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dc.contributor.author
Hugonnet, Romain
dc.contributor.author
McNabb, Robert
dc.contributor.author
Berthier, Etienne
dc.contributor.author
Menounos, Brian
dc.contributor.author
Nuth, Christopher
dc.contributor.author
Girod, Luc
dc.contributor.author
Farinotti, Daniel
dc.contributor.author
Huss, Matthias
dc.contributor.author
Dussaillant, Inés
dc.contributor.author
Brun, Fanny
dc.contributor.author
Kääb, Andreas
dc.date.accessioned
2021-05-10T07:54:50Z
dc.date.available
2021-05-10T07:17:34Z
dc.date.available
2021-05-10T07:54:50Z
dc.date.issued
2021-04-29
dc.identifier.issn
0028-0836
dc.identifier.issn
1476-4687
dc.identifier.other
10.1038/s41586-021-03436-z
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/483252
dc.description.abstract
Glaciers distinct from the Greenland and Antarctic ice sheets are shrinking rapidly, altering regional hydrology1, raising global sea level2 and elevating natural hazards3. Yet, owing to the scarcity of constrained mass loss observations, glacier evolution during the satellite era is known only partially, as a geographic and temporal patchwork4,5. Here we reveal the accelerated, albeit contrasting, patterns of glacier mass loss during the early twenty-first century. Using largely untapped satellite archives, we chart surface elevation changes at a high spatiotemporal resolution over all of Earth’s glaciers. We extensively validate our estimates against independent, high-precision measurements and present a globally complete and consistent estimate of glacier mass change. We 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 rise6. We identify a mass loss acceleration of 48 ± 16 gigatonnes per year per decade, explaining 6 to 19 per cent of the observed acceleration of sea-level rise. Particularly, thinning rates of glaciers outside ice sheet peripheries doubled over the past two decades. Glaciers currently lose more mass, and at similar or larger acceleration rates, than the Greenland or Antarctic ice sheets taken separately7,8,9. By uncovering the patterns of mass change in many regions, we find contrasting glacier fluctuations that agree with the decadal variability in precipitation and temperature. These include a North Atlantic anomaly of decelerated mass loss, a strongly accelerated loss from northwestern American glaciers, and the apparent end of the Karakoram anomaly of mass gain10. We anticipate our highly resolved estimates to advance the understanding of drivers that govern the distribution of glacier change, and to extend our capabilities of predicting these changes at all scales. Predictions robustly benchmarked against observations are critically needed to design adaptive policies for the local- and regional-scale management of water resources and cryospheric risks, as well as for the global-scale mitigation of sea-level rise.
en_US
dc.language.iso
en
en_US
dc.publisher
Springer
dc.title
Accelerated global glacier mass loss in the early twenty-first century
en_US
dc.type
Journal Article
dc.date.published
2021-04-28
ethz.journal.title
Nature
ethz.journal.volume
592
en_US
ethz.journal.issue
7856
en_US
ethz.pages.start
726
en_US
ethz.pages.end
731
en_US
ethz.grant
Process-based modelling of global glacier changes (PROGGRES)
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
London
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02611 - V. Wasserbau, Hydrologie u. Glaziologie / Lab. Hydraulics,Hydrology,Glaciology::09599 - Farinotti, Daniel / Farinotti, Daniel
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02611 - V. Wasserbau, Hydrologie u. Glaziologie / Lab. Hydraulics,Hydrology,Glaciology::09599 - Farinotti, Daniel / Farinotti, Daniel
en_US
ethz.grant.agreementno
184634
ethz.grant.fundername
SNF
ethz.grant.funderDoi
10.13039/501100001711
ethz.grant.program
Projekte MINT
ethz.date.deposited
2021-05-10T07:17:45Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2021-05-10T07:55:26Z
ethz.rosetta.lastUpdated
2024-02-02T13:40:11Z
ethz.rosetta.versionExported
true
ethz.COinS
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