Mooring Matters: Sustained Measurements of Crucial Ocean Currents

Mooring Matters: Sustained Measurements of Crucial Ocean Currents

For the next installment in our series of technical articles, Dr. Peter Spain of Teledyne RD Instruments discusses the development of ADCP technology and the use of syntactic foam buoyancy in subsea moorings for sustained measurements of ocean currents.

Sustained Measurements of Crucial Ocean Currents

Teledyne RDI ADCPs and DeepWater Buoyancy Deliver a Go-To Combo

By Peter Spain Ph.D., Teledyne RD Instruments

Current Profiling

ADCPs are sonar systems that measure motion underwater. Using sound waves, they work like hand-held radars used by police to catch speeding motorists. To measure motion, ADCPs emit sound bursts along beams angled upward or downward.

Echoes are returned due to scattering off particles. Because zooplankton and suspended sediments are carried by the moving water, echoes scattered off them carry a change in pitch; this is the Doppler Effect. It tells how fast the current is moving and in what direction.

Sound waves propagate through the water column so echoes are returned and processed from many depths. The vertical range of this collection of measurements—called a profile of ocean current velocities—is greater for lower frequency sound waves.

Introduction

Next to the eastern seaboard of continents stream the largest currents on the planet. They have been well-known to seafarers for centuries. Found around the globe, these major ocean currents are energetic, narrow and deep. They exist in all ocean basins, north and south of the equator: Gulf Stream, Kuroshio, and Brazil, Agulhas, East Australian Currents respectively.

These strong currents move much warm water poleward from low latitudes; thus, they redistribute heat for the earth’s climate system. On shorter time scales, they affect regional and local weather. These flows transfer organisms, nutrients, chemicals, debris, and pollutants – all affect life in and out of the sea and along coastlines. And strong currents affect routes selected by shipping.

Crucial ocean currents have been studied to measure their structure, transport, and fluxes—and, in recent times, their changes on seasonal and longer times scales. In ball-park numbers, these flows span 100 km, move faster than 100 cm/s, and carry 100 times the outflow of the world’s largest river.

Measuring these currents has been challenging. To capture their extent, measurements need to reach deep. To resolve changes over time, measurements need to be sustained. And to survive, persistent measurement methods need to withstand the energy of these powerful currents. For example, surface drifters, floats, and gliders are quickly swept away in strong upper-ocean currents.

Figure 1. Large ADCP Buoys with Teledyne RDI ADCPs off South Africa. Credit: SAEON Egagasini Node. http://asca.dirisa.org/

Programs making long-term measurements of important currents rely on resilient moorings. And for measuring strong currents in the upper ocean, these moorings carry ADCPs.

In this two-part report, we first review some background to moorings carrying Teledyne RDI ADCPs mounted in DeepWater Buoyancy buoys. Then we look at sustained measurements of crucial ocean currents in some less-familiar places.

Figure 2. William Richardson, pioneer of Buoy Group at WHOI. Credit: Nova Southeastern University. LINK

Background

Almost 60 years ago at WHOI [1], William. S. Richardson launched the modern era of ocean-current metering. For studying deep-sea currents—notably, the Gulf Stream—he identified and invented two essential tools: a recording current meter and an unattended mooring. Richardson’s intent for the mooring was to suspend current meters at several depths. The meters would record long time-series of currents simultaneously. For studying currents across large areas, Richardson deployed several moorings.

Over the next two decades, the Buoy Group at WHOI engineered this reality. Their impressive results were hard won in the harsh and unforgiving environment of the deep sea. You can read more at this link: 50-years-of-the-whoi-buoy-group. For the UK story, see this PDF: UK_moorings.pdf.

Along the way, one key problem was mooring loss. A leading culprit was large drag force caused by strong currents. The adjacent graphic shows a section of the Gulf Stream in the upper 2000 m. Speeds are directed along-stream. Notice the extreme current speeds in the upper ocean and the large spatial gradients.

[1] Woods Hole Oceanographic Institution. See Richardson et al. report (WHOI Ref: 63-1)

Figure 3. Gulf Stream currents and thermal structure. Distance: km, Current speeds: cm/s. Credit: Halkin + Rossby, 1985. LINK

For recording currents accurately, the meters need to hold position in three dimensions. The mooring must therefore be taut. To this end, sizable buoyancy is added to the mooring line. Yet, unavoidably, these elements increase drag forces exerted by strong currents.

Besides sweeping away moorings, strong drag forces caused mooring lines to pull apart (part way up) or to blow-over. The latter mooring motion carried instruments and mooring elements in large vertical excursions: 300-500 m in a tall mooring. See Fig. 4. These excursions confounded interpretation of measurements. Worse, the mooring could sink when in-line buoyancy was crushed by high pressure at unplanned depths.

Figure 4. Large vertical excursions of a mooring line in the Gulf Stream. Time series of two pressure sensors mounted in-line and separated by 200 m.  Credit: Hogg, 1986.  LINK

Mooring Changes

By the mid 1980’s, the design of both moorings and current meters had evolved substantially. Fig. 5 shows typical designs. Highlighted are important changes in mooring components. Notice the change in where buoyancy is added.

One strategy to decrease mooring losses was reducing drag. Major currents have strong near-surface speeds. To avoid these, moorings that terminated subsurface were developed. Many were topped with large spherical buoys. They provide the same buoyancy for less drag than smaller options. To solve the crushing problem during severe blow-over, these large spheres were made of syntactic foam.

Figure 5. Deep-sea moorings—pre ADCPs: Changes from early-1960’s to mid-1980’s. Credit: Richardson et al., 1963 WHOI Ref 63-1;  Molinari, 1986 LINK

Beginning with Hogg (1986), scientists introduced methods for correcting measurements confounded by blow-over of a mooring. As well, methods for evaluating the design and dynamics of moorings were more available. See Mooring Design and Dynamics

Figure 6. Spherical syntactic foam buoys housing Teledyne RDI ADCPs. Credit: NOAA. LINK

ADCPs

From the mid 1980’s, ADCPs provided a new solution for measuring strong surface currents. A mechanical current meter must be immersed in the flow it measures. In contrast, ADCPs are sonar systems; they can measure current velocity remotely. They emit an acoustic signal and then process the informational content of returning echoes.

Scientists realized that ADCPs looking upward could be used to measure strong surface currents while deployed in slower waters below. This helped reduce drag on the mooring. To this end, ADCPs were mounted in the flotation buoy atop subsurface moorings. Pioneering this approach was Friedrich A. Schott at University of Miami.

DeepWater Buoyancy’s antecedent, Flotation Technologies, developed these buoys as standard kit for ADCPs. Using syntactic foam for flotation elements permitted custom designs. Notably, a cylindrical instrument well was inserted along the vertical axis of the large spheres. Housing ADCPs in this sheltered location reduced current drag on the mooring. Since the late 1980’s, ADCPs have been commonly mounted atop a subsurface mooring within a collar of syntactic foam.

To further decrease drag on the mooring, new designs evolved for syntactic flotation buoys. An elliptical-shaped float that is more hydrodynamic became a common component on many deep sea moorings.

Figure 7. DeepWater Buoyancy Elliptical ADCP Buoy.  LINK

For measuring very strong currents, such as tidal streams, a torpedo-shaped buoy is now state-of-the-art. This approach reduces drag and increases stability in pursuit of moored nirvana—low tilt and minimal vertical excursions.

Figure 8. DeepWater Buoyancy StableMoor® Buoy holding Teledyne RDI ADCP. Credit: Bedford Institute of Oceanography. LINK

Moored ADCP Arrays

A mix of methods is needed to clarify the long-term effects of global warming. Moored arrays in major ocean currents provide an essential ingredient. Insights have come from researchers using computer models and satellite-based observations. And drifters, gliders, and floats can provide snapshots. Yet there is no substitute for hanging around in these deep and energetic flows.

For scientists to see long-term trends and large-scale connections, moored arrays must collect sustained time series. And for collecting this information Teledyne RDI ADCPs mounted in DeepWater Buoyancy flotation provide a go-to combination.

.   .   .   .   .   .   .  

 

In Part 2 of this report, we review some compelling examples of moored ADCP arrays measuring crucial ocean currents around the globe.

About DeepWater Buoyancy, Inc.

DeepWater Buoyancy creates subsea buoyancy products for leading companies in the oceanographic, seismic, survey, military and offshore oil & gas markets.   Customers have relied on our products for over thirty-five years, from the ocean surface to depths exceeding six thousand meters.

Learn more at www.DeepWaterBuoyancy.com

About Teledyne RD Instruments

With well over 30,000 Doppler products delivered worldwide, Teledyne RD Instruments is the industry’s leading manufacturer of Acoustic Doppler Current Profilers (ADCPs) for current profiling and wave measurement applications; and Doppler Velocity Logs (DVLs) for precision underwater navigation applications. Teledyne RDI also supplies Citadel CTD sensors for a variety of oceanographic applications.

Learn more at www.teledynemarine.com/rdi/

2018 European Teledyne Marine Users Conference

2018 European Teledyne Marine Users Conference

Sponsors and Exhibitors

DeepWater Buoyancy is co-sponsoring and exhibiting at the first European Teledyne Marine Users Conference .  The event is being held in Cannes France, October 9-11.

We will be represented at the event by Dan Cote, our Sales Manager.  If attending, please be sure to stop by our exhibit table and visit with him.

 

About the Event

TMTW offers a packed, non-stop schedule that truly offers something for every level of users, from novice to seasoned pro.​

Morning sessions will be comprised of three concurrent tracks dedicated to presentations given by Teledyne users from around the globe, who will share their experiences, challenges and solutions using Teledyne products in a wide array of application areas, including:

  • Oceanographic Research
  • Hydrography
  • Offshore Energy
  • Civil Engineering / Infrastructure
  • River/Stream Monitoring
  • Security / Defense
  • Aquaculture / Fisheries​

Attendees are sure to learn new and helpful information from these sessions, not only from the speakers, but from the questions and answer, and interaction with their industry peers in these sessions.

