| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Global sea-level budget 1993-present
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| Autores: |
Cazenave, Anny
Meyssignac, Benoit
Ablain, Michael
Balmaseda, Magdalena
Bamber, Jonathan
Barletta, Valentina
Beckley, Brian
Benveniste, Jerome
Berthier, Etienne
Blazquez, Alejandro
Boyer, Tim
Caceres, Denise
Chambers, Don
Champollion, Nicolas
Chao, Ben
Chen, Jianli
Cheng, Lijing
Church, John A.
Chuter, Stephen
Cogley, J. Graham
Dangendorf, Soenke
Desbruyeres, Damien
Doell, Petra
Domingues, Catia
Falk, Ulrike
Famiglietti, James
Fenoglio-marc, Luciana
Forsberg, Rene
Galassi, Gaia
Gardner, Alex
Groh, Andreas
Hamlington, Benjamin
Hogg, Anna
Horwath, Martin
Humphrey, Vincent
Husson, Laurent
Ishii, Masayoshi
Jaeggi, Adrian
Jevrejeva, Svetlana
Johnson, Gregory
Kolodziejczyk, Nicolas
Kusche, Juergen
Lambeck, Kurt
Landerer, Felix
Leclercq, Paul
Legresy, Benoit
Leuliette, Eric
Llovel, William
Longuevergne, Laurent
Loomis, Bryant D.
Luthcke, Scott B.
Marcos, Marta
Marzeion, Ben
Merchant, Chris
Merrifield, Mark
Milne, Glenn
Mitchum, Gary
Mohajerani, Yara
Monier, Maeva
Monselesan, Didier
Nerem, Steve
Palanisamy, Hindumathi
Paul, Frank
Perez, Begona
Piecuch, Christopher G.
Ponte, Rui M.
Purkey, Sarah G.
Reager, John T.
Rietbroek, Roelof
Rignot, Eric
Riva, Riccardo
Roemmich, Dean H.
Sorensen, Louise Sandberg
Sasgen, Ingo
Schrama, E. J. O.
Seneviratne, Sonia I.
Shum, C. K.
Spada, Giorgio
Stammer, Detlef
Van De Wal, Roderic
Velicogna, Isabella
Von Schuckmann, Karina
Wada, Yoshihide
Wang, Yiguo
Watson, Christopher
Wiese, David
Wijffels, Susan
Westaway, Richard
Woppelmann, Guy
Wouters, Bert
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| Data: |
2018-08
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| Ano: |
2018
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| Resumo: |
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 GRACE-based ocean mass estimates instead of the sum of individual mass components. Our results demonstrate that the global mean sea level can be closed to within 0.3 mm yr(-1) (1 sigma). Substantial uncertainty remains for the land water storage component, as shown when examining individual mass contributions to sea level.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00454/56564/58270.pdf
DOI:10.5194/essd-10-1551-2018
https://archimer.ifremer.fr/doc/00454/56564/
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| Editor: |
Copernicus Gesellschaft Mbh
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| Formato: |
application/pdf
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| Fonte: |
Earth System Science Data (1866-3508) (Copernicus Gesellschaft Mbh), 2018-08 , Vol. 10 , N. 3 , P. 1551-1590
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| Direitos: |
Author(s) 2018. This work is distributed under the Creative Commons Attribution 4.0 License.
info:eu-repo/semantics/openAccess
restricted use
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