A reconciled estimate of ice-sheet mass balance.

Andrew Shepherd; Erik R Ivins; Geruo A; Valentina Roberta Barletta; Mike J Bentley; Srinivas Bettadpur; Kate H Briggs; David H Bromwich; René Forsberg; Natalia Galin; Martin Horwath; Stan Jacobs; Ian Joughin; Matt A King; Jan T M Lenaerts; Jilu Li; Stefan R M Ligtenberg; Adrian Luckman; Scott B Luthcke; Malcolm McMillan; Rakia Meister; Glenn Milne; Jeremie Mouginot; Alan Muir; Julien P Nicolas; John Paden; Antony J Payne; Hamish Pritchard; Eric Rignot; Helmut Rott; Louise Sandberg Sørensen; Ted A Scambos; Bernd Scheuchl; Ernst J O Schrama; Ben Smith; Aud V Sundal; Jan H van Angelen; Willem J van de Berg; Michiel R van den Broeke; David Vaughan; Isabella Velicogna; John Wahr; Pippa L Whitehouse; Duncan J Wingham; Donghui Yi; Duncan Young; H Jay Zwally

doi:10.1126/science.1228102

A reconciled estimate of ice-sheet mass balance.

Andrew Shepherd, Erik R Ivins, Geruo A, Valentina Roberta Barletta, Mike J Bentley, Srinivas Bettadpur, Kate H Briggs, David H Bromwich, René Forsberg, Natalia Galin, Martin Horwath, Stan Jacobs, Ian Joughin, Matt A King, Jan T M Lenaerts, Jilu Li, Stefan R M Ligtenberg, Adrian Luckman, Scott B Luthcke, Malcolm McMillanRakia Meister, Glenn Milne, Jeremie Mouginot, Alan Muir, Julien P Nicolas, John Paden, Antony J Payne, Hamish Pritchard, Eric Rignot, Helmut Rott, Louise Sandberg Sørensen, Ted A Scambos, Bernd Scheuchl, Ernst J O Schrama, Ben Smith, Aud V Sundal, Jan H van Angelen, Willem J van de Berg, Michiel R van den Broeke, David Vaughan, Isabella Velicogna, John Wahr, Pippa L Whitehouse, Duncan J Wingham, Donghui Yi, Duncan Young, H Jay Zwally

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

We combined an ensemble of satellite altimetry, interferometry, and gravimetry data sets using common geographical regions, time intervals, and models of surface mass balance and glacial isostatic adjustment to estimate the mass balance of Earth's polar ice sheets. We find that there is good agreement between different satellite methods--especially in Greenland and West Antarctica--and that combining satellite data sets leads to greater certainty. Between 1992 and 2011, the ice sheets of Greenland, East Antarctica, West Antarctica, and the Antarctic Peninsula changed in mass by -142 ± 49, +14 ± 43, -65 ± 26, and -20 ± 14 gigatonnes year(-1), respectively. Since 1992, the polar ice sheets have contributed, on average, 0.59 ± 0.20 millimeter year(-1) to the rate of global sea-level rise.

Original language	English
Journal	Science
Volume	338
Issue number	6111
Pages (from-to)	1183-1189
ISSN	0036-8075
DOIs	https://doi.org/10.1126/science.1228102
Publication status	Published - 2012

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Shepherd, A., Ivins, E. R., A, G., Barletta, V. R., Bentley, M. J., Bettadpur, S., Briggs, K. H., Bromwich, D. H., Forsberg, R., Galin, N., Horwath, M., Jacobs, S., Joughin, I., King, M. A., Lenaerts, J. T. M., Li, J., Ligtenberg, S. R. M., Luckman, A., Luthcke, S. B., ... Zwally, H. J. (2012). A reconciled estimate of ice-sheet mass balance. Science, 338(6111), 1183-1189. https://doi.org/10.1126/science.1228102

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title = "A reconciled estimate of ice-sheet mass balance.",

abstract = "We combined an ensemble of satellite altimetry, interferometry, and gravimetry data sets using common geographical regions, time intervals, and models of surface mass balance and glacial isostatic adjustment to estimate the mass balance of Earth's polar ice sheets. We find that there is good agreement between different satellite methods--especially in Greenland and West Antarctica--and that combining satellite data sets leads to greater certainty. Between 1992 and 2011, the ice sheets of Greenland, East Antarctica, West Antarctica, and the Antarctic Peninsula changed in mass by -142 ± 49, +14 ± 43, -65 ± 26, and -20 ± 14 gigatonnes year(-1), respectively. Since 1992, the polar ice sheets have contributed, on average, 0.59 ± 0.20 millimeter year(-1) to the rate of global sea-level rise.",