Afternoon sessions are comprised of Teledyne Marine product / software training, new product and application introductions, Q&As with Teledyne’s technical teams, dockside and on-water demonstrations, one-on-one meetings, and an opportunity to visit with our top-tier co-spons​​ors to discuss their third party solutions and services.

Questions?  Please contact Margo Newcombe at margo.newcombe@teledyne.com.​

For more details about the conference: ClickHere

To register: ClickHere

About DeepWater Buoyancy, Inc.

DeepWater Buoyancy creates subsea buoyancy products for leading companies in the oceanographic, seismic, survey, military and offshore oil & gas markets.   Customers have relied on our products for over thirty-five years, from the ocean surface to depths exceeding six thousand meters.

Learn more at www.DeepWaterBuoyancy.com

About Teledyne Marine

Beginning as a small collection of unique marine solution providers and expanding to a powerhouse of highly engineered, high performance solutions for a broad range of markets, Teledyne Marine now offers the largest breadth of marine technology in the industry.

With technologies divided into 5 core segments; Imaging, Instruments, Interconnect, Seismic and Vehicles, Teledyne Marine sales staff can address not only brand level solutions, but turn-key, customized systems that leverage our full range of technology. Our goal is to provide one-stop purchasing capability, world-wide customer support, and the technical expertise to solve your toughest challenges.

A Sea of Solutions…..One Supplier.

Learn more at teledynemarine.com

NEW Pop-Up Buoy for EdgeTech PORT LF-SD.

NEW Pop-Up Buoy for EdgeTech PORT LF-SD.

Announcement

DeepWater Buoyancy, Inc. announces that it has developed a new Pop-Up Buoy Recovery System (PUB) for the EdgeTech PORT LF SD Acoustic Release.  Like the original product, the new PUB allows for direct retrieval of seabed packages, such as anchors, anchor lines, and bottom-mounted frames and instruments.

The new product was developed with EdgeTech’s product development team at the request of Woods Hole Oceanographic Institute.

Pop-Up Buoy Product Details

Easily mounted to any framework, the assembly sits on the seafloor until the acoustic release is activated. Once the release completes its disconnection, the buoy lifts free from the canister and rises to the surface. A synthetic line connects the buoy directly to the framework of the seabed item and allows for retrieval.

The buoy is outfitted with an electropolished 316 stainless steel frame.  The canister holds 75 meters of 1/4″ synthetic line. (Other line lengths are available upon request.) The recovery buoy is made from high-strength DeepTec® solid syntactic foam. The foam is finished with an abrasion-resistant, polyurethane elastomer coating.

The canister is made from PVC and 316SS plate. It has a rugged design and has attachment features to permit various mounting configurations, including easy mounting to our BTM-AL50 tripod bottom mounts.

To learn more about the PUB – CLICK HERE

Acoustic Release Product Details

The PORT Push Off Release Transponder is ideal for deployments in coastal environments. The mechanical drive off system is the best choice for deployments where acoustic release mechanisms can experience growth or sediment build up. Its unique push-off mechanism provides reliable release every time.

The low frequency acoustic command structure is proven to be very reliable and is unsurpassed in multi-path environments.

Features:

  • All Aluminum components
  • Simple and easy maintenance
  • Small lightweight package
  • Medium load acoustic release
  • Full transponder capability
  • 1.25 years on alkaline batteries
  • Reliable and secure command coding
  • including Enable, Disable and Release commands
  • Purge Port
  • Auto Disable
  • Tilt & Release indication

To learn more about the PORT LF SD – CLICK HERE

About DeepWater Buoyancy, Inc.

DeepWater Buoyancy creates subsea buoyancy products for leading companies in the oceanographic, seismic, survey, military and offshore oil & gas markets.   Customers have relied on our products for over thirty-five years, from the ocean surface to depths exceeding six thousand meters.

Learn more at www.DeepWaterBuoyancy.com

About EdgeTech

EdgeTech is a leading manufacturer of underwater technology solutions. The company is known worldwide for its high quality products which include: side scan sonars, sub-bottom profilers, bathymetry systems, AUV and ROV-based sonar systems, combined and customized solutions. In addition to the full line of underwater survey products, EdgeTech provides reliable USBL systems, transponder beacons, deep sea acoustic releases, shallow water and long life acoustic releases, MRUs and customized underwater acoustic command and control systems.

Learn more at www.edgetech.com

DeepWater Buoyancy in 2018 MTR100

DeepWater Buoyancy in 2018 MTR100

Announcement

DeepWater Buoyancy has again been selected for the prestigious Marine Technology Reporter “MTR100”.

Marine Technology Reporter (MTR) magazine is the world’s largest audited circulation publication serving the global Marine Technology Market. This month, MTR released its 13th Annual Listing of 100 Leading Subsea Companies.

DeepWater Buoyancy is proud to be amongst a distinguished collection of companies that include: Teledyne Marine, Kongsberg, Hydroid, and Sonardyne International, to name just a few.  In addition to being selected, a short article about DeepWater Buoyancy was included in the publication.

MTR100 Article

DeepWater Buoyancy is the world’s largest supplier of subsea buoyancy to the ocean science community. The product line is more than 35 years old and is known throughout the world and in all offshore marine markets. DeepWater Buoyancy also has a vast and growing product line of buoyancy solutions for offshore oil and gas and technology companies. Though it offers products for shallow water applications, it specializes in deepwater, providing solutions to depths of 6,000 meters and beyond.

In 2013, DeepWater Buoyancy acquired the rights and designs for the legacy Flotec material technology and products, and has been producing, improving and growing the Flotec product line. Each year the product line improves and new items are added in response to market conditions, changing technology, and customer requirements. In addition to product innovation, new processes and equipment are added to the companies already wide capabilities.

At the heart of the DeepWater Buoyancy product line are the subsurface ADCP buoys, originally developed for Teledyne RD Instruments’ ADCPs. Consisting primarily of both spherical and elliptical buoys, the product line also includes the unique StableMoor® Mooring Buoys. These torpedo-shaped buoys are engineered to house ADCPs and other sensors for high current data collection applications. By design, the StableMoor® reduces drag and increases mooring stability in extreme fl ow regimes, thereby producing superior data sets.

However, DeepWater Buoyancy’s product line goes well beyond ADCP buoys. In the oceanographic market there are bottom mounts, instrument collars, and cable floats. For offshore oil and gas, there are installation blocks, modular buoys, deepwater marker floats and ROV buoyancy. In addition to DeepTec® syntactic foam products and custom-engineered components, there are also plastic, composite, polyurethane and fabricated metal products.

DeepWater Buoyancy StableMoor® Mooring Buoy outfitted with a trim bar and carbon fiber instrument wings.

 

About DeepWater Buoyancy, Inc.

DeepWater Buoyancy creates subsea buoyancy products for leading companies in the oceanographic, seismic, survey, military and offshore oil & gas markets.   Customers have relied on our products for over thirty-five years, from the ocean surface to depths exceeding six thousand meters.

Learn more at www.DeepWaterBuoyancy.com

About Marine Technology Reporter

Marine Technology Reporter magazine is the world’s largest audited circulation publication serving the global Marine Technology Market. From offshore energy to subsea defense to science and technology, MTR covers it all.

Each issue is packed with the latest cutting edge technology from the industry’s leading companies, as well as exclusive insights and market analysis that are critical in today’s subsea industry.

If it is subsea industry related technology you seek, you will find it in Marine Technology Reporter Magazine.

Learn more at www.marinetechnologynews.com

Exhibiting at Oceans in Action

Exhibiting at Oceans in Action

Sponsors and Exhibitors

DeepWater Buoyancy is co-sponsoring and exhibiting at the Marine Technology Society’s 8th annual Oceans in Action workshop.  The event is being held in Gulfport Mississippi on August 21st and 22nd.

We will be represented at the event by Chris Kelly and Kurt Fromhertz, our sales representatives in the gulf coast.  If attending, please be sure to stop by our exhibit table and visit with them.

 

About the Event

The Oceans In Action Workshop is an annual event featuring new technologies in the maritime industry.  Day one consists of updates from federal, state, and regional organizations and new technologies that have helped their missions over the past year.  New technologies of interest to local agencies are also presented. Day two is our industry-focused day and has historically consisted of panels on current and emerging topics.  This year, resulting from a closer collaboration with the Commander, Naval Meteorology and Oceanography Command, our event is even more exciting!

Day two will begin with pier-side demonstrations of select technologies associated with the Advanced Navy Technology Exercise (ANTX). Workshop participants will be shuttled to the Port of Gulfport to watch staged demonstrations of new technologies, review results of exercises recently held in the Gulf of Mexico, and to tour recently-completed facilities, including the new University of Southern Mississippi (USM) Marine Research Center.  Participants will be shuttled back for luncheon presentations, a panel on the Blue Economy, and Business-to-Business/Business-to-Government meetings.

Highlights

  • Keynote Addresses by leading State and Navy Officials
  • Tours of the new USM Marine Research Center
  • Pierside demonstrations associated with the Advanced Naval Technology Exercise (ANTX): Gulf Coast
  • Blue Economy Panels: BlueTech Clusters and Finding Seed/Venture Capital
  • B2B/B2G meetings with federal agency representatives and large prime contractors

Speakers from the following agencies:

  • Commander, Naval Meteorology and Oceanography Command (CNMOC)
  • Naval Research Laboratory – Stennis Detachment (NRL)
  • NOAA’s National Data Buoy Center (NDBC)
  • NOAA’s National Centers for Environmental Information (NCEI)
  • USGS Hydrologic Instrumentation Facility (HIF)
  • USM’s School of Ocean Science & Technology/USM’s Marine
    Research Center
  • The U.S. Integrated Ocean Observing System (IOOS)

For additional information contact Laurie Jugan at laurie.jugan@usm.edu

To register: ClickHere

About DeepWater Buoyancy, Inc.

