Sea level budget over 2003-2008: A reevaluation from GRACE space gravimetry, satellite altimetry and Argo
0921-8181 From the IPCC 4th Assessment Report published in 2007, ocean thermal expansion contributed by similar to 50% to the 3.1 mm/yr observed global mean sea level rise during the 1993-2003 decade, the remaining rate of rise being essentially explained by shrinking of land ice. Recently published...
Published in: | Global and Planetary Change |
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Main Authors: | , , , , , , , |
Other Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2009
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Subjects: | |
Online Access: | https://hal.science/hal-00401223 https://hal.science/hal-00401223/document https://hal.science/hal-00401223/file/Cazenave_et_al_GPC_2009.pdf https://doi.org/10.1016/j.gloplacha.2008.10.004 |
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openpolar |
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Open Polar |
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Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
sea-level thermal expansion ice melt climate ICE MASS-LOSS ANTARCTICA GREENLAND BALANCE TEMPERATURE SHEETS [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
sea-level thermal expansion ice melt climate ICE MASS-LOSS ANTARCTICA GREENLAND BALANCE TEMPERATURE SHEETS [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Cazenave, A. Dominh, K. Guinehut, S. Berthier, E. Llovel, W. Ramillien, G. Ablain, M. Larnicol, G. Sea level budget over 2003-2008: A reevaluation from GRACE space gravimetry, satellite altimetry and Argo |
topic_facet |
sea-level thermal expansion ice melt climate ICE MASS-LOSS ANTARCTICA GREENLAND BALANCE TEMPERATURE SHEETS [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
0921-8181 From the IPCC 4th Assessment Report published in 2007, ocean thermal expansion contributed by similar to 50% to the 3.1 mm/yr observed global mean sea level rise during the 1993-2003 decade, the remaining rate of rise being essentially explained by shrinking of land ice. Recently published results suggest that since about 2003, ocean thermal expansion change, based on the newly deployed Argo system, is showing a plateau while sea level is still rising, although at a reduced rate (similar to 2.5 mm/yr). Using space gravimetry observations from GRACE, we show that recent years sea level rise can be mostly explained by an increase of the mass of the oceans. Estimating GRACE-based ice sheet mass balance and using published estimates for glaciers melting, we further show that ocean mass increase since 2003 results by about half from an enhanced contribution of the polar ice sheets - compared to the previous decade - and half from mountain glaciers melting. Taking also into account the small GRACE-based contribution from continental waters (<0.2 mm/yr), we find a total ocean mass contribution of similar to 2 mm/yr over 2003-2008. Such a value represents similar to 80% of the altimetry-based rate of sea level rise over that period. We next estimate the steric sea level (i.e., ocean thermal expansion plus salinity effects) contribution from: (1) the difference between altimetry-based sea level and ocean mass change and (2) Argo data. Inferred steric sea level rate from (1) (similar to 0.3 mm/yr over 2003-2008) agrees well with the Argo-based value also estimated here (0.37 mm/yr over 2004-2008). Furthermore, the sea level budget approach presented in this study allows us to constrain independent estimates of the Glacial Isostatic Adjustment (GIA) correction applied to GRACE-based ocean and ice sheet mass changes, as well as of glaciers melting. Values for the CIA correction and glacier contribution needed to close the sea level budget and explain GRACE-based mass estimates over the recent years agree well ... |
author2 |
Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS) Collecte Localisation Satellites (CLS) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National d'Études Spatiales Toulouse (CNES) |
format |
Article in Journal/Newspaper |
author |
Cazenave, A. Dominh, K. Guinehut, S. Berthier, E. Llovel, W. Ramillien, G. Ablain, M. Larnicol, G. |
author_facet |
Cazenave, A. Dominh, K. Guinehut, S. Berthier, E. Llovel, W. Ramillien, G. Ablain, M. Larnicol, G. |
author_sort |
Cazenave, A. |
title |
Sea level budget over 2003-2008: A reevaluation from GRACE space gravimetry, satellite altimetry and Argo |
title_short |
Sea level budget over 2003-2008: A reevaluation from GRACE space gravimetry, satellite altimetry and Argo |
title_full |
Sea level budget over 2003-2008: A reevaluation from GRACE space gravimetry, satellite altimetry and Argo |
title_fullStr |
Sea level budget over 2003-2008: A reevaluation from GRACE space gravimetry, satellite altimetry and Argo |
title_full_unstemmed |
