Mass balance of the Antarctic Ice Sheet from 1992 to 2017

Shepherd, Andrew; Ivins, Erik; Rignot, Eric; Smith, Ben; van den Broeke, Michiel; Velicogna, Isabella; Whitehouse, Pippa; Briggs, Kate; Joughin, Ian; Krinner, Gerhard; Nowicki, Sophie; Payne, Tony; Scambos, Ted; Schlegel, Nicole; Geruo, A.; Agosta, Cecile; Ahlstrom, Andreas; Babonis, Greg; Barletta, Valentina; Blazquez, Alejandro

doi:10.1038/s41586-018-0179-y

Mass balance of the Antarctic Ice Sheet from 1992 to 2017

Shepherd, Andrew

[1];

Ivins, Erik

[2];

Rignot, Eric

[3];

Smith, Ben

[4];

van den Broeke, Michiel

[5];

Velicogna, Isabella

[3];

Whitehouse, Pippa

[6];

Briggs, Kate

[1];

Joughin, Ian

[4];

Krinner, Gerhard

[7];

Nowicki, Sophie

[2];

Payne, Tony

[8];

Scambos, Ted

[9];

Schlegel, Nicole

[2];

Geruo, A.

[3];

Agosta, Cecile

[10];

Ahlstrom, Andreas

[11];

Babonis, Greg

[12];

Barletta, Valentina

[13];

Blazquez, Alejandro

[14];

Bonin, Jennifer

[15];

Csatho, Beata

[12];

Cullather, Richard

[2];

Felikson, Denis

[16];

Fettweis, Xavier

[10];

Forsberg, Rene

[13];

Gallee, Hubert

[7];

Gardner, Alex

[2];

Gilbert, Lin

[17];

Groh, Andreas

[18];

Gunter, Brian

[19];

Hanna, Edward

[20];

Harig, Christopher

[21];

Helm, Veit

[22];

Horvath, Alexander

[23];

Horwath, Martin

[18];

Khan, Shfaqat

[13];

Kjeldsen, Kristian K.

[11];

Konrad, Hannes

[1];

Langen, Peter

[24];

Lecavalier, Benoit

[25];

Loomis, Bryant

[2];

Luthcke, Scott

[2];

McMillan, Malcolm

[1];

Melini, Daniele

[26];

Mernild, Sebastian

[27];

Mohajerani, Yara

[3];

Moore, Philip

[28];

Mouginot, Jeremie

[3];

Moyano, Gorka

[29];

Muir, Alan

[17];

Nagler, Thomas

[30];

Nield, Grace

[6];

Nilsson, Johan

[2];

Noel, Brice

[5];

Otosaka, Ines

[1];

Pattle, Mark E.

[29];

Peltier, W. Richard

[31];

Pie, Nadege

[16];

Rietbroek, Roelof

[32];

Rott, Helmut

[30];

Sandberg-Sorensen, Louise

[13];

Sasgen, Ingo

[22];

Save, Himanshu

[16];

Scheuchl, Bernd

[3];

Schrama, Ernst

[33];

Schroeder, Ludwig

[18];

Seo, Ki-Weon

[34];

Simonsen, Sebastian

[13];

Slater, Tom

[1];

Spada, Giorgio

[35];

Sutterley, Tyler

[3];

Talpe, Matthieu

[9];

Tarasov, Lev

[25];

van de Berg, Willem Jan

[5];

van der Wal, Wouter

[33];

van Wessem, Melchior

[5];

Vishwakarma, Bramha Dutt

[36];

Wiese, David

[2];

Wouters, Bert

[5]

¹
Univ Leeds
²
National Aeronautics & Space Administration (NASA)
³
University of California System
⁴
University of Washington
⁵
Utrecht University
⁶
Durham University
⁷
Communaute Universite Grenoble Alpes
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⁹
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¹⁰
University of Liege
¹¹
Geological Survey Of Denmark & Greenland
¹²
State University of New York (SUNY) System
¹³
Technical University of Denmark
¹⁴
Spatial Geophys & Oceanog Studies Lab
¹⁵
State University System of Florida
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¹⁸
Technische Universitat Dresden
¹⁹
University System of Georgia
²⁰
University of Lincoln
²¹
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²²
Helmholtz Association
²³
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²⁴
Danish Meteorological Institute DMI
²⁵
Memorial University Newfoundland
²⁶
Istituto Nazionale Geofisica e Vulcanologia (INGV)
²⁷
Universidad de Magallanes
²⁸
Newcastle University - UK
²⁹
isardSAT
³⁰
ENVEO
³¹
University of Toronto
³²
University of Bonn
³³
Delft University of Technology
³⁴
Seoul National University (SNU)
³⁵
University of Urbino
³⁶
University of Stuttgart

DOI

10.1038/s41586-018-0179-y

Date Issued

2018-6-14

Type

Artículo

Journal

Nature

ISSN

0028-0836

1476-4687

Open Access

green

Volume

558

Start page

219

End page

222

Links

https://arca.umag.cl/handle/123456789/13695

The Antarctic Ice Sheet is an important indicator of climate change and driver of sea-level rise. Here we combine satellite observations of its changing volume, flow and gravitational attraction with modelling of its surface mass balance to show that it lost 2,720 +/- 1,390 billion tonnes of ice between 1992 and 2017, which corresponds to an increase in mean sea level of 7.6 +/- 3.9 millimetres (errors are one standard deviation). Over this period, ocean-driven melting has caused rates of ice loss from West Antarctica to increase from 53 +/- 29 billion to 159 +/- 26 billion tonnes per year; ice-shelf collapse has increased the rate of ice loss from the Antarctic Peninsula from 7 +/- 13 billion to 33 +/- 16 billion tonnes per year. We find large variations in and among model estimates of surface mass balance and glacial isostatic adjustment for East Antarctica, with its average rate of mass gain over the period 1992-2017 (5 +/- 46 billion tonnes per year) being the least certain.

Future sea level

Antarctic ice sheet

Iceberg

Name

document.pdf

Type

Main Article

Size

5.25 MB

Format

Adobe PDF

Checksum

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