DeepWater Buoyancy creates subsea buoyancy products for leading companies in the oceanographic, seismic, survey, military and offshore oil & gas markets.   Customers have relied on our products for over thirty-five years, from the ocean surface to depths exceeding six thousand meters.

Learn more at www.DeepWaterBuoyancy.com

DeepWater Buoyancy Grows Sales Team

DeepWater Buoyancy Grows Sales Team

Announcement

DeepWater Buoyancy is pleased to announce and welcome Wes Bilodeau to the sales team. Wes comes with a degree in environmental design, and experience in manufacturing and technical sales.

As a Sales Engineer, Wes will provide support to the growing international and Gulf Coast clientele and representative networks. Additionally, he will work with the engineering team on new product development and commercialization.

Wes will be part of the US-based sales team led by Dan Cote, Sales Manager.  Dan has almost 30 years of experience in subsea buoyancy for oceanography and oil & gas.

About DeepWater Buoyancy, Inc.

DeepWater Buoyancy creates subsea buoyancy products for leading companies in the oceanographic, seismic, survey, military and offshore oil & gas markets.   Customers have relied on our products for over thirty-five years, from the ocean surface to depths exceeding six thousand meters.

Learn more at www.DeepWaterBuoyancy.com

DeepWater Buoyancy Selected for Maine Technology Asset Fund Grant

DeepWater Buoyancy Selected for Maine Technology Asset Fund Grant

Announcement

The Maine Technology Institute announced today that DeepWater Buoyancy, Inc. was selected to receive a grant as a part of the Maine Technology Asset Fund 2.0 program.

The company’s proposal was one of 18 chosen from a pool of 183 in a highly competitive selection process.

About the Grant

Brian Whitney, President of MTI stated, “The Maine Technology Institute (MTI) recently closed its Maine Technology Asset Fund 2.0 (MTAF2.0) application portal and announced that it received 183 proposals from Maine companies and organizations seeking, in aggregate, $381 million in funding.”  The MTAF2.0 program was established to enable organizations to gain and hold market share, to increase revenues, and to expand employment or preserve jobs.

In total, forty-five million dollars ($45,000,000) is being distributed in the form of matching grants to support infrastructure, equipment and technology upgrades.  These MTAF2.0 investments are expected to have a monumental impact on the State of Maine over the next five years, creating over 5,300 new jobs and resulting over $1.3 billion in economic impact.

Expanding Products and Markets

David Capotosto, Director of Business Development, commented, “DeepWater Buoyancy is seeing opportunities for new products in existing markets and demand for our products in new markets.  As such, a substantial capital investment program has begun to upgrade facilities, add equipment, and introduce new processes.  These improvements will also ensure the ongoing support of our existing customers and markets, and allow us to service customers in new applications and markets.” In the proposal for the grant DeepWater Buoyancy noted that they are involved in three of the seven key technology sectors targeted by the Maine Technology Institute (MTI); Aquaculture & Marine, Advanced Composites, and Precision Manufacturing.

Product Opportunities

DeepWater Buoyancy, Inc. has been the world’s largest producer of subsea buoyancy products for the oceanographic industry since its inception in 2013.  Additionally, the company has a vast line of buoyancy solutions for offshore oil & gas, government research, defense, aquaculture and marine markets.  The capital investment program is aimed at facilitating the growth of this line.

The growing line of products is the result of close collaboration with customers and a dedication to application-specific product design and development.  The company’s design philosophy is, “A customer should have a product that meets the application, and not be forced to adjust their application to an off-the-shelf product.”  Whether an iteration of an existing design or a completely new design, the goal is to produce the finest, most appropriate, and cost-effective solution for any given application.

About DeepWater Buoyancy, Inc.

DeepWater Buoyancy creates subsea buoyancy products for leading companies in the oceanographic, seismic, survey, military and offshore oil & gas markets.   Customers have relied on our products for over thirty-five years, from the ocean surface to depths exceeding six thousand meters.

Learn more at www.DeepWaterBuoyancy.com

StableMoor® Buoys Support Ice Studies

StableMoor® Buoys Support Ice Studies

The Right Design

DeepWater Buoyancy’s StableMoor® Mooring Buoys have been chosen to support the “Stratified Ocean Dynamics in the Artic” (SODA) initiative headed by the Office of Naval Research.

The buoys were custom-designed and built to specifications provided by the University of Washington Applied Physics Lab and the University of New Hampshire.  These buoys will support instrumentation that will map the underside of sea ice in support of the research project.

 

About the StableMoor® Buoys

The pair of StableMoor® buoys were over 12 feet (3.5 meters) long in order to house the instruments required for the deployment.  Each unit was equipped with features to allow for an upward-facing ADCP, upward facing sonar, a velocimeter, and three battery housings.  Each unit provides 475 lbs (215 kgs) of buoyancy and is rated for 750 msw.

This product was chosen by the research team because of its unique performance characteristics. Specifically engineered for high current applications, the StableMoor® is designed to reduce drag and increase mooring stability in extreme flow regimes. By decreasing frontal area (compared to a standard spherical buoy) and increasing dynamic stability in high current areas, the StableMoor® minimizes mooring inclination and excursions.

Learn more about the comparison of buoy shapes in differing flow regimes HERE

Learn more about our StableMoor® buoys HERE

The University of Washington team is well acquainted with the value of the StableMoor® design.  These two buoys add to their existing units that they have been working with for the past three years.  Some of these buoys previously supported a challenging NREL project studying high flow/turbulence sites for subsea turbines.

Learn about the NREL application HERE

About the Research Project

From the research paper “Stratified Ocean Dynamics of the Arctic: Science and Experiment Plan – Technical Report APL-UW 1601”, September 2016, by Craig M. Lee et al.

Vertical and lateral water properties and density structure within the Arctic Ocean are intimately related to the ocean circulation, and have profound consequences for sea ice growth and retreat as well as for propagation of acoustic energy at all scales. Our current understanding of the dynamics governing arctic upper ocean stratification and circulation derives largely from a period when extensive ice cover modulated the oceanic response to atmospheric forcing, resulting in weak seasonality, at least within the deep basins.

Recently, however, there has been significant arctic warming (Overland et al., 2016), accompanied by changes in the extent, thickness distribution, and properties of the arctic sea ice cover. Summertime sea ice extent has been declining since at least 1979 (when satellite-borne passive microwave sensors began providing comprehensive ice maps; Perovich et al., 2012), with a trend of –13.4% per decade relative to the 1981–2010 average (Figure 1; Perovich et al., 2015; Thomson et al., 2016). September sea ice minimum extents from 2007–2015 are the lowest in the 1979–2015 period, with a record minimum of 3.39 million sq km in 2012.

Figure 1. Time series of Northern Hemisphere sea ice extent anomalies in March (the month of maximum ice extent) and September (the month of minimum ice extent). The anomaly value for each year is the difference (in %) in ice extent relative to the mean values for the period 1981–2010. The black and red dashed lines are least squares linear regression lines. The slopes of these lines indicate ice losses of –2.6% and –13.4% per decade in March and September, respectively. Both trends are significant at the 99% confidence level. From Perovich et al. (2015).

Sea ice has become younger alongside the decreases in extent (Figure 2). Sea ice thickness typically increases with age, such that the combined trends toward decreasing extent and younger mean age point to a persistent loss of sea ice volume (Kwok et al., 2009; Schweiger et al., 2011). Thinner, younger ice tends to be weaker, more subject to deformation and fracturing, and thus more mobile and more likely to provide efficient coupling between the atmosphere and upper ocean. Furthermore, the growing summertime expanses of open water provide periods when the dynamics might more closely resemble those that govern the upper ocean at lower latitudes.

The need to understand these changes and their impact on arctic stratification and circulation, sea ice evolution, and the acoustic environment motivate the Office of Naval Research (ONR) Stratified Ocean Dynamics of the Arctic Departmental Research Initiative (SODA DRI).

Figure 2. A time series of sea ice age in March from 1985 to the present (top) and maps of sea ice age in March 1985 (lower left) and March 2015 (lower right). From Perovich et al. (2015).

Download the full technical report HERE

Learn more at the research project website HERE

About DeepWater Buoyancy, Inc.

DeepWater Buoyancy creates subsea buoyancy products for leading companies in the oceanographic, seismic, survey, military and offshore oil & gas markets.   Customers have relied on our products for over thirty-five years, from the ocean surface to depths exceeding six thousand meters.

Learn more at www.DeepWaterBuoyancy.com

Sponsoring the MTS Buoy Workshop 2018

Sponsoring the MTS Buoy Workshop 2018

Sponsors and Exhibitors

DeepWater Buoyancy is co-sponsoring and exhibiting at the 12th Annual MTS Buoy Workshop.  The event is from April 9-12 in the University of Michigan Campus in Ann Arbor, Michigan. Hosts this year are the National Oceanic and Atmospheric Administration Great Lakes Environmental Research Laboratory (GLERL), the Cooperative Institute for Great Lakes Research (CIGLR), and the Great Lakes Observing System (GLOS).

If attending, please be sure to come and meet Dan Cote, Sales Manager.

 

Event Details from MTS

It’s all about making critical measurements offshore, and getting data from the oceans and lakes back to shore“.

We are inviting all to join us for the 12th MTS Buoy Workshop at the Michigan League, located on the University of Michigan Campus in Ann Arbor, Michigan, during 9-12 April.  We welcome presenters and exhibitors.

As always, we welcome manufacturers and distributors of components and instrumentation for oceanographic buoy systems to exhibit at the workshop, inviting them to display and discuss their products. Interaction between the workshop attendees and these organizations prove to be beneficial to both.

