Global sea-level budget 1993 - present
Anny Cazenave,Benoit Meyssignac,Michael Ablain,Magdalena Balmaseda,Jonathan L. Bamber,Valentina R. Barletta,Brian D. Beckley,Jérôme Benveniste,Etienne Berthier,Alejandro Blazquez,Timothy P. Boyer,Denise Cáceres,Don P. Chambers,Nicolas Champollion,Ben Chao,Jianli Chen,Lijing Cheng,John A. Church,Stephen Chuter,J. Graham Cogley,Soenke Dangendorf,Damien Desbruyères,Petra Döll,Catia M. Domingues,Ulrike Falk,James S. Famiglietti,Luciana Fenoglio-Marc,René Forsberg,Gaia Galassi,Alex S. Gardner,Andreas Groh,Benjamin D. Hamlington,Anna E. Hogg,Martin Horwath,Vincent Humphrey,Laurent Husson,Masayoshi Ishii,A. Jaeggi,Svetlana Jevrejeva,Gregory C. Johnson,Nicolas Kolodziejczyk,Jürgen Kusche,Kurt Lambeck,Felix W. Landerer,P. W. Leclercq,Benoit Legresy,Eric Leuliette,William Llovel,Laurent Longuevergne,Bryant D. Loomis,Scott B. Luthcke,Marta Marcos,Ben Marzeion,Christopher J. Merchant,Mark A. Merrifield,Glenn A. Milne,Gary T. Mitchum,Yara Mohajerani,Maeva Monier,Didier Monselesan,Steve Nerem,Hindumathi Palanisamy,Frank Paul,Begoña Pérez,Christopher G. Piecuch,Rui M. Ponte,Sarah G. Purkey,John T. Reager,Roelof Rietbroek,Eric Rignot,Riccardo Riva,Dean Roemmich,Louise Sandberg Sørensen,Ingo Sasgen,E.J.O. Schram,Sonia I. Seneviratne,C. K. Shum,Giorgio Spada,Detlef Stammer,Roderic van de Wal,Isabella Velicogna,Karina von Schuckmann,Yoshihide Wada,Yiguo Wang,Christopher Watson,David N. Wiese,Susan Wijffels,Richard M. Westaway,Guy Wöppelmann,Bert Wouters +89 more
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TLDR
In this paper, the authors present estimates of the altimetry-based global mean sea level (average variance of 3.1 +/- 0.3 mm/yr and acceleration of 0.1 mm/r2 over 1993-present), as well as of the different components of the sea level budget over 2005-present, using GRACE-based ocean mass estimates.Abstract:
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 detecting changes (e.g., acceleration) 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 data sets used to estimate
components of the sea level budget during the altimetry era (1993 to present). These data sets
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 fifty
research teams/institutions worldwide (www.wcrp-climate.org/grand-challenges/gc-sea-
level). 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 +/- 0.3 mm/yr and acceleration of 0.1 mm/yr2 over 1993-present), as well as of the
different components of the sea level budget (http://doi.org/10.17882/54854). 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 by 42%, 21%, 15% and 8% to the global mean sea level over the 1993-present. We
also study the sea level budget over 2005-present, using GRACE-based ocean mass estimates
instead of sum of individual mass components. Results show closure of the sea level budget
within 0.3 mm/yr. Substantial uncertainty remains for the land water storage component, as
shown in examining individual mass contributions to sea level.read more
Citations
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Journal Article
Climate Change 2007: The Physical Science Basis.
Stefano Schiavon,Roberto Zecchin +1 more
TL;DR: In this article, the authors present a document, redatto, voted and pubblicato by the Ipcc -Comitato intergovernativo sui cambiamenti climatici - illustra la sintesi delle ricerche svolte su questo tema rilevante.
Sea Level Rise and Implications for Low Lying Islands, Coasts and Communities
Michael Oppenheimer,Bruce Glavovic,Jochen Hinkel,Roderik S. W. van de Wal,Alexandre K. Magnan,Amro Abd-Elgawad,Rongshuo Cai,Miguel Cifuentes-Jara,Robert M. DeConto,Tuhin Ghosh,John E. Hay,Federico Ignacio Isla,Ben Marzeion,Benoit Meyssignac,Zita Sebesvari +14 more
TL;DR: In this paper, Abd Elgawad et al. discuss the sea level rise and its implications for low lying islands, coastlines and communities in the Middle East and Asia.