Sea level budget over 2003-2008: A reevaluation from GRACE space gravimetry, satellite altimetry and Argo |
title_sort |
sea level budget over 2003-2008: a reevaluation from grace space gravimetry, satellite altimetry and argo |
publisher |
HAL CCSD |
publishDate |
2009 |
url |
https://hal.science/hal-00401223 https://hal.science/hal-00401223/document https://hal.science/hal-00401223/file/Cazenave_et_al_GPC_2009.pdf https://doi.org/10.1016/j.gloplacha.2008.10.004 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Antarc* Antarctica glacier Greenland Ice Sheet |
genre_facet |
Antarc* Antarctica glacier Greenland Ice Sheet |
op_source |
ISSN: 0921-8181 Global and Planetary Change https://hal.science/hal-00401223 Global and Planetary Change, 2009, 65 (1-2), pp.83-88. ⟨10.1016/j.gloplacha.2008.10.004⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.gloplacha.2008.10.004 hal-00401223 https://hal.science/hal-00401223 https://hal.science/hal-00401223/document https://hal.science/hal-00401223/file/Cazenave_et_al_GPC_2009.pdf doi:10.1016/j.gloplacha.2008.10.004 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.gloplacha.2008.10.004 |
container_title |
Global and Planetary Change |
container_volume |
65 |
container_issue |
1-2 |
container_start_page |
83 |
op_container_end_page |
88 |
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1766168070845366272 |
spelling |
ftunivnantes:oai:HAL:hal-00401223v1 2023-05-15T13:42:27+02:00 Sea level budget over 2003-2008: A reevaluation from GRACE space gravimetry, satellite altimetry and Argo Cazenave, A. Dominh, K. Guinehut, S. Berthier, E. Llovel, W. Ramillien, G. Ablain, M. Larnicol, G. Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS) Collecte Localisation Satellites (CLS) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National d'Études Spatiales Toulouse (CNES) 2009 https://hal.science/hal-00401223 https://hal.science/hal-00401223/document https://hal.science/hal-00401223/file/Cazenave_et_al_GPC_2009.pdf https://doi.org/10.1016/j.gloplacha.2008.10.004 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.gloplacha.2008.10.004 hal-00401223 https://hal.science/hal-00401223 https://hal.science/hal-00401223/document https://hal.science/hal-00401223/file/Cazenave_et_al_GPC_2009.pdf doi:10.1016/j.gloplacha.2008.10.004 info:eu-repo/semantics/OpenAccess ISSN: 0921-8181 Global and Planetary Change https://hal.science/hal-00401223 Global and Planetary Change, 2009, 65 (1-2), pp.83-88. ⟨10.1016/j.gloplacha.2008.10.004⟩ sea-level thermal expansion ice melt climate ICE MASS-LOSS ANTARCTICA GREENLAND BALANCE TEMPERATURE SHEETS [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2009 ftunivnantes https://doi.org/10.1016/j.gloplacha.2008.10.004 2023-02-22T00:33:36Z 0921-8181 From the IPCC 4th Assessment Report published in 2007, ocean thermal expansion contributed by similar to 50% to the 3.1 mm/yr observed global mean sea level rise during the 1993-2003 decade, the remaining rate of rise being essentially explained by shrinking of land ice. Recently published results suggest that since about 2003, ocean thermal expansion change, based on the newly deployed Argo system, is showing a plateau while sea level is still rising, although at a reduced rate (similar to 2.5 mm/yr). Using space gravimetry observations from GRACE, we show that recent years sea level rise can be mostly explained by an increase of the mass of the oceans. Estimating GRACE-based ice sheet mass balance and using published estimates for glaciers melting, we further show that ocean mass increase since 2003 results by about half from an enhanced contribution of the polar ice sheets - compared to the previous decade - and half from mountain glaciers melting. Taking also into account the small GRACE-based contribution from continental waters (<0.2 mm/yr), we find a total ocean mass contribution of similar to 2 mm/yr over 2003-2008. Such a value represents similar to 80% of the altimetry-based rate of sea level rise over that period. We next estimate the steric sea level (i.e., ocean thermal expansion plus salinity effects) contribution from: (1) the difference between altimetry-based sea level and ocean mass change and (2) Argo data. Inferred steric sea level rate from (1) (similar to 0.3 mm/yr over 2003-2008) agrees well with the Argo-based value also estimated here (0.37 mm/yr over 2004-2008). Furthermore, the sea level budget approach presented in this study allows us to constrain independent estimates of the Glacial Isostatic Adjustment (GIA) correction applied to GRACE-based ocean and ice sheet mass changes, as well as of glaciers melting. Values for the CIA correction and glacier contribution needed to close the sea level budget and explain GRACE-based mass estimates over the recent years agree well ... Article in Journal/Newspaper Antarc* Antarctica glacier Greenland Ice Sheet Université de Nantes: HAL-UNIV-NANTES Greenland Global and Planetary Change 65 1-2 83 88 |