Our hosts this year are the National Oceanic and Atmospheric Administration Great Lakes Environmental Research Laboratory (GLERL), the Cooperative Institute for Great Lakes Research (CIGLR), and the Great Lakes Observing System (GLOS).

We will open with an Ice-Breaker on Monday night, April 9th at the Graduate Ann Arbor Inn, one of our host hotels in Ann Arbor. The Speaker Program begins at 8 am on Tuesday, April 10th.”

  • Abstract Deadline – Friday, March 9, 2018
  • Early Workshop Registration – Friday, March 2, 2018
  • Exhibitor Application Deadline – Friday, March 2, 2018
  • Early Hotel Discounted Rate at the Graduate Ann Arbor and The Inn at the Michigan League – Friday, March 16, 2018
  • Power-Point Presentations Due – Friday, April 2, 2018

For more information contact Judy… jrizoli@whoi.edu

Or learn more about the event HERE

Send us an email to schedule a visit at the show with DeepWater Buoyancy’s Sales Manager … sales@deepwb.com

About DeepWater Buoyancy, Inc.

DeepWater Buoyancy creates subsea buoyancy products for leading companies in the oceanographic, seismic, survey, military and offshore oil & gas markets.   Customers have relied on our products for over thirty years, from the ocean surface to depths exceeding six thousand meters.

Learn more at www.DeepWaterBuoyancy.com

IN PRINT – Apprenticeship Program

IN PRINT – Apprenticeship Program

Local News

DeepWater Buoyancy was found In Print in Monday’s edition of the Portland Press Herald.  The regional paper highlighted the company’s participation in an apprenticeship program with the local technical school.  As a company staging for future growth, locating and developing skilled personnel is essential.  As such, the company is investing in local students as they begin their journey into the workforce.

Download a PDF of the article HERE    …or read the full text of the article below.  We were also featured on television news.  The video can be seen below the article.

Article

BIDDEFORD — Each weekday morning, Sam Roy heads to work. Alongside experienced welders at DeepWater Buoyancy, he spends five hours polishing, bending and cutting metal. Then he clocks out and heads to class at Biddeford High School.

Sam Roy, left, and Joe Woods prepare parts to be welded at DeepWater Buoyancy. Co-owner Matthew Henry said welders are in short supply. “The best thing we can do for him is show him all the skills he’ll need beyond welding,” Henry said.

Roy’s paid internship at the Biddeford manufacturer of sub-sea buoyancy products is a first for the company and the Biddeford Regional Center of Technology, and is an example of how Maine schools can prepare students to take advantage of a large, unmet demand for workers in the trades.

However, the arrangement wasn’t possible when Roy, 17, first discovered his love for welding because of state labor laws that prohibited teens from working with hazardous machinery. Roy and a bipartisan group of lawmakers first had to change those labor laws.

The revisions to the Hazardous Occupations Law for Minors allow students to work and earn money while enrolled in a cooperative or vocational training program. The changes added an exemption for students under 18 enrolled in a career and technical education – or CTE – program to work for short periods of time under the direct supervision of a fully qualified and experienced adult. The rules require the CTE program to provide basic safety training to students and to continue to oversee students’ education.

Sen. Amy Volk of Scarborough, who proposed the amendment with Reps. Martin Grohman and Ryan Fecteau of Biddeford, said the changes benefit both students and local businesses like DeepWater Buoyancy that are trying to attract skilled workers.

“Welding is a talent that is incredibly important to industry in Maine. That’s why, as a committee, we felt it was important to do everything we could to enable the next generation of students interested in a technical career path such as engineering, plumbing, automotive or nursing, to name a few, to succeed,” said Volk, Senate chairwoman of the Legislature’s Labor, Commerce, Research and Economic Development Committee.

The concept of matching students with local companies isn’t new at the Center of Technology or at the 26 other career and technical education schools around the state, but educators and tradesmen say changes were necessary to give students the experience they need to enter the workforce and fill gaps in trades that have a hard time attracting new workers.

“In the past 20 years, I’ve seen such a great need for skilled labor,” said Jim Godbout, owner of Jim Godbout Plumbing and Heating. “There used to be a lot of families going into the same trade for generations, but you don’t see much of that anymore.”

Building Industry Labor Shortage

There are now more people in Maine aging out of the workforce than entering it because of a large drop in the number of births after the 1980s, according to the Maine Department of Labor. That has left gaps in some industries that are not attracting as many skilled workers as needed.

Those gaps are felt especially hard in the building industry, where the average age of plumbing and heating contractors is now over 55.

“They’re retiring and no one is coming into the trades,” said Alice Ames, executive director of the Plumbing-Heating-Cooling Contractors Association of Maine.

Paulette Bonneau, director of the Center of Technology, said internships allow students to gain real-world experience while also exposing them to career opportunities they can pursue without leaving the state.

“They see there are a lot of cool things happening in Maine they can be a part of. This is key for us in the state,” she said. “There are so many neat things going on in the industry here in Maine.”

Skills Not Learned in School

 Last year, over 90 percent of Maine CTE high school students graduated, compared with 60 percent of their peers, according to a study by Educate Maine and the Maine State Chamber of Commerce. Many students leave CTE centers with industry-recognized certifications and technical certificates that allow them to go right to work out of high school. Some of those certifications can be carried over as credits in college.

The Biddeford Regional Center of Technology is open to students from Biddeford High School, Thornton Academy and Old Orchard Beach High School. It offers 16 courses of study ranging from welding-metal fabrication to early childhood education to business and financial management.

The center last year added a plumbing program that now includes more than a dozen students.

“This is not your grandfather’s vocational school,” Bonneau said. “The technology high school setting of today is focused on academic rigor, work ethic and people skills that traditional high school students often are not exposed to.”

Roy was introduced to the Center of Technology during a technology course he took as a sophomore. The teacher taught Roy and his classmates about multiple options at the center, but it wasn’t until a trip to the welding class that Roy’s interest was truly sparked.

“Something just clicked,” said Roy, who comes from a family of toolmakers and machinists. “I found it more interesting and unique than anything I’d done before.”

Roy said he felt energized to study welding and threw himself into the course during his junior year. Last year, he became the first junior at the tech center to obtain an American Welding Society certification.

Matthew Henry, co-owner and plant manager of DeepWater Buoyancy, said good welders in Maine are in short supply and the company was happy to partner with the Center of Technology so it could bring Roy to work.

“He’s essentially just another employee,” Henry said. “The best thing we can do for him is show him all the skills he’ll need beyond welding.”

Roy doesn’t have the welding skills necessary to do the same work as experienced DeepWater Buoyancy employees, but he said he is constantly learning from his mentor and other workers when he’s on the job. He undergoes the same extensive safety training and also is learning about things like blueprints.

Roy, who will attend Eastern Maine Community College after graduation, said he believes his future career in welding will allow him to stay in Maine or bring him to places like Canada and Alaska to work as a pipefitter.

“With other jobs I’ve had, it doesn’t have the same level of satisfaction of getting something done that benefits other people,” he said.

A Plumbing Career Blooms

The labor law change also allowed Jackson Oloya, a 17-year-old second-year plumbing student, to start a paid internship at Jim Godbout Plumbing and Heating in Biddeford.

Since January, Oloya, a senior from Biddeford High, has spent up to 24 hours a week working with Godbout’s more experienced employees. He earns $12 an hour, but that could go up by $1 or $2 an hour by the end of the summer as he learns new skills.

So far, Oloya’s work has included fixing toilets, repairing a commercial shower at the YMCA and helping a service technician identify and address home heating problems.

After working from 7:30 a.m. to 11:30 a.m., he returns to school for classes and to play basketball.

“He’s not just working, he’s doing,” Godbout said. “He’d love to work a lot more and we’d love to have him. He’s super eager to learn.”

Oloya started in the plumbing program at the center during its first year. It was interesting, he said, but it wasn’t until the hands-on part of the course began that he really got excited about his future career.

“I’m not a person who stays in an office all day. I like to put things together,” he said. “I thought of myself 10 years from now and said, ‘I can do this.’ ”

Investing in Young People

Oloya, who was born in Uganda and moved to the United States 15 years ago, said he has found he most enjoys doing repair work because it allows him to help customers directly. He also likes the idea that he can pursue a career in the community where he already lives with his mother and 10 siblings.

In the fall, Godbout will pay for Oloya to attend a 12-week advanced training program with the Maine Energy Marketers Association. Godbout said he is willing to invest in young people like Oloya who have a strong work ethic and are serious about building a career with his company.

Oloya and Godbout will sign a contract saying Oloya will continue working for the company after his training.

“It’s a great opportunity,” Oloya said. “I’m getting my brain working a lot. I’ll learn lots of new skills and I like that a lot.”

Godbout said he is encouraged to see more students becoming interested in the industry, and he thinks the opportunities for paid internships will grow “by leaps and bounds” because so many plumbers and electricians are eager to work with young people getting into the industry.

“It’s a great opportunity for these students,” he said. “You can’t buy an education like that.”

And on TV

The story was also run in video as well.

About DeepWater Buoyancy, Inc.

DeepWater Buoyancy creates subsea buoyancy products for leading companies in the oceanographic, seismic, survey, military and offshore oil & gas markets.   Customers have relied on our products for over thirty-five years, from the ocean surface to depths exceeding six thousand meters.

Learn more at www.DeepWaterBuoyancy.com

Representative Spotlight – ASB Systems in India

Representative Spotlight – ASB Systems in India

DeepWater Buoyancy has the finest international representative network for oceanographic subsea buoyancy.  What follows is the next in a series of articles on our representative groups.  This time we are highlighting our representative in India – ASB Systems Pvt Ltd.  Founded in 1995, ASB is another of our representatives who have many years of experience integrating our buoyancy solutions into subsea moorings and structures. ASB services our customers in this region such as the National Institute of Oceanography and the National Centre for Antarctic & Ocean Research.