Journal ArticleDOI
Contributions of GRACE to understanding climate change.
Byron D. Tapley,Michael M. Watkins,Frank Flechtner,Christoph Reigber,Srinivas Bettadpur,Matthew Rodell,Ingo Sasgen,James S. Famiglietti,Felix W. Landerer,Don P. Chambers,John T. Reager,Alex S. Gardner,Himanshu Save,Erik R. Ivins,Sean Swenson,Carmen Boening,Christoph Dahle,David N. Wiese,Henryk Dobslaw,Mark E. Tamisiea,Isabella Velicogna +20 more
TL;DR: The Gravity Recovery and Climate Experiment mission allows monitoring of changes in hydrology and the cryosphere with terrestrial and ocean applications and its contribution to the detection and quantification of climate change signals is focused on.
Journal ArticleDOI
Mass balance of the Greenland Ice Sheet from 1992 to 2018
TL;DR: Comparing and combining 26 individual satellite measurements of changes in the Greenland Ice Sheet’s volume, flow and gravitational potential to produce a reconciled estimate of its mass balance produces comparable results that approach the trajectory of the highest rates of sea-level rise projected by the IPCC.
Journal ArticleDOI
Accelerated global glacier mass loss in the early twenty-first century
Romain Hugonnet,Romain Hugonnet,Romain Hugonnet,Robert McNabb,Robert McNabb,Etienne Berthier,Brian Menounos,Christopher Nuth,Luc Girod,Daniel Farinotti,Daniel Farinotti,Matthias Huss,Matthias Huss,Matthias Huss,Ines Dussaillant,Ines Dussaillant,Fanny Brun,Andreas Kääb +17 more
TL;DR: In this paper, the authors show that during 2000-2019, glaciers lost a mass of 267 −±−16 gigatonnes per year, equivalent to 21 −−3 per cent of the observed sea-level rise.
References
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Climate change 2007: the physical science basis
Susan Solomon,Dahe Qin,Martin R. Manning,Melinda Marquis,Kristen Averyt,Melinda M.B. Tignor,H. L. Miller,Z. Chen +7 more
TL;DR: The first volume of the IPCC's Fourth Assessment Report as mentioned in this paper was published in 2007 and covers several topics including the extensive range of observations now available for the atmosphere and surface, changes in sea level, assesses the paleoclimatic perspective, climate change causes both natural and anthropogenic, and climate models for projections of global climate.
Contribution of Working Group II to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change
TL;DR: Drafting Authors: Neil Adger, Pramod Aggarwal, Shardul Agrawala, Joseph Alcamo, Abdelkader Allali, Oleg Anisimov, Nigel Arnell, Michel Boko, Osvaldo Canziani, Timothy Carter, Gino Casassa, Ulisses Confalonieri, Rex Victor Cruz, Edmundo de Alba Alcaraz, William Easterling, Christopher Field, Andreas Fischlin, Blair Fitzharris.
Journal Article
Climate Change 2007: The Physical Science Basis.
Stefano Schiavon,Roberto Zecchin +1 more
TL;DR: In this article, the authors present a document, redatto, voted and pubblicato by the Ipcc -Comitato intergovernativo sui cambiamenti climatici - illustra la sintesi delle ricerche svolte su questo tema rilevante.
Journal ArticleDOI
Global Hydrological Cycles and World Water Resources
TL;DR: In this paper, the authors focus on the flow of water in natural and artificial reservoirs and reduce the vulnerability of people living under water stress to seasonal patterns and increasing probability of extreme events.
Global hydrological cycles and world water resources
TL;DR: Climate change is expected to accelerate water cycles and thereby increase the available RFWR, which would slow down the increase of people living under water stress; however, changes in seasonal patterns and increasing probability of extreme events may offset this effect.
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