作者
Anny Cazenave, Benoit Meyssignac, Michael Ablain, Magdalena Balmaseda, Jonathan Bamber, Valentina Barletta, Brian Beckley, Jerome Benveniste, Etienne Berthier, Alejandro Blazquez, Tim Boyer, Denise Caceres, Don Chambers, Nicolas Champollion, Ben Chao, Jianli Chen, Lijing Cheng, John A Church, Stephen Chuter, J Graham Cogley, Soenke Dangendorf, D DesbruyA, Catia Domingues, Ulrike Falk, James Famiglietti, Luciana Fenoglio-Marc, René Forsberg, Gaia Galassi, Alex Gardner, Andreas Groh, Benjamin Hamlington, Anna Hogg, Martin Horwath, Vincent Humphrey, Laurent Husson, Masayoshi Ishii, Adrian Jaeggi, Svetlana Jevrejeva, Gregory Johnson, Nicolas Kolodziejczyk, Jürgen Kusche, Kurt Lambeck, Felix Landerer, P Leclercq, Benoit Legresy, Eric Leuliette, William Llovel, W Longuevergne, Bryant D Loomis, Scott B Luthcke, Marta Marcos, Ben Marzeion, Chris Merchant, Mark Merrifield, Glenn Milne, Gary Mitchum, Yara Mohajerani, Maeva Monier, Didier Monselesan, Steve Nerem, Hindumathi Palanisamy, Frank Paul, Begoña Perez, Christopher G Piecuch, Rui M Ponte, Sarah G Purkey, John T Reager, Roelof Rietbroek, Eric Rignot, Riccardo Riva, Dean H Roemmich, I Sasgen, EJO Schrama, SI Seneviratne, CK Shum, G Spada, D Stammer, R van de Wal, I Velicogna, Kv Schuckmann, Y Wada, Y Wang, Christopher Watson, D Wiese, S Wijffels, R Westaway, G Woppelmann, B Wouters
发表日期
2018/1/1
出版商
University Of Tasmania
简介
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 …
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