 

Introduction

ASB Systems was formed in 1995, with a vision to become a multifaceted company in promoting and setting up a strong foundation for a variety of marine related products. The mission is to build and strengthen the foundation of our principals in the Indian market by creating a perfect passage between principal and the end-user. Since inception, the Company has focused on two key issues: the sale of quality products followed by equally good quality post sale support to ensure maximum uptime and utilization of systems. This, in turn, has attracted high levels of customer appreciation for our timely and efficient service.

Representation

We are the authorized sales and service representative of some of the leading manufacturers of Hydrographic and Oceanographic equipment. Our principals are:

  • Teledyne RD Instruments, USA – Acoustic Doppler Current Profiler
  • Hemisphere GNSS,USA – DGPS
  • Hypack, USA – Hydrographic Survey Software
  • Teledyne Odom Hydrographic, USA – Multi-beam & Single Beam Echo Sounders
  • Wartsila ELAC Nautik GmbH, Germany – Multi-beam Echosounders
  • Teledyne Benthos, USA – Acoustic Modems & Releases, Glass Floats
  • SMC Ship Motion Control, Malta – Motion Sensors
  • SBG Systems, France – MEMS IMU
  • SevenCs, Germany – Electronic Charts
  • CODAR Ocean Sensors, USA – Ocean Surface Current & Wave Monitoring
  • Coda Octopus Products Ltd, UK – Echoscope & IMU
  • Deepwater Buoyancy, USA – Subsea Buoyancy Products
  • Innomar Technologies GmbH, Germany – Sub Bottom Profiler
  • Nke Instrumentation, France – Multi-parameter Probes
  • dotOcean NV, Belgium – Instruments for Sediment and Density Measurement

Location and Staff

The Company owns its only premises in Mumbai, in order to maintain strict quality control on our service and have expertise at one point.  ASB Systems is known among Indian clients as a company which delivers quality product and support.  The Service Centre has test equipment (both specialized and normal), documentation, and necessary tool and test equipment to diagnose & repair equipment that ASB sells. The service engineers are periodically trained at our principals’ plants to update their technical skills in order to support contracts, improve troubleshooting, and help in our sales effort.   ASB engineers are responsible for setting high standards of customer support. As a result, the group has always added to the client list and has rarely lost a client.

Services Offered

Sales – Representing OEMs in India for marine research instruments

Warranty Support – To provide service support during warranty period on behalf of OEM

Installation – Installation, Commissioning and Training

Maintenance – Service, Support, Troubleshooting, and Repairs

Our Engineers have the expertise to diagnose defects and provide solutions. Warranty support is provided with clear guidance and support from our principals. Spares as and when required can be arranged ensuring that the lead-time is minimized. ASB Systems also provide Annual Maintenance Contracts for the systems we sell.  ASB engineers keep themselves updated through self-learning programs as well as training organized at the OEM factories.

Over the years, we have provided services to government and private organizations in our field of operation. Effective and efficient support is our prime objective and we make conscious effort to satisfy our customers. We have a long experience in supplying oceanographic products including deep water buoys, ADCPs, acoustic modems, and acoustic releases. Our engineers possess the expertise to integrate these subsea devices and have been ably supporting our esteemed customers for such applications. Whether it is calculating the deployment duration of an ADCP and modem to ensure that the batteries last through the deployment, or addressing a requirement to acquire real-time data from subsea instrumentation, ASB Systems has been proactively providing support for every type of application.

Markets

Principle markets for the company include land and marine survey companies, harbours, container ports, universities, government marine institutes, fish farms, OEM system integrators, dredging contractors, super yachts, racing yachts, marine archaeology, ROV and autonomous underwater/surface vehicles, pilotage, TV outside broadcast, precision agriculture, and fellow marine equipment suppliers and rental organisations.

Our Team Our Strength

Pop-Up Buoy Product Image

Contact ASB Systems Pvt. Ltd.

Gopa Williams   |   gopa@asbsystems.net  |   +91 22 4230 1919 / 1927
www.asbsystems.co.in

About DeepWater Buoyancy, Inc.

DeepWater Buoyancy creates subsea buoyancy products for leading companies in the oceanographic, seismic, survey, military and offshore oil & gas markets.   Customers have relied on our products for over thirty-five years, from the ocean surface to depths exceeding six thousand meters.

For further sales information:  Dan Cote, Sales Manager  |  sales@deepwb.com  |  +1 207 502 1400

For further company information:  David A. Capotosto |  davidcap@deepwb.com  |  +1 207 468 8545

Exhibiting at Oceanology International 2018

Exhibiting at Oceanology International 2018

Show News

DeepWater Buoyancy is exhibiting at Oceanology International 2018 in London, UK.  The conference is from March 13-15 at the ExCel London conference center.  Please come visit us at Stand C353 and meet Dan Cote, Sales Manager, and David Capotosto, Director of Business Development.

Oceanology International is an exhibition and conference designed to bring together marine professionals, businesses and organizations to improve their strategies for measuring, developing, protecting and operating in the world’s oceans.

 

 

Learn more HERE

Send us an email to schedule a visit with us at the show… sales@deepwb.com

DeepWater Buoyancy Exhibitor Information HERE

About DeepWater Buoyancy, Inc.

DeepWater Buoyancy creates subsea buoyancy products for leading companies in the oceanographic, seismic, survey, military and offshore oil & gas markets.   Customers have relied on our products for over thirty years, from the ocean surface to depths exceeding six thousand meters.

Learn more at www.DeepWaterBuoyancy.com

IN PRINT – “From the Field”

IN PRINT – “From the Field”

Editorial Focus

DeepWater Buoyancy was found In Print in the December Issue of the Ocean News and Technology.  The article was an Editorial Focus entitled “From the Field”.  It is a question and answer session with DeepWater Buoyancy’s Director of Business Development, David Capotosto.

Download a PDF of the article HERE

…or read the full text of the article below.

The Article – From the Field

Could you give us some company history?

To understand our company history, I have to take you back to 1979.  In that year, David Cook founded Flotation Technologies (Flotec) to produce subsea buoyancy products made from syntactic foam.  Mr. Cook was one of the inventors of syntactic foam and had been working with it for over a decade.  He and his family grew Flotec into a leader in oceanographic buoyancy products, pioneering buoyancy for instruments like ADCPs and transponders. In the early 2000s, the company proceeded to develop and to produce best-in-class oil and gas subsea products, including drill riser buoyancy and distributed riser & umbilical buoyancy, arguably some of the most challenging subsea foam products.

Flotec was acquired in 2008 by a Houston-based subsea equipment and service provider.  In 2013, DeepWater Buoyancy acquired the rights and designs for the legacy Flotec material technology and products when its parent company was in the process of closing the New England facility. Since then, DeepWater Buoyancy has been producing, improving and growing the Flotec product line, which has been the industry standard for decades.

What are your standard products?

Our standard product line is vast and covers applications in numerous markets.  It is, of course, principally subsea buoyancy, but also includes related, subsea deployment products.

At the heart of the DeepWater Buoyancy product line are the subsurface ADCP buoys.  These buoys, originally developed for Teledyne RD Instruments’ ADCPs, are considered the gold standard within the industry.  Consisting primarily of both spherical and elliptical buoys, the product line also includes the unique StableMoor® Mooring Buoys.  These torpedo-shaped buoys are engineered to house ADCPs and other sensors for high current data collection applications.  By design, the StableMoor® reduces drag and increases mooring stability in extreme flow regimes, thereby producing superior data sets.

 

However, DeepWater Buoyancy’s product line goes well beyond ADCP buoys.  In the oceanographic market there are bottom mounts, instrument collars, and cable floats.  For offshore oil & gas, there are installation blocks, modular buoys, deepwater marker floats and ROV buoyancy.  In addition to DeepTec® syntactic foam products and custom-engineered components, there are also plastic, polyurethane and fabricated metal products for use subsea.

We continue to develop the standard product line as projects and opportunities arise.  Recently we have added mooring line fairings, a new modular installation buoy and a pop-up buoy recovery system.

What have been some of the challenges?

One of the largest challenges we face is lead time.  There has always been downward pressure in this area.  But with the changes in the O&G market, it seems to have intensified.  Overall project timelines are shortened and this, coupled with other factors, can affect procurement schedules.

And of course, when designing a system, buoyancy is often the last item to be specified, as the balance of the system’s weight needs to be characterized before uplift can be calculated.

Could you talk about an especially challenging case study?

We were contacted by a large offshore services provider preparing to do a large metocean study in Brazil for a subsea oil production site.  They had been awarded the contract but needed seven of our 64” diameter elliptical buoys.  Additionally, they needed to have the buoys customized.  In order to meet their deployment timeline, they asked us to produce them in half of the time that would normally be required.

How did you overcome those challenges?

Integral to our business and manufacturing strategy is the ability to execute almost all the required manufacturing processes in house.  That means we have control of the sequence of operations and can expedite internally, as opposed to relying on and pressuring outside subcontractors.

Our operations team was engaged in the challenge and rose to it.  The systems were delivered on time to the customer and allowed them to deploy on schedule.

What are your largest market sectors?

Our largest markets are oceanographic and military/government.  Additionally, we have been strong in the offshore oil & gas market and are looking to see growth in that market as the industry recovers.

What have been some of your custom products?

I am glad you asked this question. Custom products are certainly a strong suit of ours.

Often a client can’t find their ideal solution in the product line.  Sometimes it is simply a matter of customizing some feature of a standard product.  But often it requires our team to start with a clean sheet of paper – or perhaps better stated – a new solid model file.  Either way, we will design and produce a custom product to meet the requirement.

The company’s design philosophy is, “A customer should have a product that meets the application, and not be forced to adjust their application to an off-the-shelf product.”  Whether an iteration of an existing design or a completely new design, the goal is to produce the finest, most appropriate, and cost-effective solution for any given application.

