The Beaufort Gyre Freshwater Experiment (BGFE) observational program was designed to measure the freshwater content of the upper ocean and sea ice in the Beaufort Gyre of the Arctic Ocean using bottom-tethered moorings, drifting buoys, and hydrographic stations. The mooring program required the development of a safe and efficient deployment method by which the subsurface system could be deployed in waters surrounded by sea ice. This report documents the mooring procedure used to deploy the three BGFE moorings from the CCGS Louis S. St- Laurent, during the Joint Western Arctic Climate Study 2003 (August 6 September 7). The technical details of the instrumentation attached to each mooring and the specific deployment parameters are described. Specifics pertaining to the deployment of four surface-tethered drifters in the ice are also documented.
|Statement||W. Ostrom ... [et al.].|
|Series||WHOI -- 2004-01., Technical report / Woods Hole Oceanographic Institution, WHOI (Series) -- 2004-01., Technical report (Woods Hole Oceanographic Institution)|
|Contributions||Ostrom, W., Woods Hole Oceanographic Institution.|
|The Physical Object|
|Pagination||iii, 29 leaves :|
|Number of Pages||29|
32The Beaufort Gyre (BG) is the largest freshwater reservoir of the Arctic Ocean. 33Because of the potential impact of the Arctic freshwater on the large scale ocean 34circulation and climate [Aagaard et al., ], understanding the freshwater dynamics 35of the BG region has drawn much attention in the scientic community for decades. The Beaufort Gyre Freshwater Experiment (BGFE) observational program was designed to measure the freshwater content of the upper ocean and sea ice in the Beaufort Gyre of the Arctic Ocean using bottom-tethered moorings, drifting buoys, and hydrographic stations. Arctic liquid freshwater is stored predominantly in the Canadian Basin (Figure 1 basemap), in particular in the Beaufort Gyre. The Beaufort Gyre is thought to be driven by a balance between the stress from anticyclonic winds encircling the Beaufort High in sea level pressure and ocean eddies (see, for instance, Manucharyan et al., ).Author: Thomas W. N. Haine. The volume of freshwater in the Beaufort Gyre is close to the volume of fresh water in Lake Baikal, Siberia (23, km3), the largest freshwater lake by volume in the world and is comparable with fresh Freshwater Content (m) S ref = , from the GDEM climatology water volume stored in all Great Lakes (23, km3). The Beaufort Gyre freshwater.
Andrey Proshutinsky of Woods Hole Oceanographic Institute is the principle investigator for the Beaufort Gyre Freshwater Experiment: A study of fresh water accumulation and release mechanism and a role of fresh water in Arctic climate variability. The Beaufort Gyre (BG) is the largest freshwater reservoir of the Arctic Ocean. Because of the potential impact of the Arctic freshwateron the large-scale ocean circulation and climate (Aagaard et al. ), under-standing the freshwater dynamics of the BG region has . The Beaufort Gyre is a massive wind-driven current in the Arctic Ocean. The region has been regulating climate and sea ice formation at the top of the world for millennia. Recently, however, something has gone amiss. The Beaufort Gyre is a wind-driven circulation system that traps and pushes freshwater and ice around the Arctic Ocean. Due to this decades-long decline of the Arctic’s summertime ice cover, the Beaufort Gyre is more exposed to the wind, which has spun the gyre faster, trapping the fresh water in its current, the.
Beaufort Gyre Freshwater Tracer Experiment The Beaufort Gyre has over the past decade increased its freshwater storage (Proshutinsky et al., ). A tracer experiment has recently been proposed to NSF to release dye markers in the center of the Gyre to determine downwelling rates and . The circular current, called the Beaufort Gyre, moves in a clockwise direction around the western Arctic Ocean, north of Canada and Alaska, where it naturally collects freshwater from glacial melt. Beaufort Gyre Freshwater Experiment (WHOI) Andrey Proshutinsky of Woods Hole Oceanographic Institute is the principle investigator for the Beaufort Gyre Freshwater Experiment: A study of fresh water accumulation and release mechanism and a role of fresh water in Arctic climate variability. Figure 1 Beaufort Gyre Observing System (BGOS). Climatology of Arctic Ocean Left: freshwater content (FWC, m, colors). Solid lines depict summer – mean salinity at 50 m.