Movatterモバイル変換

[0]ホーム

Jump to content

West Greenland Current

Edit links

From Wikipedia, the free encyclopedia

Weak cold water current that flows to the north along the west coast of Greenland

The West Greenland Current, south ofDisko Island, leaves the western coast of Greenland free from ice, making it suitable for human settlements

TheWest Greenland Current (WGC) is a weak cold watercurrent that flows to the north along the west coast ofGreenland. The current results from the movement of water flowing around the southernmost point of Greenland caused by theEast Greenland Current.

According to Lloyd et al., 2007, the WGC is a WARM current connected to a broader scale North Atlantic climate via the combined influences of Atlantic water from theIrminger Current (IC) and polar water from the East Greenland Current.^[1]

Paleoclimatology records derived fromforaminifera abundance show that periodic influxes of warmsubsurface temperatures and near-bottom temperatures occurred throughout the LateHolocene epoch, particularly during theHolocene climatic optimum. The increased flow from the nearby East Greenland Current was associated with increased glacialiceberg calving from the largeJacobshavn Isbræ glacial outlet within the westernGreenland Ice Sheet, causing rapid melting and destabilization events. Following theNeoglaciation, the Jacobshavn outlet formed a floatingice tongue around 2000 years before present.^[2]

References

[edit]

^Source: Lloyd, J., Kuijpers, A., Long, A., Moros, M., and Park, L. 2007. Foraminiferal reconstruction of mid- to late Holocene ocean circulation and climate variability in Disko, Bugt, West Greenland. The Holocene: 17: 1079-1091.
^Andresen, Camilla S.; McCarthy, David J.; Dylmer, Christian Valdemar; Seidenkrantz, Marit-Solveig; Kuijpers, Antoon; Lloyd, Jerry M. (27 September 2010)."Interaction between subsurface ocean waters and calving of the Jakobshavn Isbræ during the late Holocene"(PDF).The Holocene.21 (2):221–224.doi:10.1177/0959683610378877.S2CID 55970768.

Ocean currents andgyres

Currents

Arctic Ocean	East Greenland North Icelandic Norwegian Transpolar Drift Stream
Atlantic Ocean	Angola Antilles Azores Baffin Island Benguela Brazil Canary Cape Horn Caribbean East Greenland East Iceland Falkland Florida Guinea Gulf Stream Irminger Labrador Lomonosov Loop North Atlantic North Brazil North Equatorial Norwegian Portugal South Atlantic South Equatorial West Greenland West Spitsbergen
Indian Ocean	Agulhas Agulhas Return East Madagascar Equatorial Counter Indian Monsoon Indonesian Throughflow Leeuwin Madagascar Mozambique North Madagascar Somali South Equatorial West Australian
Pacific Ocean	Alaska Aleutian California Cromwell Davidson East Australian East Korea Warm Equatorial Counter Humboldt Indonesian Throughflow Kamchatka Kuroshio Mindanao North Equatorial North Korea Cold North Pacific Oyashio South Equatorial Tasman Front
Southern Ocean	Antarctic Circumpolar Tasman Outflow

Gyres

Major gyres	Indian Ocean Gyre North Atlantic Gyre South Atlantic Gyre North Pacific Gyre South Pacific Gyre
Other gyres	Beaufort Gyre Ross Gyre Weddell Gyre