Part of the strength of this custom offering is our engineering team with state-of-the-art CAD/CAM technology.  But it also includes the vast manufacturing capability and know-how in house.  We have a wide assortment of internal manufacturing processes and tools; from foam manufacturing, to welding, to machining, to urethane spray coating.  And we have a seasoned staff of capable technicians with decades of experience with these processes and these product lines.

Using this approach, we have produced everything from small components for AUVs, to acoustic baffles, to custom buoyancy blocks for the OOI project that are the size of a small automobile.

One recent example

The National Oceanographic Centre (NOC) in Southampton UK approached us with a requirement for a 6000m benthic lander for the RAPID array project.  RAPID ARRAY has been deploying bottom pressure recorders across the Atlantic since 2004.  The NOC team wanted to address issues in previous designs and make improvements.

We worked closely with them to design a new system from scratch using solid modeling.  The system included buoyancy, framework, instrument clamps and hardware.  The lander is dropped to the seafloor where it collects data.  The product is equipped with a dual acoustic release system which allows it to drop ballast when it is time for recovery.  Once the ballast is dropped, the system is positively buoyant and returns to the surface.

The product was jointly developed and the system was built entirely in our facility.  NOC integrated all the instruments and deployed in Spring of this year.  Recovery is planned for Spring of 2020.

 

Have there been any AHA moments?

Along the way there have certainly been some “AHA moments”.  Those moments, when related to products, are often a result of collaboration with the gifted ocean scientists, ocean engineers and the numerous instrument manufacturers with whom we work.

There have also been a few material science “AHAs”.  After all, at the center of what we do is the development of syntactic foam, that amazing material that provides buoyancy but resists being crushed by the pressure of ocean depths.  Of course, I can’t share those moments with you as our syntactic foam technology is proprietary.

What have been some of the most interesting projects?

Our StableMoor® buoy has provided us with some interesting applications.  It is a product that allows for a stable mooring to gather data in high current sites.  Last year the National Renewable Energy Laboratories and the University of Washington used the product in a unique way to study turbulence in potential site of subsea turbines for renewable energy production.  Understanding turbulence is important in these sites as turbulence places stress on the turbine blades.

Read a related article  HERE   –   Download a copy of the NREL paper HERE

The product was fascinating in that the buoy housed a number of instruments, the primary instruments were the turbulence sensors.  To get the data that was required, there was a turbulence sensor placed in the nose of the buoy.  But there were also two additional sensors placed at the end of special carbon-fiber wings.

These kinds of projects are interesting because they challenge us to produce unique and robust designs and because they take our buoys to some of the most hostile and chaotic areas of the ocean and in the midst of that difficult environment, support the gathering of important data.

About DeepWater Buoyancy, Inc.

DeepWater Buoyancy creates subsea buoyancy products for leading companies in the oceanographic, seismic, survey, military and offshore oil & gas markets.   Customers have relied on our products for over thirty years, from the ocean surface to depths exceeding six thousand meters.

Learn more at www.DeepWaterBuoyancy.com

IN PRINT – Pop-Up Buoy Recovery System

IN PRINT – Pop-Up Buoy Recovery System

New Product

DeepWater Buoyancy was found In Print in the December Issue of the Ocean News and Technology.  The article was a New Product Announcement for the Pop-Up Buoy Recovery System.

See a PDF of the printed article HERE

See the original announcement post HERE

About DeepWater Buoyancy, Inc.

DeepWater Buoyancy creates subsea buoyancy products for leading companies in the oceanographic, seismic, survey, military and offshore oil & gas markets.   Customers have relied on our products for over thirty years, from the ocean surface to depths exceeding six thousand meters.

Learn more at www.DeepWaterBuoyancy.com

IN PRINT – Don’t Let the Ocean Knock You Down

IN PRINT – Don’t Let the Ocean Knock You Down

Article

DeepWater Buoyancy was found In Print in the December Issue of the Marine Technology Reporter.  The article was called “Don’t Let the Ocean Knock You Down”.  Written by Dean Steinke of DSA, the article is a print version of the DeepWater Buoyancy Mooring Matters article, Mooring System Numerical Modeling.

In the article, Dean discusses the role of finite element-based simulation and visualization software in mooring design.

See a PDF of the printed article HERE

See the Mooring Matters post HERE

Watch the simulation video HERE

 

About DeepWater Buoyancy, Inc.

DeepWater Buoyancy creates subsea buoyancy products for leading companies in the oceanographic, seismic, survey, military and offshore oil & gas markets.   Customers have relied on our products for over thirty years, from the ocean surface to depths exceeding six thousand meters.

Learn more at www.DeepWaterBuoyancy.com

NEW Pop-Up Buoy Recovery System

NEW Pop-Up Buoy Recovery System

Announcement

DeepWater Buoyancy, Inc. announces that it has developed a Pop-Up Buoy Recovery System (PUB) and added it to their line of subsea buoyancy products. The PUB allows for direct retrieval of seabed packages, such as anchors, anchor lines, and bottom-mounted frames and instruments.

The new product was introduced in October at the 2017 Teledyne Marine Technology Workshop in San Diego, California.  It was well-received by representatives, distributors, partners, and end-users.

“We are excited to add the pop-up system to our product line,” said Dan Cote, Sales Manager.  “It gives our customers yet another buoyancy tool for deploying and recovering subsea equipment.”

Pop-Up Buoy Product Details

Easily mounted to any framework, the assembly sits on the seafloor until the acoustic release is activated. Once the release completes its disconnection, the buoy subassembly lifts free from the canister subassembly and rises to the surface. A synthetic line connects the buoy directly to the framework of the seabed item and allows for retrieval.

The standard recovery system is designed to work with both the legacy Teledyne Benthos 875 shallow water release, as well as the new R500 series release. Though this model is built specifically for the Teledyne Benthos acoustic releases, the company can also fit the design to releases from any manufacturer.

“This year Teledyne Benthos discontinued its long-standing product offering, the PUB-875,” explained David Capotosto, Director of Business Development. “This left our distributors and the end users in a supply dilemma.  We saw this change and the introduction of the new R500 release from Benthos as an opportunity to serve our clients and, at the same time, to improve the concept.  As with all DeepWater Buoyancy designs, the unit is thoughtfully designed and ruggedly-built for the offshore environment.”

Learn More

Learn more about the Pop-Up Buoy Recovery System HERE

See all our product types HERE

Download a datasheet HERE

Pop-Up Buoy Product Image

About DeepWater Buoyancy, Inc.

DeepWater Buoyancy creates subsea buoyancy products for leading companies in the oceanographic, seismic, survey, military and offshore oil & gas markets.   Customers have relied on our products for over thirty-five years, from the ocean surface to depths exceeding six thousand meters.

For further sales information:  Dan Cote, Sales Manager  |  sales@deepwb.com  |  +1 207 502 1400

For further company information:  David A. Capotosto |  davidcap@deepwb.com  |  +1 207 468 8545

 

Pop-Up Buoy with Syntactic Foam Collar removed showing Teledyne Benthos R500 Acoustic Release

PUB-875 PUB-R500 Benthos
PUB-875 PUB-R500 Benthos

 

Pop-Up Buoy Recovery System with Teledyne Benthos Acoustic Release installed.

PUB-875 PUB-R500 Benthos
PUB-875 PUB-R500 Benthos
Sponsoring the 2017 MTS Houston BBQ

Sponsoring the 2017 MTS Houston BBQ

Sponsoring

DeepWater Buoyancy is sponsoring the 2017 MTS Houston BBQ.  The event will take place on Thursday, October 26th at Seanic Ocean Systems in Katy, Texas.

The Event

The event is a great opportunity to network with MTS professionals in a relaxed atmosphere.  DeepWater Buoyancy’s Sales Manager, Dan Cote, will be available at an exhibit table to introduce guests to our product line or to discuss an application.  Dan will be joined by members of our Gulf Coast representative group Waters and David.

In addition to refreshments, a wonderful barbecue dinner, exhibits and social networking, there will also be door prizes and a silent auction. This is a great event and several hundred participants are expected. Bring along your colleagues and invite your clients ….spouses are also welcome.

Details

Location Click here for map

Seanic Ocean Systems
25310 Clay Road
Katy TX 77493

Learn more HERE

About MTS

The Marine Technology Society was incorporated in June 1963 to give members of academia, government and industry a common forum for the exchange of information and ideas. The guiding purpose is:

“To promote awareness, understanding, advancement and application of marine technology.”

Today, MTS is a growing organization, boasting a membership of businesses, institutions, individual professionals and students who are ocean engineers, technologists, policy makers and educators.

MTS Mission

  • Facilitate a broader understanding of the relevance of marine technology to wider global issues by enhancing the dissemination of marine technology information
  • Promote and improve marine technology and related educational programs
  • Advance the development of the tools and procedures required to explore, study and further the responsible and sustainable use of the oceans.

MTS’s long-range vision is to be:

“The leading authority and advocate for marine technology and resources while promoting member success and public understanding.”

 MTS Website

Exhibiting at 2017 Teledyne Marine Technology Workshop

Exhibiting at 2017 Teledyne Marine Technology Workshop

Exhibiting

DeepWater Buoyancy will be exhibiting at the 2017 Teledyne Marine Technology Workshop.

When: October 15-18, 2017
Where: Catamaran Resort, San Diego, CA USA

Summary

Teledyne Marine and DeepWater Buoyancy invite you to join us for the newly expanded Te​​ledyne Marine Technology Workshop in which speakers, influencers, and attendees from around the globe will converge to explore, learn, and share their experiences on a broad range of technologies.​ DeepWater Buoyancy team members will be on hand to discuss ways in which our product line works intimately with the Teledyne Marine products.

This three-day workshop, which is preceded by a full day of networking opportunities, will include customer presentations, product/software training, field service meetings, networking opportunities, and on-water demonstrations provided by Teledyne Marine’s top-tier oceanographic manufacturers.

