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 d18O 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 Amu...
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ftjpolarres:oai:journals.openacademia.net:article/3067 2023-05-15T14:54:19+02:00 Atmospheric controlled freshwater release at the Laptev Sea continental margin Bauch, Dorothea Gröger, Matthias Dmitrenko, Igor Hölemann, Jens Kirillov, Sergey Mackensen, Andreas Taldenkova, Ekatarina Andersen, Nils 2010-12-31 application/pdf text/html application/epub+zip text/xml https://polarresearch.net/index.php/polar/article/view/3067 https://doi.org/10.3402/polar.v30i0.5858 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/3067/pdf_77 https://polarresearch.net/index.php/polar/article/view/3067/html_75 https://polarresearch.net/index.php/polar/article/view/3067/6977 https://polarresearch.net/index.php/polar/article/view/3067/xml_75 https://polarresearch.net/index.php/polar/article/view/3067 doi:10.3402/polar.v30i0.5858 Copyright (c) 2018 Polar Research Polar Research; Vol 30 (2011) 1751-8369 Arctic Ocean halocline atmospheric forcing Laptev Sea stable isotopes water masses info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 2010 ftjpolarres https://doi.org/10.3402/polar.v30i0.5858 2021-11-11T19:13:37Z Considerable interannual differences were observed in river water and sea-ice meltwater inventory values derived from d18O 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. Keywords: Arctic Ocean halocline; atmospheric forcing; Laptev Sea; stable isotopes; water masses. (Published: 1 January 2011) Citation: Polar Research 2011, 30: 5858 - DOI:10.3402/polar.v30i0.5858 Article in Journal/Newspaper Arctic Arctic Ocean laptev Laptev Sea Polar Research Sea ice Polar Research (E-Journal) Arctic Arctic Ocean Laptev Sea Polar Research 30 1 5858 |
institution |
Open Polar |
collection |
Polar Research (E-Journal) |
op_collection_id |
ftjpolarres |
language |
English |
topic |
Arctic Ocean halocline atmospheric forcing Laptev Sea stable isotopes water masses |
spellingShingle |
Arctic Ocean halocline atmospheric forcing Laptev Sea stable isotopes water masses Bauch, Dorothea Gröger, Matthias Dmitrenko, Igor Hölemann, Jens Kirillov, Sergey Mackensen, Andreas Taldenkova, Ekatarina Andersen, Nils Atmospheric controlled freshwater release at the Laptev Sea continental margin |
topic_facet |
Arctic Ocean halocline atmospheric forcing Laptev Sea stable isotopes water masses |
description |
Considerable interannual differences were observed in river water and sea-ice meltwater inventory values derived from d18O 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. Keywords: Arctic Ocean halocline; atmospheric forcing; Laptev Sea; stable isotopes; water masses. (Published: 1 January 2011) Citation: Polar Research 2011, 30: 5858 - DOI:10.3402/polar.v30i0.5858 |
format |
Article in Journal/Newspaper |
author |
Bauch, Dorothea Gröger, Matthias Dmitrenko, Igor Hölemann, Jens Kirillov, Sergey Mackensen, Andreas Taldenkova, Ekatarina Andersen, Nils |
author_facet |
Bauch, Dorothea Gröger, Matthias Dmitrenko, Igor Hölemann, Jens Kirillov, Sergey Mackensen, Andreas Taldenkova, Ekatarina Andersen, Nils |
author_sort |
Bauch, Dorothea |
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 |
2010 |
url |
https://polarresearch.net/index.php/polar/article/view/3067 https://doi.org/10.3402/polar.v30i0.5858 |
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 (2011) 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/3067/pdf_77 https://polarresearch.net/index.php/polar/article/view/3067/html_75 https://polarresearch.net/index.php/polar/article/view/3067/6977 https://polarresearch.net/index.php/polar/article/view/3067/xml_75 https://polarresearch.net/index.php/polar/article/view/3067 doi:10.3402/polar.v30i0.5858 |
op_rights |
Copyright (c) 2018 Polar Research |
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_ |
1766326035807207424 |