This is NOAA’s Plan for Deep Ocean Mapping of US Waters

Identifying and Filling Gaps in Bathymetric Coverage Deeper Than 200m
NOAA is using a systematic approach to map all US waters in support of Seabed 2030 objectives and to contribute to the complete mapping of the world’s oceans in the next ten years. Mapping within US waters is a national goal that will only be accomplished through strong coordination and partnerships with other federal agencies, academia and the private sector. The Nippon Foundation - General Bathymetric Chart of the Oceans (GEBCO) Seabed 2030 project has revitalized international and national interest in ocean floor mapping (Smith, 2018). Across US oceans, coasts, and Great Lakes waters, the National Oceanic and Atmospheric Administration... (read more)
2020-06-02 08:59:56

Scientific Challenges in a Crucial Region for Planet Earth

Remote, Frozen, Critical and Changing: the Weddell Sea
Located in the Atlantic sector of the Southern Ocean, the Weddell Sea generates extremely dense bottom water that spreads into all the world’s ocean basins, transporting oxygen, CO2 and other solutes. Everything that is added here is transferred into the abyssal oceans, including anthropogenic CO2. However, changes are taking place in the Weddell region that will have an impact on other oceans and on the global climate. The Weddell Sea (Figure 1) is a huge embayment between the Antarctic Peninsula and the Antarctic continent, situated at the southern edge of the Atlantic Ocean. The boundary of the Weddell Sea to... (read more)
2020-05-26 08:28:56

Dutch Survey Company Selects Sea Machines Autonomy for Unmanned Hydrographic Survey Operations

Underwater survey company Deep will upgrade one of its survey vessels with a Sea Machines SM300 autonomous control system. The Sea Machines system enables remote command of the vessel, including navigation and positioning, the control of on-board auxiliaries and sensors, and ship-to-shore data flow. The vessel, operating in multiple areas of the Wadden Sea, will be commanded by personnel in the Amsterdam office. Deep will initially deploy the Sea Machines-enabled vessel for a mission to survey the Wadden Sea, a challenging shallow body of water with tidal flats and wetlands located north of the Netherlands. With no surveyors on board the vessel... (read more)
2020-05-25 11:06:30

Fugro Starts NOAA Project to Update Florida’s Nautical Charts

Fugro has begun work on its first task order under a recently awarded multi-year hydrographic services contract with the US National Oceanic and Atmospheric Administration (NOAA). Located off the north-west coast of Florida, the project involves the acquisition of high-resolution bathymetry data over four sites totalling approximately 1,475 km2. Deliverables will be issued to NOAA by December and they will use this information to update charted depths and features in the region, many of which predate the 1950s. To streamline the data collection, Fugro will deploy its new FAS-900 unmanned surface vessel (USV) as a force multiplier on the project.... (read more)
2020-05-20 02:22:36

Research Expedition to Map Scottish Seabed

Slow Recovery of Coral Reef Shows Impact of Bottom Trawling
Newly developed 3D imaging technology has allowed scientists to map Darwin Mounds, a unique area of cold-water coral reefs off the coast of Scotland, to see whether it has recovered since being declared a Marine Protected Area sixteen years ago. The images show that in areas of the Darwin Mounds that had been heavily trawled, coral growth is still very sparse, and there has been no real recolonization. However, healthy coral growth was found in parts that had only been minimally damaged by bottom trawling, indicating that marine conservation measures are most effective when they are put in place before damage occurs.... (read more)
2020-05-18 01:46:12

TDI-Brooks Completes Multibeam Phase for TGS Offshore Nigeria

TDI-Brooks International (under contract to TGS) has completed the offshore multibeam phase offshore the Niger Delta. This survey took place in water depths of 750 to 3,500 metres and is Nigeria’s first regional multi-client Multibeam and Seafloor Sampling (MB&SS) study. TDI-Brooks’ R/V Gyre acquired 82,000 square kilometres of high-resolution hull-mounted multibeam echo sounder data. During the multibeam data collection, a total of 1,223 active hydrocarbon seeps were detected in the multibeam water column data. Onboard hydrocarbon seep analysis was conducted in near real-time onboard the vessel to expedite the process of core selection. The Gyre is fitted with an EM302 MBES... (read more)
2020-05-18 10:49:00

EvoLogics Modems Now Authorized for US Navy Use

EvoLogics underwater acoustic modems were recently listed as Authorized for Navy Use (ANU), following a lengthy period of testing and technical evaluation by Naval Sea Systems Command (NAVSEA) and the Emergency Ship Salvage Material (ESSM) system. The ANU programme provides a list of selected diving equipment, tools and accessories that have undergone design safety reviews, testing and evaluation to ensure diver safety and acceptability. Engineers at ESSM who conducted the testing of the EvoLogics 18/34 kHz USBL modem system concluded “the system to be more accurate than our ability to physically measure the angle and distances between the USBL and... (read more)
2020-05-14 11:34:45

NOAA Certifies San Francisco Bay Shipping Channel with Top Surveying Rating

There is a risk factor when navigating in and out of the busiest ports in the US, particularly at the helm of some of the world’s largest deep draft vessels. Mariners rely on tide and water level information, wind and weather data, but perhaps most importantly, they rely on electronic navigational charts and the quality of depth measurements that comprise them. Recently, NOAA’s Office of Coast Survey certified the US Army Corps of Engineers (USACE) hydrographic surveys for the Pinole Shoal Channel in San Francisco Bay. The Pinole Shoal Channel – a critical waterway for bulk carriers and tankers to... (read more)
2020-05-11 02:29:29

Dutch Flood Defence, the Natural Way

When the Dutch government and research institutions wanted to monitor how waves and currents would affect the pioneering use of artificial sand banks to protect a levee in a non-tidal freshwater system, Nortek was selected to supply key measuring instruments and set up the data telemetry system. The Houtribdijk is a 25km-long levee, or dike, separating two large artificial lakes, the IJsselmeer and the Markermeer. The lakes and accompanying levees protect the Netherlands from the forces of the North Sea’s extreme weather events, and from flooding from inland freshwater river systems. After years of exposure to the elements, the Houtribdijk... (read more)
2020-05-07 03:17:31

ASL Environmental Sciences Assists with Oceanographic Data Collection for Labrador Marine Research and Monitoring

In a collaborative effort with the Nunatsiavut government and Dalhousie University to measure ice, water current and other physical and biological properties of the marine environment, ASL Environmental Sciences Inc. contributed a prototype Log Ice Profiling Sonar (LogIPS). On 15 February, the sonar was deployed on a taut-line mooring in the waters off Nain, Nunatsiavut, Labrador, Canada. The mooring also contained an acoustic doppler current profiler (ADCP), as well as data loggers for chlorophyll, turbidity, temperature-salinity and dissolved oxygen. The mooring was deployed through a hole cut in the sea ice, with an open-water recovery planned for later this year. The... (read more)
2020-05-07 01:43:35
Search Filter