Intense nutrient removal in the remote area off Larsen Ice Shelf (Weddell Sea)
Using Weddell Sea data collected during a cruise with "FS Polarstern" in austral summer 1992/1993, depletions of nutrients and TCO2 in the summer surface layer were calculated. Also the analogous depletion-like properties for temperature (Heat Storage) and salinity were computed. The latte...
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ftawi:oai:epic.awi.de:1431 2024-09-15T17:43:13+00:00 Intense nutrient removal in the remote area off Larsen Ice Shelf (Weddell Sea) Hoppema, Mario Goeyens, L. Fahrbach, Eberhard 2000 https://epic.awi.de/id/eprint/1431/ https://hdl.handle.net/10013/epic.12022 unknown Hoppema, M. orcid:0000-0002-2326-619X , Goeyens, L. and Fahrbach, E. (2000) Intense nutrient removal in the remote area off Larsen Ice Shelf (Weddell Sea) , Polar Biology, 23 , pp. 85-94 . hdl:10013/epic.12022 EPIC3Polar Biology, 23, pp. 85-94 Article isiRev 2000 ftawi 2024-06-24T03:53:34Z Using Weddell Sea data collected during a cruise with "FS Polarstern" in austral summer 1992/1993, depletions of nutrients and TCO2 in the summer surface layer were calculated. Also the analogous depletion-like properties for temperature (Heat Storage) and salinity were computed. The latter properties are useful to describe the physical conditions over the time period pertinent to the depletions. For different areas a strong correlation exists of the Heat Storage and the nutrient/TCO2 depletions, which is caused by a common factor, the period of light availability. Offshore of the Larsen shelf, an area usually inaccessible due to perennial ice cover, high nutrients/TCO2 depletions are achieved in a short period of time, pointing to a rapidly producing biological system. Primary productivity, calculated from the TCO2 depletion, amounts to about 100 mg C m-2 d-1 for the central Weddell Sea, but 570-1140 mg C m-2 d-1 for the offshore Larsen region. These values agree fairly well with the open ocean Antarctic and other coastal areas, respectively. Article in Journal/Newspaper Antarc* Antarctic Ice Shelf Larsen Ice Shelf Polar Biology Weddell Sea Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Using Weddell Sea data collected during a cruise with "FS Polarstern" in austral summer 1992/1993, depletions of nutrients and TCO2 in the summer surface layer were calculated. Also the analogous depletion-like properties for temperature (Heat Storage) and salinity were computed. The latter properties are useful to describe the physical conditions over the time period pertinent to the depletions. For different areas a strong correlation exists of the Heat Storage and the nutrient/TCO2 depletions, which is caused by a common factor, the period of light availability. Offshore of the Larsen shelf, an area usually inaccessible due to perennial ice cover, high nutrients/TCO2 depletions are achieved in a short period of time, pointing to a rapidly producing biological system. Primary productivity, calculated from the TCO2 depletion, amounts to about 100 mg C m-2 d-1 for the central Weddell Sea, but 570-1140 mg C m-2 d-1 for the offshore Larsen region. These values agree fairly well with the open ocean Antarctic and other coastal areas, respectively. |
format |
Article in Journal/Newspaper |
author |
Hoppema, Mario Goeyens, L. Fahrbach, Eberhard |
spellingShingle |
Hoppema, Mario Goeyens, L. Fahrbach, Eberhard Intense nutrient removal in the remote area off Larsen Ice Shelf (Weddell Sea) |
author_facet |
Hoppema, Mario Goeyens, L. Fahrbach, Eberhard |
author_sort |
Hoppema, Mario |
title |
Intense nutrient removal in the remote area off Larsen Ice Shelf (Weddell Sea) |
title_short |
Intense nutrient removal in the remote area off Larsen Ice Shelf (Weddell Sea) |
title_full |
Intense nutrient removal in the remote area off Larsen Ice Shelf (Weddell Sea) |
title_fullStr |
Intense nutrient removal in the remote area off Larsen Ice Shelf (Weddell Sea) |
title_full_unstemmed |
Intense nutrient removal in the remote area off Larsen Ice Shelf (Weddell Sea) |
title_sort |
intense nutrient removal in the remote area off larsen ice shelf (weddell sea) |
publishDate |
2000 |
url |
https://epic.awi.de/id/eprint/1431/ https://hdl.handle.net/10013/epic.12022 |
genre |
Antarc* Antarctic Ice Shelf Larsen Ice Shelf Polar Biology Weddell Sea |
genre_facet |
Antarc* Antarctic Ice Shelf Larsen Ice Shelf Polar Biology Weddell Sea |
op_source |
EPIC3Polar Biology, 23, pp. 85-94 |
op_relation |
Hoppema, M. orcid:0000-0002-2326-619X , Goeyens, L. and Fahrbach, E. (2000) Intense nutrient removal in the remote area off Larsen Ice Shelf (Weddell Sea) , Polar Biology, 23 , pp. 85-94 . hdl:10013/epic.12022 |
_version_ |
1810490086178947072 |