Products

Products will range from: ADCPs, CTDs, DVLs, Imaging and Mapping Sonars and Software, Motion Sensors, Navigation Systems, AUVs, ROVs, Lights and Cameras, Modems, Gliders, Surface Vehicles, Interconnect Solutions – and more!

Morning sessions will be comprised of four concurrent tracks dedicated to presentations given by Teledyne users from around the globe, who will be sharing their experiences, challenges and solutions using Teledyne products in a wide array of application areas, including:

  • Offshore Energy
  • Oceanographic Research
  • Hydrography
  • Security / Defense
  • Civil Engineering, River/Stream Monitoring
  • Aquaculture / Fisheries​

Attendees are sure to glean new and helpful information from these sessions, not only from the speakers, but from the questions and answers, and interaction with their industry peers in these sessions.

Afternoon sessions are comprised of eight concurrent tracks covering Teledyne Marine product / software training, new product and application introductions, Q&As with Teledyne’s technical teams, dockside and on-water demonstrations, one-on-one meetings, and an opportunity to visit with our top-tier co-spons​​ors to discuss their third party solutions and services.

Learn More HERE

NEW Mooring Line Cable Fairing

NEW Mooring Line Cable Fairing

Introduction

DeepWater Buoyancy, Inc. has added a new product to their successful line of Mooring Line Cable Fairings.  The new fairing is designed to accommodate 1/4″ jacketed wire rope.  It is the latest item in the company’s portfolio of products for subsea mooring systems.

Vortex-induced Vibration

Under certain flow conditions, taut mooring lines can vibrate or “strum”. The strumming is caused by vortices that result from the water passing over the line diameter. Strumming not only creates cable fatigue, it can have a detrimental effect on instruments in the mooring string.

Mooring Line Cable Fairing

DeepWater Buoyancy’s mooring line cable fairings reduce strumming by eliminating this vortex action.  Less strumming means less fatigue on the line. Additionally, the fairing design reduces drag on the mooring line resulting in less mooring layover. As an example, the drag coefficient for a 3/8” jacketed wire cable is 1.20, whereas the mooring line fairing is 0.17. This is an improvement of over 85%.

Fairings are made of durable ABS plastic. They are easily loaded onto the mooring line during deployment simply by separating the ends of the fins and installing over the line.

Unlike other solutions, this product can be installed over select portions of the line, requires no maintenance, does not suffer from tangling problems, and resists biofouling.

The standard units are designed for 1/4″ and 3/8″ jacketed wire rope and are 12” in length. Other diameters and lengths can be produced upon request. End clamps are also available to limit the vertical movement of the fairing on the line.

Learn More

Learn more about mooring line cable fairings HERE

Download a datasheet HERE

See all our product types HERE

About DeepWater Buoyancy, Inc.

DeepWater Buoyancy creates subsea buoyancy products for leading companies in the oceanographic, seismic, survey, military and offshore oil & gas markets.   Customers have relied on our products for over thirty-five years, from the ocean surface to depths exceeding six thousand meters.

For further sales information:  Dan Cote, Sales Manager  |  sales@deepwb.com  |  +1 207 502 1400

For further company information:  David A. Capotosto |  davidcap@deepwb.com  |  +1 207 468 8545

DeepWater Buoyancy in MTR100

DeepWater Buoyancy in MTR100

Announcement

DeepWater Buoyancy has again been selected for the prestigious Marine Technology Reporter “MTR100”.  Marine Technology Reporter (MTR) magazine is the world’s largest audited circulation publication serving the global Marine Technology Market. This month, MTR released its 12th Annual Listing of 100 Leading Subsea Companies.

In his opening editorial, Gregory Trouthwein, MTRs Associate Producer and Editor, said, “This year we saw another record number of applicants from around the globe for inclusion in our annual innovation showcase. This year’s MTR100 features technologies from 13 countries and four continents…”  DeepWater Buoyancy is proud to be amongst a distinguished collection of companies that include: Teledyne Marine, General Dynamics, and Sonardyne International, to name just a few.

In addition to being selected, a short article about DeepWater Buoyancy was included in the publication.

MTR100 Article

DeepWater Buoyancy Inc. reports that it is the world’s largest producer of subsea buoyancy products for the oceanographic industry and has a vast product line of buoyancy solutions for offshore oil and gas, energy and technology companies. This product portfolio has been built over the course of 35 years serving these industries. Though products for shallow water applications are offered, the company specializes in deepwater, providing solutions to depths of 6,000 meters and beyond.

DeepWater Buoyancy’s headquarters and manufacturing operations are located in New England, the birthplace of syntactic foam. New England is also where David Cook formed Flotation Technologies (Flotec). Incorporated in 1979, Flotec grew into a recognized world leader in the manufacture of deepwater buoyancy products that included ADCP Buoys, distributed buoyancy modules and drilling riser buoyancy. Flotec was purchased in 2008 by a subsea equipment manufacturer.

In 2013, DeepWater Buoyancy acquired the rights and designs for the legacy Flotec material technology and products when its parent company was in the process of closing the New England facility. Since then, DeepWater Buoyancy has been producing, improving and growing the Flotec product line, which has been the industry standard for decades. DeepWater Buoyancy also stocks parts for these legacy products and provides design and application assistance.

At the heart of the DeepWater Buoyancy product line are the subsurface ADCP buoys. These buoys were originally developed for Teledyne RD Instruments’ ADCPs. Consisting primarily of both spherical and elliptical buoys, the product line also includes the unique StableMoor® Mooring Buoys. These torpedo-shaped buoys are engineered to house ADCPs and other sensors for high current data collection applications. By design, the StableMoor® reduces drag and increases mooring stability in extreme flow regimes, thereby producing superior data sets.

However, DeepWater Buoyancy’s product line goes well beyond ADCP buoys. In the oceanographic market there are bottom mounts, instrument collars, and cable floats. For offshore oil and gas, there are installation blocks, modular buoys, deepwater marker floats and ROV buoyancy. In addition to DeepTec® syntactic foam products and custom-engineered components, there are also polyurethane and fabricated metal products for use subsea.

Learn More

Download a copy of the MTR100 publication HERE

See the DeepWater Buoyancy product portfolio HERE

About DeepWater Buoyancy, Inc.

DeepWater Buoyancy creates subsea buoyancy products for leading companies in the oceanographic, seismic, survey, military and offshore oil & gas markets.   Customers have relied on our products for over thirty-five years, from the ocean surface to depths exceeding six thousand meters.

For further sales information:  Dan Cote, Sales Manager  |  sales@deepwb.com  |  +1 207 502 1400

For further company information:  David A. Capotosto |  davidcap@deepwb.com  |  +1 207 468 8545

We are Exhibiting at Oceans 17

We are Exhibiting at Oceans 17

DeepWater Buoyancy is exhibiting at the Oceans 17 conference in Anchorage Alaska. The conference begins on September 18th.

Visit Us

Please come visit us at Booth 716 and meet Dan Cote, Sales Manager.  Dan will be joined by Matthew Henry, DeepWater Buoyancy’s Plant Manager.

About the Conference

Every autumn, the Marine Technology Society and the IEEE Oceanic Engineering Society sponsor OCEANS, a prestigious conference/exhibition that draws an international audience of more than 2,000 attendees:

  • Over 500 professionally reviewed technical papers, including sessions focused on local themes.
  • Plenary sessions with leaders from industry, academia, the military and government.
  • 100+ exhibitors showcasing the latest innovations in products and services.
  • A student poster session featuring outstanding projects from around the world and other student activities.
  • Tutorials, workshops, demonstrations, government listening sessions, social/networking opportunities, professional field trips …and much, much more.

Learn More

More about the conference… oceans17mtsieeeanchorage.org

Send us an email to schedule a visit at the show… sales@deepwb.com

Representative Spotlight – Saderet Ltd. in the UK

Representative Spotlight – Saderet Ltd. in the UK

DeepWater Buoyancy has the finest international representative network for oceanographic subsea buoyancy.  What follows is the next in a series of articles on our representative groups.  This time we are highlighting our representative in the UK – Saderet.  Founded and still led by Andy Smith, Saderet is another of our representatives who have many years of experience integrating our buoyancy solutions into subsea moorings and structures. Saderet services our customers in this region from the National Oceanography Centre in Southampton to the Scottish Association for Marine Science in Scotland, in applications ranging from ADCP deployment to monitoring of aquaculture to support of offshore oil and gas operations.

Introduction

Since 1998 Saderet has successfully served the land and marine survey industry with leading products and solutions. Founded by Andrew Smith the company now employs 7 and is based in the Isle of Man. Geographically the company offers equipment worldwide with a particular emphasis on the UK, Europe including Eastern Europe, the Middle East and Russia.

The company specialises in representing manufacturers of complimentary equipment so that complete equipment packages can be provided from one source. An example of this is Deepwater Buoyancy whose sub-sea platforms are offered in tandem with oceanographic instruments also represented and supplied by Saderet.

Representation

In addition to Deepwater Buoyancy the company also represents the following offshore equipment manufacturers including:

  • Teledyne RDI Acoustic Doppler Current Profilers and associated oceanographic instruments including CTD’s.
  • Teledyne Odom single and multi-beam sounders for seabed mapping together with the associated speed of sound measurement systems.
  • Teledyne TSS gyro compasses, motion sensors and pipe/cable trackers.
  • Hemisphere GNSS. Saderet is the official HGNSS Distributor for Europe and the Middle East and has established a 45 strong dealer network to promote and support the navigation and heading systems product line. The company also offers OEM board level receivers and Saderet assists customers in the integration of these products into their own systems.
  • QPS software packages for hydrographic survey, dredging, rig moving and many other offshore engineering applications.
  • Edgetech acoustic release systems for subsea equipment recovery. Edgetech also offers side scan sonar and sub-bottom profiling systems for vessel towed or AUV/ROV mount.
  • Satel UHF and VHF radio modems for data telemetry, DGPS, RTK and vessel tracking applications such as rig moving operations.
  • Chesapeake Technology sub-bottom data acquisition and processing software for geotechnical studies including offshore site surveys.

