Greenland News

Falcon fitted with multi-function manipulator in test tank. 
(Photo by Collin Dobson, Woods Hole Oceanographic Institution)

Saab Seaeye's Falcon for Ocean Research

provide real-time data access to address critical issues such as climate change, ecosystem variability, ocean acidification, and carbon cycling.  The observatory consists of:The Coastal & Global Scale Nodes (CGSN) which include sensor arrays moored off the coast of Massachusetts, Alaska, and Greenland, operated by the Woods Hole Oceanographic Institution,The Endurance Array (EA) off the coast of Oregon and Washington, operated by Oregon State University,The Regional Cabled Array (RCA), a submarine cable network of sensors and instruments, operated and managed by the University of Washington

Photo: KNUD E. HANSEN

Design Studies for Replacement of R/V DANA

2023.The following objectives have been prioritized:- Maximum capacity for hydro acoustic scientific performance- High efficiency in fish stock monitoring- High scientific multidisciplinary performance through versatile design- Year-round operation in North Sea and Baltics- Summer/ Autumn operation in Greenland and Polar waters- Low operational costsThe vessel is designed for class notation DNVGL ✠ 1A, SPS, EO, DYNPOS (AUTS), PC (6), and to comply with the ICES CRR 209 standard for low underwater radiated noise (URN) emission. In carrying out the design, the key design drivers and other design issues

Photo: Seamor Marine

SEAMOR: ROV to Last Ice Project in Canada

area which remains frozen year-round and take part in research and evaluating ways to protect this special ecological region.The High Arctic is an important area encompassing the northern regions of Canada (Arctic Basin, Baffin Bay and the Pikialasorsuaq, or North Water Polynya) and reaches to western Greenland. This area remains frozen throughout the year, for multiple years, acting as an important refuge for ice-dependent species such as polar bears, beluga and narwhal whales, walrus and seals, as well as the communities in these regions that rely on these species for food, dress and shelter. With estimates

Near the Bear Island, in the Svalbard archipelago, the INBIS channel kept its unique submarine relief during the Last Glacial Maximum (image: José Luis Casamor (GRC Marine Geosciences /University of Barcelona)

Researchers Study Unique Arctic Channel

Casamor said.Arctic: the domains of great ice currentsThe geological history of the Arctic Ocean revealed extreme episodes such as the Storegga Tsumani, the most spectacular submarine disaster known so far, which shook polar sea floors about 7,000 years ago. In the Fram Strait – a passage between Greenland and the Svalbard Islands – the Arctic cold waters mix with the Atlantic warm waters and create an exceptional situation to study the geological records of the natural climate change in the planet.Now, the northern polar waters – one of the most affected ecosystems by the effects of

Photo: Woods Hole Oceanographic Institution

Waters West of Europe Drive Ocean Overturning

, deep waters that return southward through the Iceland and Irminger basins. In a departure from the prevailing scientific view, the study shows that most of the conversion from warm to cold water—or ‘overturning’ and its month-to-month variability—is occurring in regions between Greenland and Scotland, rather than in the Labrador Sea off Canada, as many past modeling studies have suggested.Overturning variability in this northeastern section of the North Atlantic was seven times greater than in the Labrador Sea, and it accounted for 88 percent of the total variance documented across

© Ivan Kurmyshov / Adobe Stock

The Oceans Are Warming Faster than Expected

effects, extra warmth can reduce oxygen in the oceans and damages coral reefs that are nurseries for fish, the scientists said. Warmer seas release more moisture that can stoke more powerful storms.Warmer ocean water also raises sea levels by melting ice, including around the edges of Antarctica and Greenland.(Reporting By Alister Doyle; editing by John Stonestreet

Fig. 1: Teledyne RDI ADCP attached to a hydrographic package before lowering to great depths. Credit: J. Lemus (U. Hawaii). https://goo.gl/VfvYn1

Full-Depth Current Profiling Around the Global Ocean

was 120 km wide and had stable spatial structure. The volume of deep water exported southward was 30 million cubic meters per second—about the same as transport through the Florida Straits to supply the Gulf Stream.Fig. 6: Hydrographic package with dual Teledyne RDI ADCPs (yellow) in action off Greenland. Credit: C. Nobre (WHOI). https://goo.gl/HJLq5mOcean-Wide SectionsAn ongoing multi-year, international research initiative is titled Overturning in the Subpolar N. Atlantic Program (OSNAP). Working across the width of the Atlantic at high northern latitudes, OSNAP includes many researchers with

Photo: ASL Environmental Sciences

Sea Level Variation Study Using GPS and an Ice Profiling Sonar

Dr. David Holland of New York University, in collaboration with Dr. Natalya Gomez at McGill University, is leading an investigation of sea level variations in the Disko Bay region of western Greenland.  A shore-based system compares the direct arrival of GPS signals to the signals reflected off the sea surface to obtain sea level. The presence of sea ice and icebergs complicate the measurements. A shore-mounted camera provides information about the surroundings and the presence of sea ice and icebergs when there is daylight.  Underwater sonar devices can supplement the camera-based

The research vessel Neil Armstrong arrived to recover a surface mooring that is part of the OOI Global Array in the Irminger Sea south of Greenland in 2016. (Photo by James Kuo, Woods Hole Oceanographic Institution)

NSF Awards Contract to Continue Ocean Observatories Initiative

our planet. All OOI data are freely available online.Each institution will continue to operate and maintain the portion of OOI assets for which it is currently responsible: WHOI will operate the Pioneer Array off the Northeast U.S. coast and the Global Arrays in the Irminger Sea off the southern tip of Greenland and at Station Papa in the Gulf of Alaska; UW will operate the Regional Cabled Array that extends across the Juan de Fuca tectonic plate and overlying ocean; OSU will operate the Endurance Array off the coast of Washington and Oregon; and Rutgers will operate the cyberinfrastructure system that

Denmark’s GST Selects New Depth Management System

as the new system for Depth Data Management for current and future needs. The robust system will help increase efficiencies in data management and optimize the maritime production chain, from survey to chart.GST is responsible for surveying and charting the waters around Denmark, the Faroe Islands and Greenland to ensure safe passage at sea, in accordance with international standards and conventions. The project to implement BDB will include deployment of software and migration of existing data. Implementation of the new system is scheduled to begin mid-September 2018, with completion in the spring of

Marine Technology Magazine Cover Jul 2019 - MTR White Papers: Hydrographic

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