Toward Improved Estimation of the Dynamic Topography and Ocean Circulation in the High Latitude and Arctic Ocean: The Importance of GOCE
The Arctic plays a fundamental role in the climate system and shows significant sensitivity to anthropogenic climate forcing and the ongoing climate change. Accelerated changes in the Arctic are already observed, including elevated air and ocean temperatures, declines of the summer sea ice extent an...
Published in: | Surveys in Geophysics |
---|---|
Main Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2014
|
Subjects: | |
Online Access: | https://orbit.dtu.dk/en/publications/cf96b8f7-4c0e-49ad-aba6-bfba1fcf1c4e https://doi.org/10.1007/s10712-013-9270-y https://backend.orbit.dtu.dk/ws/files/90301280/art_3A10.1007_2Fs10712_013_9270_y.pdf |
id |
ftdtupubl:oai:pure.atira.dk:publications/cf96b8f7-4c0e-49ad-aba6-bfba1fcf1c4e |
---|---|
record_format |
openpolar |
spelling |
ftdtupubl:oai:pure.atira.dk:publications/cf96b8f7-4c0e-49ad-aba6-bfba1fcf1c4e 2024-04-28T07:53:38+00:00 Toward Improved Estimation of the Dynamic Topography and Ocean Circulation in the High Latitude and Arctic Ocean: The Importance of GOCE Johannessen, J. A. Raj, R. P. Nilsen, J. E. Ø. Pripp, T. Knudsen, Per Counillon, F. Stammer, D. Bertino, L. Andersen, Ole Baltazar Serra, N. Koldunov, N. 2014 application/pdf https://orbit.dtu.dk/en/publications/cf96b8f7-4c0e-49ad-aba6-bfba1fcf1c4e https://doi.org/10.1007/s10712-013-9270-y https://backend.orbit.dtu.dk/ws/files/90301280/art_3A10.1007_2Fs10712_013_9270_y.pdf eng eng https://orbit.dtu.dk/en/publications/cf96b8f7-4c0e-49ad-aba6-bfba1fcf1c4e info:eu-repo/semantics/openAccess Johannessen , J A , Raj , R P , Nilsen , J E Ø , Pripp , T , Knudsen , P , Counillon , F , Stammer , D , Bertino , L , Andersen , O B , Serra , N & Koldunov , N 2014 , ' Toward Improved Estimation of the Dynamic Topography and Ocean Circulation in the High Latitude and Arctic Ocean: The Importance of GOCE ' , Surveys in Geophysics , vol. 35 , no. 3 , pp. 661-679 . https://doi.org/10.1007/s10712-013-9270-y /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2014 ftdtupubl https://doi.org/10.1007/s10712-013-9270-y 2024-04-03T15:11:51Z The Arctic plays a fundamental role in the climate system and shows significant sensitivity to anthropogenic climate forcing and the ongoing climate change. Accelerated changes in the Arctic are already observed, including elevated air and ocean temperatures, declines of the summer sea ice extent and sea ice thickness influencing the albedo and CO2 exchange, melting of the Greenland Ice Sheet and increased thawing of surrounding permafrost regions. In turn, the hydrological cycle in the high latitude and Arctic is expected to undergo changes although to date it is challenging to accurately quantify this. Moreover, changes in the temperature and salinity of surface waters in the Arctic Ocean and Nordic Seas may also influence the flow of dense water through the Denmark Strait, which are found to be a precursor for changes in the Atlantic meridional overturning circulation with a lead time of around 10 years (Hawkins and Sutton in Geophys Res Lett 35:L11603, 2008). Evidently changes in the Arctic and surrounding seas have far reaching influences on regional and global environment and climate variability, thus emphasizing the need for advanced quantitative understanding of the ocean circulation and transport variability in the high latitude and Arctic Ocean. In this respect, this study combines in situ hydrographical data, surface drifter data and direct current meter measurements, with coupled sea ice–ocean models, radar altimeter data and the latest GOCE-based geoid in order to estimate and assess the quality, usefulness and validity of the new GOCE-derived mean dynamic topography for studies of the ocean circulation and transport estimates in the Nordic Seas and Arctic Ocean. Article in Journal/Newspaper albedo Arctic Arctic Arctic Ocean Climate change Denmark Strait Greenland Ice Ice Sheet Nordic Seas permafrost Sea ice Technical University of Denmark: DTU Orbit Surveys in Geophysics 35 3 661 679 |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Johannessen, J. A. Raj, R. P. Nilsen, J. E. Ø. Pripp, T. Knudsen, Per Counillon, F. Stammer, D. Bertino, L. Andersen, Ole Baltazar Serra, N. Koldunov, N. Toward Improved Estimation of the Dynamic Topography and Ocean Circulation in the High Latitude and Arctic Ocean: The Importance of GOCE |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
