Global sea-level budget 1993 - present

Research output: Contribution to journalJournal article – Annual report year: 2018Researchpeer-review

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  • Author: Group, WCRP Global Sea Level Budget

  • Author: Cazenave, Anny

    Laboratoire d’Études en Géophysique et Océanographie Spatiales, France

  • Author: Meyssignac, Benoit

    Laboratoire d’Études en Géophysique et Océanographie Spatiales, France

  • Author: Ablain, Michael

    Collecte Localisation Satellites, France

  • Author: Balmaseda, Magdalena

    European Centre for Medium-Range Weather Forecasts, United Kingdom

  • Author: Bamber, Jonathan L

    University of Bristol, United Kingdom

  • Author: Barletta, Valentina Roberta

    Geodynamics, National Space Institute, Technical University of Denmark, Elektrovej, 2800, Kgs. Lyngby, Denmark

  • Author: Beckley, Brian

    NASA Goddard Space Flight Center, United States

  • Author: Benveniste, Jérôme

    European Space Agency - ESA, France

  • Author: Berthier, Etienne

    Laboratoire d’Études en Géophysique et Océanographie Spatiales, France

  • Author: Blazquez, Alejandro

    Laboratoire d’Études en Géophysique et Océanographie Spatiales, France

  • Author: Boyer , Tim

    NOAA, United States

  • Author: Caceres , Denise

    Goethe University Frankfurt, Germany

  • Author: Chambers, Don P.

    University of South Florida, United States

  • Author: Champollion, Nicolas

    University of Bremen, Germany

  • Author: Chao , Ben

    Academia Sinica - Institute of Earth Sciences, China

  • Author: Chen , Jianli

    University of Texas, United States

  • Author: Cheng , Lijing

    Chinese Academy of Sciences, China

  • Author: Church , John A.

    University of New South Wales, Australia

  • Author: Chuter, Stephen

    University of Bristol, United Kingdom

  • Author: Cogley , J. Graham

    Trent University, Canada

  • Author: Dangendorf , Soenke

    University of Siegen, Germany

  • Author: Desbruyères , Damien

    L'Institut Français de Recherche pour l'Exploitation de la Mer, France

  • Author: Döll , Petra

    Goethe University Frankfurt, Germany

  • Author: Domingues, Catia

    CSIRO, Australia

  • Author: Falk , Ulrike

    University of Bremen, Germany

  • Author: Famiglietti , James

    California Institute of Technology, United States

  • Author: Fenoglio-Marc, Luciana

    University of Bonn, Germany

  • Author: Forsberg, René

    Geodynamics, National Space Institute, Technical University of Denmark, Elektrovej, 2800, Kgs. Lyngby, Denmark

  • Author: Galassi , Gaia

    University of Urbino, Italy

  • Author: Gardner, Alex

    California Institute of Technology, United States

  • Author: Groh, Andreas

    Technische Universität Dresden, Germany

  • Author: Hamlington , Benjamin

    Old Dominion University, United States

  • Author: Hogg, Anna

    University of Leeds, United Kingdom

  • Author: Horwath, Martin

    Technische Universität Dresden, Germany

  • Author: Humphrey , Vincent

    Swiss Federal Institute of Technology, Switzerland

  • Author: Husson , Laurent

    University of Grenoble, France

  • Author: Ishii , Masayoshi

    Meteorological Research Institute, Japan

  • Author: Jaeggi , Adrian

    University of Bern, Switzerland

  • Author: Jevrejeva , Svetlana

    NOC, United Kingdom

  • Author: Johnson , Gregory

    NOAA, United States

  • Author: Kolodziejczyk , Nicolas

    Laboratory for Ocean Physics and Satellite Remote Sensing, France

  • Author: Kusche , Jürgen

    University of Bonn, Germany

  • Author: Lambeck , Kurt

    Australian National University, Austria

  • Author: Landerer , Felix

    California Institute of Technology, United States

  • Author: Leclercq , Paul

    University of Oslo, Norway

  • Author: Legresy , Benoit

    CSIRO, Australia

  • Author: Leuliette , Eric

    NOAA, United States

  • Author: Llovel, William

    Laboratoire d’Études en Géophysique et Océanographie Spatiales, France

  • Author: Longuevergne , Laurent

    Universite de Rennes 1, France

  • Author: Loomis , Bryant D.

