Atmospheric controlled freshwater release at the Laptev Sea continental margin
Considerable interannual differences were observed in river water and sea-ice meltwater inventory values derived from δ18O and salinity data in the Eurasian Basin along the continental margin of the Laptev Sea in the summers of 1993 and 1995, and in the summers of 2005 and 2006 during Nan...
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Norwegian Polar Institute
2011
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ftdoajarticles:oai:doaj.org/article:72ccc2bcca024e49b94f1632965cb833 2023-05-15T14:58:42+02:00 Atmospheric controlled freshwater release at the Laptev Sea continental margin Dorothea Bauch Matthias Gröger Igor Dmitrenko Jens Hölemann Sergey Kirillov Andreas Mackensen Ekatarina Taldenkova Nils Andersen 2011-01-01T00:00:00Z https://doi.org/10.3402/polar.v30i0.5858 https://doaj.org/article/72ccc2bcca024e49b94f1632965cb833 EN eng Norwegian Polar Institute http://www.polarresearch.net/index.php/polar/article/view/5858/pdf_77 https://doaj.org/toc/0800-0395 https://doaj.org/toc/1751-8369 doi:10.3402/polar.v30i0.5858 0800-0395 1751-8369 https://doaj.org/article/72ccc2bcca024e49b94f1632965cb833 Polar Research, Vol 30, Iss 0, Pp 1-14 (2011) Arctic Ocean halocline atmospheric forcing Laptev Sea stable isotopes water masses Environmental sciences GE1-350 Oceanography GC1-1581 article 2011 ftdoajarticles https://doi.org/10.3402/polar.v30i0.5858 2022-12-31T08:52:05Z Considerable interannual differences were observed in river water and sea-ice meltwater inventory values derived from δ18O and salinity data in the Eurasian Basin along the continental margin of the Laptev Sea in the summers of 1993 and 1995, and in the summers of 2005 and 2006 during Nansen and Amundsen Basins Observational system (NABOS) expeditions. The annually different pattern in river and sea-ice meltwater inventories remain closely linked for all of the years studied, which indicates that source regions and transport mechanisms for both river water and sea-ice formation are largely similar over the relatively shallow Laptev Sea Shelf. A simple Ekman trajectory model for surface Lagrangian particles based solely on wind forcing can explain the main features observed between years with significantly different wind patterns and vorticities, and can also explain differences in river water distributions observed for years with a generally similar offshore wind setting. An index based on this simplified trajectory model is rather similar to the vorticity index, but reflects the hydrology on the shelf better for distinctive years. This index is not correlated with the Arctic Oscillation, but rather with a local mode of oscillation, which controls the outflow and distribution of the Eurasian Basin major freshwater source on an annual timescale. Article in Journal/Newspaper Arctic Arctic Ocean laptev Laptev Sea Polar Research Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Laptev Sea Polar Research 30 1 5858 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic Ocean halocline atmospheric forcing Laptev Sea stable isotopes water masses Environmental sciences GE1-350 Oceanography GC1-1581 |
spellingShingle |
Arctic Ocean halocline atmospheric forcing Laptev Sea stable isotopes water masses Environmental sciences GE1-350 Oceanography GC1-1581 Dorothea Bauch Matthias Gröger Igor Dmitrenko Jens Hölemann Sergey Kirillov Andreas Mackensen Ekatarina Taldenkova Nils Andersen Atmospheric controlled freshwater release at the Laptev Sea continental margin |
topic_facet |
Arctic Ocean halocline atmospheric forcing Laptev Sea stable isotopes water masses Environmental sciences GE1-350 Oceanography GC1-1581 |
description |
Considerable interannual differences were observed in river water and sea-ice meltwater inventory values derived from δ18O and salinity data in the Eurasian Basin along the continental margin of the Laptev Sea in the summers of 1993 and 1995, and in the summers of 2005 and 2006 during Nansen and Amundsen Basins Observational system (NABOS) expeditions. The annually different pattern in river and sea-ice meltwater inventories remain closely linked for all of the years studied, which indicates that source regions and transport mechanisms for both river water and sea-ice formation are largely similar over the relatively shallow Laptev Sea Shelf. A simple Ekman trajectory model for surface Lagrangian particles based solely on wind forcing can explain the main features observed between years with significantly different wind patterns and vorticities, and can also explain differences in river water distributions observed for years with a generally similar offshore wind setting. An index based on this simplified trajectory model is rather similar to the vorticity index, but reflects the hydrology on the shelf better for distinctive years. This index is not correlated with the Arctic Oscillation, but rather with a local mode of oscillation, which controls the outflow and distribution of the Eurasian Basin major freshwater source on an annual timescale. |
format |
Article in Journal/Newspaper |
author |
Dorothea Bauch Matthias Gröger Igor Dmitrenko Jens Hölemann Sergey Kirillov Andreas Mackensen Ekatarina Taldenkova Nils Andersen |
author_facet |
Dorothea Bauch Matthias Gröger Igor Dmitrenko Jens Hölemann Sergey Kirillov Andreas Mackensen Ekatarina Taldenkova Nils Andersen |
author_sort |
Dorothea Bauch |
title |
Atmospheric controlled freshwater release at the Laptev Sea continental margin |
title_short |
Atmospheric controlled freshwater release at the Laptev Sea continental margin |
title_full |
Atmospheric controlled freshwater release at the Laptev Sea continental margin |
title_fullStr |
Atmospheric controlled freshwater release at the Laptev Sea continental margin |
title_full_unstemmed |
Atmospheric controlled freshwater release at the Laptev Sea continental margin |
title_sort |
atmospheric controlled freshwater release at the laptev sea continental margin |
publisher |
Norwegian Polar Institute |
publishDate |
2011 |
url |
https://doi.org/10.3402/polar.v30i0.5858 https://doaj.org/article/72ccc2bcca024e49b94f1632965cb833 |
geographic |
Arctic Arctic Ocean Laptev Sea |
geographic_facet |
Arctic Arctic Ocean Laptev Sea |
genre |
Arctic Arctic Ocean laptev Laptev Sea Polar Research Sea ice |
genre_facet |
Arctic Arctic Ocean laptev Laptev Sea Polar Research Sea ice |
op_source |
Polar Research, Vol 30, Iss 0, Pp 1-14 (2011) |
op_relation |
http://www.polarresearch.net/index.php/polar/article/view/5858/pdf_77 https://doaj.org/toc/0800-0395 https://doaj.org/toc/1751-8369 doi:10.3402/polar.v30i0.5858 0800-0395 1751-8369 https://doaj.org/article/72ccc2bcca024e49b94f1632965cb833 |
op_doi |
https://doi.org/10.3402/polar.v30i0.5858 |
container_title |
Polar Research |
container_volume |
30 |
container_issue |
1 |
container_start_page |
5858 |
_version_ |
1766330831351054336 |