Global Sea-Level Budget 1993-Present
Global mean sea level is an integral of changes occurring in the climate system in response to unforced climate variability as well as natural and anthropogenic forcing factors. Its temporal evolution allows changes (e.g.,acceleration) to be detected in one or more components. Study of the sea-level...
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ftolddominionuni:oai:digitalcommons.odu.edu:ccpo_pubs-1276 2023-12-17T10:20:14+01:00 Global Sea-Level Budget 1993-Present WCRP Global Sea Level Budget Group Hamlington, Benjamin 2018-01-01T08:00:00Z application/pdf https://digitalcommons.odu.edu/ccpo_pubs/272 https://doi.org/10.5194/essd-10-1551-2018 https://digitalcommons.odu.edu/context/ccpo_pubs/article/1276/viewcontent/Global_sea_level_budget_hamlington_2018.pdf unknown ODU Digital Commons https://digitalcommons.odu.edu/ccpo_pubs/272 doi:10.5194/essd-10-1551-2018 https://digitalcommons.odu.edu/context/ccpo_pubs/article/1276/viewcontent/Global_sea_level_budget_hamlington_2018.pdf Article is open access and distributed under the Creative Commons Attribution 4.0 License . © Author(s) 2018. CCPO Publications Climate change Ice sheets Global mean sea level Global warming Sea level budget Sea level rise Ocean thermal expansion Atmospheric Sciences Climate Geology Meteorology Oceanography article 2018 ftolddominionuni https://doi.org/10.5194/essd-10-1551-2018 2023-11-20T19:09:45Z Global mean sea level is an integral of changes occurring in the climate system in response to unforced climate variability as well as natural and anthropogenic forcing factors. Its temporal evolution allows changes (e.g.,acceleration) to be detected in one or more components. Study of the sea-level budget provides constraints on missing or poorly known contributions, such as the unsurveyed deep ocean or the still uncertain land water component. In the context of the World Climate Research Programme Grand Challenge entitled "Regional Sea Level and Coastal Impacts", an international effort involving the sea-level community worldwide has been recently initiated with the objective of assessing the various datasets used to estimate components of the sea-level budget during the altimetry era (1993 to present). These datasets are based on the combination of a broad range of space-based and in situ observations, model estimates, and algorithms. Evaluating their quality, quantifying uncertainties and identifying sources of discrepancies between component estimates is extremely useful for various applications in climate research. This effort involves several tens of scientists from about 50 research teams/institutions worldwide (www.wcrp-climate.org/grand-challenges/gc-sea-level, last access: 22 August 2018). The results presented in this paper are a synthesis of the first assessment performed during 2017-2018. We present estimates of the altimetry-based global mean sea level (average rate of 3.1 ± 0.3mm yr(-1) and acceleration of 0.1 mm yr(-2) over 1993-present), as well as of the different components of the sea-level budget (http://doi.org/10.17882/54854, last access: 22 August 2018). We further examine closure of the sea-level budget, comparing the observed global mean sea level with the sum of components. Ocean thermal expansion, glaciers, Greenland and Antarctica contribute 42%, 21%, 15% and 8% to the global mean sea level over the 1993-present period. We also study the sea-level budget over 2005-present, using ... Article in Journal/Newspaper Antarc* Antarctica Greenland Old Dominion University: ODU Digital Commons Greenland Earth System Science Data 10 3 1551 1590 |
institution |
Open Polar |
collection |
Old Dominion University: ODU Digital Commons |
op_collection_id |
ftolddominionuni |
language |
unknown |
topic |
Climate change Ice sheets Global mean sea level Global warming Sea level budget Sea level rise Ocean thermal expansion Atmospheric Sciences Climate Geology Meteorology Oceanography |
spellingShingle |
Climate change Ice sheets Global mean sea level Global warming Sea level budget Sea level rise Ocean thermal expansion Atmospheric Sciences Climate Geology Meteorology Oceanography WCRP Global Sea Level Budget Group Hamlington, Benjamin Global Sea-Level Budget 1993-Present |
topic_facet |
Climate change Ice sheets Global mean sea level Global warming Sea level budget Sea level rise Ocean thermal expansion Atmospheric Sciences Climate Geology Meteorology Oceanography |
description |
Global mean sea level is an integral of changes occurring in the climate system in response to unforced climate variability as well as natural and anthropogenic forcing factors. Its temporal evolution allows changes (e.g.,acceleration) to be detected in one or more components. Study of the sea-level budget provides constraints on missing or poorly known contributions, such as the unsurveyed deep ocean or the still uncertain land water component. In the context of the World Climate Research Programme Grand Challenge entitled "Regional Sea Level and Coastal Impacts", an international effort involving the sea-level community worldwide has been recently initiated with the objective of assessing the various datasets used to estimate components of the sea-level budget during the altimetry era (1993 to present). These datasets are based on the combination of a broad range of space-based and in situ observations, model estimates, and algorithms. Evaluating their quality, quantifying uncertainties and identifying sources of discrepancies between component estimates is extremely useful for various applications in climate research. This effort involves several tens of scientists from about 50 research teams/institutions worldwide (www.wcrp-climate.org/grand-challenges/gc-sea-level, last access: 22 August 2018). The results presented in this paper are a synthesis of the first assessment performed during 2017-2018. We present estimates of the altimetry-based global mean sea level (average rate of 3.1 ± 0.3mm yr(-1) and acceleration of 0.1 mm yr(-2) over 1993-present), as well as of the different components of the sea-level budget (http://doi.org/10.17882/54854, last access: 22 August 2018). We further examine closure of the sea-level budget, comparing the observed global mean sea level with the sum of components. Ocean thermal expansion, glaciers, Greenland and Antarctica contribute 42%, 21%, 15% and 8% to the global mean sea level over the 1993-present period. We also study the sea-level budget over 2005-present, using ... |
format |
Article in Journal/Newspaper |
author |
WCRP Global Sea Level Budget Group Hamlington, Benjamin |
author_facet |
WCRP Global Sea Level Budget Group Hamlington, Benjamin |
author_sort |
WCRP Global Sea Level Budget Group |
title |
Global Sea-Level Budget 1993-Present |
title_short |
Global Sea-Level Budget 1993-Present |
title_full |
Global Sea-Level Budget 1993-Present |
title_fullStr |
Global Sea-Level Budget 1993-Present |
title_full_unstemmed |
Global Sea-Level Budget 1993-Present |
title_sort |
global sea-level budget 1993-present |
publisher |
ODU Digital Commons |
publishDate |
2018 |
url |
https://digitalcommons.odu.edu/ccpo_pubs/272 https://doi.org/10.5194/essd-10-1551-2018 https://digitalcommons.odu.edu/context/ccpo_pubs/article/1276/viewcontent/Global_sea_level_budget_hamlington_2018.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Antarc* Antarctica Greenland |
genre_facet |
Antarc* Antarctica Greenland |
op_source |
CCPO Publications |
op_relation |
https://digitalcommons.odu.edu/ccpo_pubs/272 doi:10.5194/essd-10-1551-2018 https://digitalcommons.odu.edu/context/ccpo_pubs/article/1276/viewcontent/Global_sea_level_budget_hamlington_2018.pdf |
op_rights |
Article is open access and distributed under the Creative Commons Attribution 4.0 License . © Author(s) 2018. |
op_doi |
https://doi.org/10.5194/essd-10-1551-2018 |
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Earth System Science Data |
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