    NASA Goddard Space Flight Center, United States

  • Author: Luthcke, Scott B

    NASA Goddard Space Flight Center, United States

  • Author: Marcos, Marta

    Universitat de les Illes Balears, Spain

  • Author: Marzeion , Ben

    University of Bremen, Germany

  • Author: Merchant , Chris

    University of Reading, United Kingdom

  • Author: Merrifield , Mark

    University of California at San Diego, United States

  • Author: Milne, Glenn

    University of Ottawa, Canada

  • Author: Mitchum , Gary

    University of South Florida, United States

  • Author: Mohajerani, Yara

    University of California at Irvine, United States

  • Author: Monier , Maeva

    Mercator Océan, France

  • Author: Monselesan , Didier

    CSIRO, Australia

  • Author: Nerem , Steve

    University of Colorado, United States

  • Author: Palanisamy , Hindumathi

    Laboratoire d’Études en Géophysique et Océanographie Spatiales, France

  • Author: Paul, Frank

    University of Zurich, Switzerland

  • Author: Pérez-Villareal, Begona

    Puertos del Estados, Spain

  • Author: Piecuch , Christopher G.

    Woods Hole Oceanographic Institution, United States

  • Author: Ponte , Rui M.

    Aerodyne Research, Inc., United States

  • Author: Purkey , Sarah G.

    University of California at San Diego, United States

  • Author: Reager , John T.

    California Institute of Technology, United States

  • Author: Rietbroek , Roelof

    University of Bonn, Germany

  • Author: Rignot, Eric

    University of California at Irvine, United States

  • Author: Riva, Riccardo E.M.

    Delft University of Technology, Netherlands

  • Author: Roemmich , Dean H.

    University of California at San Diego, United States

  • Author: Sørensen, Louise Sandberg

    Geodynamics, National Space Institute, Technical University of Denmark, Elektrovej, 2800, Kgs. Lyngby, Denmark

  • Author: Sasgen, Ingo

    Alfred Wegener Institute - Helmholtz Centre for Polar and Marine Research, Germany

  • Author: Schram, E.J.O.

    Delft University of Technology, Netherlands

  • Author: Seneviratne , Sonia I.

    Swiss Federal Institute of Technology, Switzerland

  • Author: Shum, C.K.

    Ohio State University, United States

  • Author: Spada, Giorgio

    Università degli Studi di Urbino Carlo Bo, Italy

  • Author: Stammer, Detlef

    University of Hamburg, Germany

  • Author: van de Wal , Roderic

    Utrecht University, Netherlands

  • Author: Velicogna, Isabella

    University of California, United States

  • Author: von Schuckmann, Karina

    Mercator Océan, France

  • Author: Wada, Yoshihide

    Utrecht University, Netherlands

  • Author: Wang , Yiguo

    Bjerknes Centre for Climate Research, Norway

  • Author: Watson, Christopher S.

    University of Tasmania, Australia

  • Author: Wiese, David

    California Institute of Technology, United States

  • Author: Wijffels , Susan

    CSIRO, Australia

  • Author: Westaway , Richard

    University of Bristol, United Kingdom

  • Author: Woppelmann, Guy

    Universite de La Rochelle, France

  • Author: Wouters, Bert

    Utrecht University, Netherlands

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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±0.3mmyr−1 and acceleration of 0.1mmyr−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 0.3mmyr−1 (1σ). Substantial uncertainty remains for the land water storage component, as shown when examining individual mass contributions to sea level.
Original languageEnglish
JournalEarth System Science Data
Volume10
Issue number3
Pages (from-to)1551-1590
ISSN1866-3508
DOIs
Publication statusPublished - 2018

Bibliographical note

© Author(s) 2018. This work is distributed under the Creative Commons Attribution 4.0 License.

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