Arctic Sea level Budget Assessment During the GRACE/Argo Time Period
Sea level change is an important indicator of climate change. Our study focuses on the sea level budget assessment of the Arctic Ocean using: (1) the newly reprocessed satellite altimeter data with major changes in the processing techniques; (2) ocean mass change data derived from GRACE satellite gr...
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Online Access: | https://hdl.handle.net/11250/2727143 https://doi.org/10.3390/rs12172837 |
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ftunivbergen:oai:bora.uib.no:11250/2727143 2023-05-15T14:39:36+02:00 Arctic Sea level Budget Assessment During the GRACE/Argo Time Period Raj, Roshin Pappukutty Andersen, Ole Baltazar Johannessen, Johnny Andre Benjamin, Gutknech Chatterjee, Sourav Rose, Stine Bonaduce, Antonio Horwath, Martin Ranndal, Heidi Richter, Kristin Palanisamy, Hindumathi Ludwigsen, Carsten Bertino, Laurent Nilsen, Jan Even Øie Knudsen, Per Hogg, Anna E. Cazenave, Anny Benveniste, Jérôme 2020 application/pdf https://hdl.handle.net/11250/2727143 https://doi.org/10.3390/rs12172837 eng eng MDPI Norges forskningsråd: 261743 urn:issn:2072-4292 https://hdl.handle.net/11250/2727143 https://doi.org/10.3390/rs12172837 cristin:1826857 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no Copyright 2020 by the authors 2837 Remote Sensing 125 Journal article Peer reviewed 2020 ftunivbergen https://doi.org/10.3390/rs12172837 2023-03-14T17:39:43Z Sea level change is an important indicator of climate change. Our study focuses on the sea level budget assessment of the Arctic Ocean using: (1) the newly reprocessed satellite altimeter data with major changes in the processing techniques; (2) ocean mass change data derived from GRACE satellite gravimetry; (3) and steric height estimated from gridded hydrographic data for the GRACE/Argo time period (2003–2016). The Beaufort Gyre (BG) and the Nordic Seas (NS) regions exhibit the largest positive trend in sea level during the study period. Halosteric sea level change is found to dominate the area averaged sea level trend of BG, while the trend in NS is found to be influenced by halosteric and ocean mass change effects. Temporal variability of sea level in these two regions reveals a significant shift in the trend pattern centered around 2009–2011. Analysis suggests that this shift can be explained by a change in large-scale atmospheric circulation patterns over the Arctic. The sea level budget assessment of the Arctic found a residual trend of more than 1.0 mm/yr. This nonclosure of the sea level budget is further attributed to the limitations of the three above mentioned datasets in the Arctic region. publishedVersion Article in Journal/Newspaper Arctic Arctic Ocean Climate change Nordic Seas University of Bergen: Bergen Open Research Archive (BORA-UiB) Arctic Arctic Ocean Remote Sensing 12 17 2837 |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
description |
Sea level change is an important indicator of climate change. Our study focuses on the sea level budget assessment of the Arctic Ocean using: (1) the newly reprocessed satellite altimeter data with major changes in the processing techniques; (2) ocean mass change data derived from GRACE satellite gravimetry; (3) and steric height estimated from gridded hydrographic data for the GRACE/Argo time period (2003–2016). The Beaufort Gyre (BG) and the Nordic Seas (NS) regions exhibit the largest positive trend in sea level during the study period. Halosteric sea level change is found to dominate the area averaged sea level trend of BG, while the trend in NS is found to be influenced by halosteric and ocean mass change effects. Temporal variability of sea level in these two regions reveals a significant shift in the trend pattern centered around 2009–2011. Analysis suggests that this shift can be explained by a change in large-scale atmospheric circulation patterns over the Arctic. The sea level budget assessment of the Arctic found a residual trend of more than 1.0 mm/yr. This nonclosure of the sea level budget is further attributed to the limitations of the three above mentioned datasets in the Arctic region. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Raj, Roshin Pappukutty Andersen, Ole Baltazar Johannessen, Johnny Andre Benjamin, Gutknech Chatterjee, Sourav Rose, Stine Bonaduce, Antonio Horwath, Martin Ranndal, Heidi Richter, Kristin Palanisamy, Hindumathi Ludwigsen, Carsten Bertino, Laurent Nilsen, Jan Even Øie Knudsen, Per Hogg, Anna E. Cazenave, Anny Benveniste, Jérôme |
spellingShingle |
Raj, Roshin Pappukutty Andersen, Ole Baltazar Johannessen, Johnny Andre Benjamin, Gutknech Chatterjee, Sourav Rose, Stine Bonaduce, Antonio Horwath, Martin Ranndal, Heidi Richter, Kristin Palanisamy, Hindumathi Ludwigsen, Carsten Bertino, Laurent Nilsen, Jan Even Øie Knudsen, Per Hogg, Anna E. Cazenave, Anny Benveniste, Jérôme Arctic Sea level Budget Assessment During the GRACE/Argo Time Period |
author_facet |
Raj, Roshin Pappukutty Andersen, Ole Baltazar Johannessen, Johnny Andre Benjamin, Gutknech Chatterjee, Sourav Rose, Stine Bonaduce, Antonio Horwath, Martin Ranndal, Heidi Richter, Kristin Palanisamy, Hindumathi Ludwigsen, Carsten Bertino, Laurent Nilsen, Jan Even Øie Knudsen, Per Hogg, Anna E. Cazenave, Anny Benveniste, Jérôme |
author_sort |
Raj, Roshin Pappukutty |
title |
Arctic Sea level Budget Assessment During the GRACE/Argo Time Period |
title_short |
Arctic Sea level Budget Assessment During the GRACE/Argo Time Period |
title_full |
Arctic Sea level Budget Assessment During the GRACE/Argo Time Period |
title_fullStr |
Arctic Sea level Budget Assessment During the GRACE/Argo Time Period |
title_full_unstemmed |
Arctic Sea level Budget Assessment During the GRACE/Argo Time Period |
title_sort |
arctic sea level budget assessment during the grace/argo time period |
publisher |
MDPI |
publishDate |
2020 |
url |
https://hdl.handle.net/11250/2727143 https://doi.org/10.3390/rs12172837 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Climate change Nordic Seas |
genre_facet |
Arctic Arctic Ocean Climate change Nordic Seas |
op_source |
2837 Remote Sensing 125 |
op_relation |
Norges forskningsråd: 261743 urn:issn:2072-4292 https://hdl.handle.net/11250/2727143 https://doi.org/10.3390/rs12172837 cristin:1826857 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no Copyright 2020 by the authors |
op_doi |
https://doi.org/10.3390/rs12172837 |
container_title |
Remote Sensing |
container_volume |
12 |
container_issue |
17 |
container_start_page |
2837 |
_version_ |
1766311574910271488 |