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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Norwegian Polar Institute
2011
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ftoceanrep:oai:oceanrep.geomar.de:10719 2023-05-15T15:07:56+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, Ekaterina Andersen, Nils 2011 text https://oceanrep.geomar.de/id/eprint/10719/ https://oceanrep.geomar.de/id/eprint/10719/1/2011_BauchD_PolRes_5858-15706-2-PB.pdf https://doi.org/10.3402/polar.v30i0.5858 en eng Norwegian Polar Institute https://oceanrep.geomar.de/id/eprint/10719/1/2011_BauchD_PolRes_5858-15706-2-PB.pdf Bauch, D. , Gröger, M., Dmitrenko, I., Hölemann, J., Kirillov, S., Mackensen, A., Taldenkova, E. and Andersen, N. (2011) Atmospheric controlled freshwater release at the Laptev Sea Continental margin. Open Access Polar Research, 30 (5858). DOI 10.3402/polar.v30i0.5858 <https://doi.org/10.3402/polar.v30i0.5858>. doi:10.3402/polar.v30i0.5858 cc_by_nc_3.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2011 ftoceanrep https://doi.org/10.3402/polar.v30i0.5858 2023-04-07T14:58:58Z 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. Article in Journal/Newspaper Arctic laptev Laptev Sea Polar Research Sea ice OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Laptev Sea Polar Research 30 1 5858 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
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. |
format |
Article in Journal/Newspaper |
author |
Bauch, Dorothea Gröger, Matthias Dmitrenko, Igor Hölemann, Jens Kirillov, Sergey Mackensen, Andreas Taldenkova, Ekaterina Andersen, Nils |
spellingShingle |
Bauch, Dorothea Gröger, Matthias Dmitrenko, Igor Hölemann, Jens Kirillov, Sergey Mackensen, Andreas Taldenkova, Ekaterina Andersen, Nils Atmospheric controlled freshwater release at the Laptev Sea Continental margin |
author_facet |
Bauch, Dorothea Gröger, Matthias Dmitrenko, Igor Hölemann, Jens Kirillov, Sergey Mackensen, Andreas Taldenkova, Ekaterina 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 |
2011 |
url |
https://oceanrep.geomar.de/id/eprint/10719/ https://oceanrep.geomar.de/id/eprint/10719/1/2011_BauchD_PolRes_5858-15706-2-PB.pdf https://doi.org/10.3402/polar.v30i0.5858 |
geographic |
Arctic Laptev Sea |
geographic_facet |
Arctic Laptev Sea |
genre |
Arctic laptev Laptev Sea Polar Research Sea ice |
genre_facet |
Arctic laptev Laptev Sea Polar Research Sea ice |
op_relation |
https://oceanrep.geomar.de/id/eprint/10719/1/2011_BauchD_PolRes_5858-15706-2-PB.pdf Bauch, D. , Gröger, M., Dmitrenko, I., Hölemann, J., Kirillov, S., Mackensen, A., Taldenkova, E. and Andersen, N. (2011) Atmospheric controlled freshwater release at the Laptev Sea Continental margin. Open Access Polar Research, 30 (5858). DOI 10.3402/polar.v30i0.5858 <https://doi.org/10.3402/polar.v30i0.5858>. doi:10.3402/polar.v30i0.5858 |
op_rights |
cc_by_nc_3.0 info:eu-repo/semantics/openAccess |
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_ |
1766339357639180288 |