Arctic Sea Level During the Satellite Altimetry Era
Results of the sea-level budget in the high latitudes (up to 80°N) and the Arctic Ocean during the satellite altimetry era. We investigate the closure of the sea-level budget since 2002 using two altimetry sea-level datasets based on the Envisat waveform retracking: temperature and salinity data fro...
Published in: | Surveys in Geophysics |
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Online Access: | https://orbit.dtu.dk/en/publications/c5e9cdfe-f0e2-4c92-9889-862c38d49c2d https://doi.org/10.1007/s10712-016-9390-2 |
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ftdtupubl:oai:pure.atira.dk:publications/c5e9cdfe-f0e2-4c92-9889-862c38d49c2d 2024-03-31T07:49:44+00:00 Arctic Sea Level During the Satellite Altimetry Era Carret, A. Johannessen, J. A. Andersen, Ole Baltazar Ablain, M. Prandi, Pierre Velazquez-Blazquez, A Cazenave, A. 2017 https://orbit.dtu.dk/en/publications/c5e9cdfe-f0e2-4c92-9889-862c38d49c2d https://doi.org/10.1007/s10712-016-9390-2 eng eng https://orbit.dtu.dk/en/publications/c5e9cdfe-f0e2-4c92-9889-862c38d49c2d info:eu-repo/semantics/closedAccess Carret , A , Johannessen , J A , Andersen , O B , Ablain , M , Prandi , P , Velazquez-Blazquez , A & Cazenave , A 2017 , ' Arctic Sea Level During the Satellite Altimetry Era ' , Surveys in Geophysics , vol. 38 , no. 1 , pp. 251-275 . https://doi.org/10.1007/s10712-016-9390-2 Arctic Ocean CMIP5 models Ocean mass Satellite altimetry Sea-level change Steric sea level /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action article 2017 ftdtupubl https://doi.org/10.1007/s10712-016-9390-2 2024-03-06T01:04:28Z Results of the sea-level budget in the high latitudes (up to 80°N) and the Arctic Ocean during the satellite altimetry era. We investigate the closure of the sea-level budget since 2002 using two altimetry sea-level datasets based on the Envisat waveform retracking: temperature and salinity data from the ORAP5 reanalysis, and Gravity Recovery And Climate Experiment (GRACE) space gravimetry data to estimate the steric and mass components. Regional sea-level trends seen in the altimetry map, in particular over the Beaufort Gyre and along the eastern coast of Greenland, are of halosteric origin. However, in terms of regional average over the region ranging from 66°N to 80°N, the steric component contributes little to the observed sea-level trend, suggesting a dominant mass contribution in the Arctic region. This is confirmed by GRACE-based ocean mass time series that agree well with the altimetry-based sea-level time series. Direct estimate of the mass component is not possible prior to GRACE. Thus, we estimated the mass contribution from the difference between the altimetry-based sea level and the steric component. We also investigate the coastal sea level with tide gauge records. Twenty coupled climate models from the CMIP5 project are also used. The models lead us to the same conclusions concerning the halosteric origin of the trend patterns. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Greenland Technical University of Denmark: DTU Orbit Arctic Arctic Ocean Greenland Surveys in Geophysics 38 1 251 275 |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
Arctic Ocean CMIP5 models Ocean mass Satellite altimetry Sea-level change Steric sea level /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action |
spellingShingle |
Arctic Ocean CMIP5 models Ocean mass Satellite altimetry Sea-level change Steric sea level /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action Carret, A. Johannessen, J. A. Andersen, Ole Baltazar Ablain, M. Prandi, Pierre Velazquez-Blazquez, A Cazenave, A. Arctic Sea Level During the Satellite Altimetry Era |
topic_facet |
Arctic Ocean CMIP5 models Ocean mass Satellite altimetry Sea-level change Steric sea level /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action |
description |
Results of the sea-level budget in the high latitudes (up to 80°N) and the Arctic Ocean during the satellite altimetry era. We investigate the closure of the sea-level budget since 2002 using two altimetry sea-level datasets based on the Envisat waveform retracking: temperature and salinity data from the ORAP5 reanalysis, and Gravity Recovery And Climate Experiment (GRACE) space gravimetry data to estimate the steric and mass components. Regional sea-level trends seen in the altimetry map, in particular over the Beaufort Gyre and along the eastern coast of Greenland, are of halosteric origin. However, in terms of regional average over the region ranging from 66°N to 80°N, the steric component contributes little to the observed sea-level trend, suggesting a dominant mass contribution in the Arctic region. This is confirmed by GRACE-based ocean mass time series that agree well with the altimetry-based sea-level time series. Direct estimate of the mass component is not possible prior to GRACE. Thus, we estimated the mass contribution from the difference between the altimetry-based sea level and the steric component. We also investigate the coastal sea level with tide gauge records. Twenty coupled climate models from the CMIP5 project are also used. The models lead us to the same conclusions concerning the halosteric origin of the trend patterns. |
format |
Article in Journal/Newspaper |
author |
Carret, A. Johannessen, J. A. Andersen, Ole Baltazar Ablain, M. Prandi, Pierre Velazquez-Blazquez, A Cazenave, A. |
author_facet |
Carret, A. Johannessen, J. A. Andersen, Ole Baltazar Ablain, M. Prandi, Pierre Velazquez-Blazquez, A Cazenave, A. |
author_sort |
Carret, A. |
title |
Arctic Sea Level During the Satellite Altimetry Era |
title_short |
Arctic Sea Level During the Satellite Altimetry Era |
title_full |
Arctic Sea Level During the Satellite Altimetry Era |
title_fullStr |
Arctic Sea Level During the Satellite Altimetry Era |
title_full_unstemmed |
Arctic Sea Level During the Satellite Altimetry Era |
title_sort |
arctic sea level during the satellite altimetry era |
publishDate |
2017 |
url |
https://orbit.dtu.dk/en/publications/c5e9cdfe-f0e2-4c92-9889-862c38d49c2d https://doi.org/10.1007/s10712-016-9390-2 |
geographic |
Arctic Arctic Ocean Greenland |
geographic_facet |
Arctic Arctic Ocean Greenland |
genre |
Arctic Arctic Arctic Ocean Greenland |
genre_facet |
Arctic Arctic Arctic Ocean Greenland |
op_source |
Carret , A , Johannessen , J A , Andersen , O B , Ablain , M , Prandi , P , Velazquez-Blazquez , A & Cazenave , A 2017 , ' Arctic Sea Level During the Satellite Altimetry Era ' , Surveys in Geophysics , vol. 38 , no. 1 , pp. 251-275 . https://doi.org/10.1007/s10712-016-9390-2 |
op_relation |
https://orbit.dtu.dk/en/publications/c5e9cdfe-f0e2-4c92-9889-862c38d49c2d |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1007/s10712-016-9390-2 |
container_title |
Surveys in Geophysics |
container_volume |
38 |
container_issue |
1 |
container_start_page |
251 |
op_container_end_page |
275 |
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