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Please use this identifier to cite or link to this item:
http://hdl.handle.net/1956/613
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| Title: | Warming of the deep water in the Weddell Sea along the Greenwich meridian: 1977-2001 |
| Authors: | Smedsrud, Lars Henrik |
| Issue Date: | 7-Jan-2005 |
| Publisher: | Elsevier |
| Citation: | doi:10.1016/j.dsr.2004.10.004 |
| Series/Report no.: | Deep-Sea Research;Part I |
| Abstract: | The Weddell Deep Water (WDW) warmed substantially along the Greenwich meridian following the Weddell Polynya of the 1970s. Areas affected by the polynya contained 14 GJ/m2 more heat in 2001 than in 1977. This warming would require a flux of 390 W/m2 if it were to take place over a year. Large variations in heat content of the WDW are found between the Antarctic coast and Maud Rise (64°S). The small variation found north of Maud Rise is opposite in phase to that to the south, and the warming was close to monotonic south of 68°S. The mean warming of WDW along the section is 0.032 °C per decade, comparable to the warming of the Antarctic Circumpolar Current. The mean warming compares with a surface heat flux of 4 W/m2 over the 25 year period, an order of magnitude higher than the warming of the global ocean. As variation in mean salinity of the WDW follows the warming/cooling events, variation in inflow probably explains a cooling event between 1984 and 1989, and a warming event between 1... |
| URI: | http://hdl.handle.net/1956/613 |
| ISSN: | 0967-0637 |
| Appears in Collections: | Eprints by the Geophysical Institute
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| Smedsrud2.pdf | 885Kb | Adobe PDF | View/Open |
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