Services

Saderet also supports clients with installation, technical support and training services as required. This is backed by factory trained engineers with many years of offshore industry experience. The company also offers first line repairs to keep customers operational, and some product lines are offered from stock to help with fast mobilisations.

Markets

Principle markets for the company include land and marine survey companies, harbours, container ports, universities, Government marine institutes, fish farms, OEM system integrators, dredging contractors, superyachts, racing yachts, marine archaeology, ROV and autonomous underwater/surface vehicles, pilotage, TV outside broadcast, precision agriculture, and fellow marine equipment suppliers and rental organisations.

Learn more about Saderet Ltd.

www.saderet.co.uk

About DeepWater Buoyancy, Inc.

DeepWater Buoyancy creates subsea buoyancy products for leading companies in the oceanographic, seismic, survey, military and offshore oil & gas markets.   Customers have relied on our products for over thirty-five years, from the ocean surface to depths exceeding six thousand meters.

www.DeepWaterBuoyancy.com

Saderet Office Isle of Man UK

Saderet offices on the Isle of Man.

Mooring Matters:  Mooring System Numerical Modeling

Mooring Matters: Mooring System Numerical Modeling

For the next installment in our series of technical articles, Dean Steinke of Dynamic Systems Analysis Ltd., discusses the role of finite element-based simulation and visualization software in mooring design. 

He demonstrates this capability with a video of the simulation showing an analysis of our three different ADCP buoy geometries – spherical, elliptical and the unique StableMoor® design.

 


Mooring System Numerical Modeling

“Don’t let the ocean knock you down.”

Using dynamic analysis software to assess mooring deployment, recovery, and performance in current and waves.
By Dean Steinke, PEng – April 5, 2017

Introduction

For many years moorings have been designed using basic mass-drag-buoyancy calculations, spreadsheets, rules-of-thumb, black magic scripts, and a dose of ‘salty-sea-dog’ experience. With these methods, we can frequently estimate a line size to use or an approximate anchor weight. But sometimes despite our experience we still have questions. This article looks at increasing the precision of mooring analyses using numerical modeling software designed for ocean engineers.

Software for single point moorings has come a long way in recent years. Finite element-based cable analysis programs have been tested and developed by oceanographic institutions and ocean engineers for various purposes (towed bodies, ROVs, moorings, etc.). However, their use has been typically limited to a few advanced numerical modelling specialists who had both the expertise and patience to wade through the complex analysis process. In recent years, increasingly-refined software has been developed. This software has benefited from increased computational power and advances in 3D graphics. We can now get a much clearer picture as to what is happening with our moorings subsurface through simulation and visualization.

The video below demonstrates an analysis carried out by my firm, Dynamic Systems Analysis Ltd, using our ProteusDS software. Based in Canada, we have cut our teeth over the last decade simulating many different types of ocean technologies, including single point moorings.

Analyzing Buoy Pitch and Knockdown in Current

The video shows four buoys of various styles (spherical, ellipsoid, and streamlined) being loaded by current. As the current ramps up to 3.6 knots, the knockdown and pitch of the buoys increase. There are two key forces at play – buoyancy and drag. The buoyancy provides a vertical restoring force that keeps the buoy from pitching. Conversely, hydrodynamic drag pitches the buoys about their mooring connection point.

A pitch of greater than 20 degrees is not recommended for ADCPs, as the inclinometers which allow for compensation of buoy pitch typically only have a range of 20 degrees. Mooring designers would try to limit ADCP buoy pitch to only a few degrees if possible. In addition to uplift and drag, buoy pitch also depends on the length of the mooring and weight of mooring equipment (chain, shackles, line, etc.).

The example shows that increased buoyancy is effective in preventing knockdown and limiting pitch, as the AF49-750 buoy has the lowest pitch and knockdown of the elliptical and spherical buoys. However, this buoy still pitches significantly at the higher currents, whereas the streamlined StableMoor® buoy, with its reduced drag and configurable connection point, is effective at maintaining low pitch and knockdown.

The ProteusDS model uses 6 degrees of freedom for the buoys (heave, sway, surge, roll, pitch, and yaw). Although this case is essentially 2D, the solver solves for the position in 3D. The effect of the attachment point and location of drag loading affect the pitch calculated by the software.

Figure 1 The ProteusDS software pre-processor is shown. This software allows users to add mooring elements such as shackles and swivels from a central library. Line types such as Amsteel Blue or wire rope can likewise be selected.

Transient Loading and Acoustic Release Damage During Mooring Deployment

One aspect not often considered by mooring designers is what happens during deployment. As shown in the video, the simulation allows for prediction of launch transients, which ensures that shackles and lines are properly selected to handle the deployment loads.

We’ve observed that acoustic releases get damaged during deployment when they are placed too close to the anchor. ProteusDS can be used to check that the acoustic release’s downward momentum will not cause it to crash into the seabed or anchor.

Mooring Systems ADCP Simulation

Figure 2 Mooring deployment analysis showing launch transient loading.

Mooring System Recovery

A few questions I’m asked from time to time are: How long will it take for the mooring to come to the surface? and, How far might the mooring drift as it comes to the surface? The mooring recovery section of the video shows how you can assess this.

In the case considered, the AF36-750 mooring rises at about 2.7 meters per second. If this mooring was deployed at 750 meters, it would take between 4 and 5 minutes to surface!

Although no current was applied in the example, current can be applied in the simulation to determine how far it might drift in the time it takes to get to the surface.

Mooring Systems ADCP Simulation

Figure 3 ProteusDS post-processing software showing rendered view of the mooring systems being tested.

Interaction of Waves with Subsurface Moorings

Much like current, waves can cause an ADCP mooring to pitch and move. The example in the video shows the impact of the subsurface orbital wave motion on the mooring line and buoy. A JONSWAP wave spectrum is simulated to check how much the buoy will pitch. Clearly, in this case, a bottom mounted ADCP frame would be preferred – but we don’t always have the equipment we need on hand. It’s good to have tools to check the impact of waves on our moorings.

Conclusions

DSA has carried out a series of simulations in consultation with DeepWater Buoyancy using our ProteusDS software. The software is designed to help mooring designers and builders to answer practical questions about mooring performance. Most would agree that the software’s 3D visualization capabilities shown in the video are really cool, but I believe that the real value of the software is that we don’t have to speculate what is happening subsea. We can now get a clear picture.


About Dynamic Systems Analysis Ltd.

Dynamic Systems Analysis Ltd. is an ocean engineering consultancy and software company based in Canada. DSA provides progressive and accessible dynamic analysis expertise and software to enable those working with vessels, structures, lines and technologies in harsh marine environments to reduce risk. DSA provides software and services to the aquaculture & fisheries, defence, marine renewable energy, naval architecture, ocean technology, and offshore sectors.

Learn more at www.dsa-ltd.ca

About DeepWater Buoyancy, Inc.

DeepWater Buoyancy creates subsea buoyancy products for leading companies in the oceanographic, seismic, survey, military and offshore oil & gas markets.   Customers have relied on our products for over thirty years, from the ocean surface to depths exceeding six thousand meters.

Learn more at www.DeepWaterBuoyancy.com

 

New Representative in Western Canada

New Representative in Western Canada

DeepWater Buoyancy, Inc. has announced today that it has entered into a distribution agreement with ASL Environmental Sciences, an oceanographic products and service company located in British Columbia, Canada. ASL will act as sales representative and distributor of the DeepWater Buoyancy oceanographic product line in British Columbia and Alberta, Canada, as well as in Alaska, USA.

ASL Environmental Sciences is a world class company with more than 35 years of experience in oceanographic, acoustic, remote sensing, and ice research products and scientific consulting services. Their products include the well-known, industry standard Ice Profiler, deployed in hundreds of locations world-wide.  They also provide clients with consulting services including: Flow Measurement, Numerical Modeling, Wave Measurement & Analysis, Sediment Transport and Ice Studies.

ASL is also a sales representative for Teledyne RD Instruments’ line of ADCP products in the same region. TRDI/ASL PR   DeepWater Buoyancy’s reliable ADCP deployment products (former Flotation Technologies designs) have supported Teledyne ADCPs for survey and research clients around the world for decades.

For more information go to:  www.aslenv.com

Or contact:

  • Ben Garrett | Oceanographic Services Scientist | Teledyne Marine Product Sales
  • Tel: +1 (250) 656 0177 x161
  • Cell: +1 (250) 661 9209
  • Fax: +1 (250) 656 2162
  • Email: bgarrett@aslenv.com
Exhibiting at U. S. Hydro 2017

Exhibiting at U. S. Hydro 2017

DeepWater Buoyancy is exhibiting at the U. S. Hydro 2017 conference in Galveston, Texas.  The conference begins on March 20th.

Visit Us

Please come visit us at Booth 41 and meet David Capotosto, Director of Business Development.  David will be joined by Chris Kelly.  Chris is from Waters and David, DeepWater Buoyancy’s Gulf Coast representative group.

About the conference…

The U.S. Hydro 2017 Conference, presented by The Hydrographic Society of America, will be held at the Moody Gardens Hotel: Spa, Golf Course and Convention Center in Galveston, TX on March 20 – 23, 2017.  U.S. Hydro 2017 is a continuation of the series of hydrographic conferences. This is the sixteenth U.S. Hydrographic conference and follows on the U.S. Hydro 2015, held in National Harbor, MD.  In addition to the technical papers, the conference will feature an extensive series of Workshops, social program, Exhibition Hall, and a Student Outreach program.

Learn more here… ushydro2017.com

Send us an email to schedule a visit with us at the show… sales@deepwb.com

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