The Arctic plays a fundamental role in the climate system and shows significant sensitivity to anthropogenic climate forcing and the ongoing climate change. Accelerated changes in the Arctic are already observed, including elevated air and ocean temperatures, declines of the summer sea ice extent and sea ice thickness influencing the albedo and CO2 exchange, melting of the Greenland Ice Sheet and increased thawing of surrounding permafrost regions. In turn, the hydrological cycle in the high latitude and Arctic is expected to undergo changes although to date it is challenging to accurately quantify this. Moreover, changes in the temperature and salinity of surface waters in the Arctic Ocean and Nordic Seas may also influence the flow of dense water through the Denmark Strait, which are found to be a precursor for changes in the Atlantic meridional overturning circulation with a lead time of around 10 years (Hawkins and Sutton in Geophys Res Lett 35:L11603, 2008). Evidently changes in the Arctic and surrounding seas have far reaching influences on regional and global environment and climate variability, thus emphasizing the need for advanced quantitative understanding of the ocean circulation and transport variability in the high latitude and Arctic Ocean. In this respect, this study combines in situ hydrographical data, surface drifter data and direct current meter measurements, with coupled sea ice–ocean models, radar altimeter data and the latest GOCE-based geoid in order to estimate and assess the quality, usefulness and validity of the new GOCE-derived mean dynamic topography for studies of the ocean circulation and transport estimates in the Nordic Seas and Arctic Ocean. |
format |
Article in Journal/Newspaper |
author |
Johannessen, J. A. Raj, R. P. Nilsen, J. E. Ø. Pripp, T. Knudsen, Per Counillon, F. Stammer, D. Bertino, L. Andersen, Ole Baltazar Serra, N. Koldunov, N. |
author_facet |
Johannessen, J. A. Raj, R. P. Nilsen, J. E. Ø. Pripp, T. Knudsen, Per Counillon, F. Stammer, D. Bertino, L. Andersen, Ole Baltazar Serra, N. Koldunov, N. |
author_sort |
Johannessen, J. A. |
title |
Toward Improved Estimation of the Dynamic Topography and Ocean Circulation in the High Latitude and Arctic Ocean: The Importance of GOCE |
title_short |
Toward Improved Estimation of the Dynamic Topography and Ocean Circulation in the High Latitude and Arctic Ocean: The Importance of GOCE |
title_full |
Toward Improved Estimation of the Dynamic Topography and Ocean Circulation in the High Latitude and Arctic Ocean: The Importance of GOCE |
title_fullStr |
Toward Improved Estimation of the Dynamic Topography and Ocean Circulation in the High Latitude and Arctic Ocean: The Importance of GOCE |
title_full_unstemmed |
Toward Improved Estimation of the Dynamic Topography and Ocean Circulation in the High Latitude and Arctic Ocean: The Importance of GOCE |
title_sort |
toward improved estimation of the dynamic topography and ocean circulation in the high latitude and arctic ocean: the importance of goce |
publishDate |
2014 |
url |
https://orbit.dtu.dk/en/publications/cf96b8f7-4c0e-49ad-aba6-bfba1fcf1c4e https://doi.org/10.1007/s10712-013-9270-y https://backend.orbit.dtu.dk/ws/files/90301280/art_3A10.1007_2Fs10712_013_9270_y.pdf |
genre |
albedo Arctic Arctic Arctic Ocean Climate change Denmark Strait Greenland Ice Ice Sheet Nordic Seas permafrost Sea ice |
genre_facet |
albedo Arctic Arctic Arctic Ocean Climate change Denmark Strait Greenland Ice Ice Sheet Nordic Seas permafrost Sea ice |
op_source |
Johannessen , J A , Raj , R P , Nilsen , J E Ø , Pripp , T , Knudsen , P , Counillon , F , Stammer , D , Bertino , L , Andersen , O B , Serra , N & Koldunov , N 2014 , ' Toward Improved Estimation of the Dynamic Topography and Ocean Circulation in the High Latitude and Arctic Ocean: The Importance of GOCE ' , Surveys in Geophysics , vol. 35 , no. 3 , pp. 661-679 . https://doi.org/10.1007/s10712-013-9270-y |
op_relation |
https://orbit.dtu.dk/en/publications/cf96b8f7-4c0e-49ad-aba6-bfba1fcf1c4e |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s10712-013-9270-y |
container_title |
Surveys in Geophysics |
container_volume |
35 |
container_issue |
3 |
container_start_page |
661 |
op_container_end_page |
679 |
_version_ |
1797572719610429440 |