author = "Andrew Shepherd and Ivins, {Erik R} and Geruo A and Barletta, {Valentina Roberta} and Bentley, {Mike J} and Srinivas Bettadpur and Briggs, {Kate H} and Bromwich, {David H} and Ren{\'e} Forsberg and Natalia Galin and Martin Horwath and Stan Jacobs and Ian Joughin and King, {Matt A} and Lenaerts, {Jan T M} and Jilu Li and Ligtenberg, {Stefan R M} and Adrian Luckman and Luthcke, {Scott B} and Malcolm McMillan and Rakia Meister and Glenn Milne and Jeremie Mouginot and Alan Muir and Nicolas, {Julien P} and John Paden and Payne, {Antony J} and Hamish Pritchard and Eric Rignot and Helmut Rott and S{\o}rensen, {Louise Sandberg} and Scambos, {Ted A} and Bernd Scheuchl and Schrama, {Ernst J O} and Ben Smith and Sundal, {Aud V} and {van Angelen}, {Jan H} and {van de Berg}, {Willem J} and {van den Broeke}, {Michiel R} and David Vaughan and Isabella Velicogna and John Wahr and Whitehouse, {Pippa L} and Wingham, {Duncan J} and Donghui Yi and Duncan Young and Zwally, {H Jay}",

year = "2012",

doi = "10.1126/science.1228102",

language = "English",

volume = "338",

pages = "1183--1189",

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Shepherd, A, Ivins, ER, A, G, Barletta, VR, Bentley, MJ, Bettadpur, S, Briggs, KH, Bromwich, DH, Forsberg, R, Galin, N, Horwath, M, Jacobs, S, Joughin, I, King, MA, Lenaerts, JTM, Li, J, Ligtenberg, SRM, Luckman, A, Luthcke, SB, McMillan, M, Meister, R, Milne, G, Mouginot, J, Muir, A, Nicolas, JP, Paden, J, Payne, AJ, Pritchard, H, Rignot, E, Rott, H, Sørensen, LS, Scambos, TA, Scheuchl, B, Schrama, EJO, Smith, B, Sundal, AV, van Angelen, JH, van de Berg, WJ, van den Broeke, MR, Vaughan, D, Velicogna, I, Wahr, J, Whitehouse, PL, Wingham, DJ, Yi, D, Young, D & Zwally, HJ 2012, 'A reconciled estimate of ice-sheet mass balance.', Science, vol. 338, no. 6111, pp. 1183-1189. https://doi.org/10.1126/science.1228102

TY - JOUR

T1 - A reconciled estimate of ice-sheet mass balance.

AU - Shepherd, Andrew

AU - Ivins, Erik R

AU - A, Geruo

AU - Barletta, Valentina Roberta

AU - Bentley, Mike J

AU - Bettadpur, Srinivas

AU - Briggs, Kate H

AU - Bromwich, David H

AU - Forsberg, René

AU - Galin, Natalia

AU - Horwath, Martin

AU - Jacobs, Stan

AU - Joughin, Ian

AU - King, Matt A

AU - Lenaerts, Jan T M

AU - Li, Jilu

AU - Ligtenberg, Stefan R M

AU - Luckman, Adrian

AU - Luthcke, Scott B

AU - McMillan, Malcolm

AU - Meister, Rakia

AU - Milne, Glenn

AU - Mouginot, Jeremie

AU - Muir, Alan

AU - Nicolas, Julien P

AU - Paden, John

AU - Payne, Antony J

AU - Pritchard, Hamish

AU - Rignot, Eric

AU - Rott, Helmut

AU - Sørensen, Louise Sandberg

AU - Scambos, Ted A

AU - Scheuchl, Bernd

AU - Schrama, Ernst J O

AU - Smith, Ben

AU - Sundal, Aud V

AU - van Angelen, Jan H

AU - van de Berg, Willem J

AU - van den Broeke, Michiel R

AU - Vaughan, David

AU - Velicogna, Isabella

AU - Wahr, John

AU - Whitehouse, Pippa L

AU - Wingham, Duncan J

AU - Yi, Donghui

AU - Young, Duncan

AU - Zwally, H Jay

PY - 2012

Y1 - 2012

N2 - We combined an ensemble of satellite altimetry, interferometry, and gravimetry data sets using common geographical regions, time intervals, and models of surface mass balance and glacial isostatic adjustment to estimate the mass balance of Earth's polar ice sheets. We find that there is good agreement between different satellite methods--especially in Greenland and West Antarctica--and that combining satellite data sets leads to greater certainty. Between 1992 and 2011, the ice sheets of Greenland, East Antarctica, West Antarctica, and the Antarctic Peninsula changed in mass by -142 ± 49, +14 ± 43, -65 ± 26, and -20 ± 14 gigatonnes year(-1), respectively. Since 1992, the polar ice sheets have contributed, on average, 0.59 ± 0.20 millimeter year(-1) to the rate of global sea-level rise.

AB - We combined an ensemble of satellite altimetry, interferometry, and gravimetry data sets using common geographical regions, time intervals, and models of surface mass balance and glacial isostatic adjustment to estimate the mass balance of Earth's polar ice sheets. We find that there is good agreement between different satellite methods--especially in Greenland and West Antarctica--and that combining satellite data sets leads to greater certainty. Between 1992 and 2011, the ice sheets of Greenland, East Antarctica, West Antarctica, and the Antarctic Peninsula changed in mass by -142 ± 49, +14 ± 43, -65 ± 26, and -20 ± 14 gigatonnes year(-1), respectively. Since 1992, the polar ice sheets have contributed, on average, 0.59 ± 0.20 millimeter year(-1) to the rate of global sea-level rise.

U2 - 10.1126/science.1228102

DO - 10.1126/science.1228102

M3 - Journal article

VL - 338

SP - 1183

EP - 1189

JO - Science

JF - Science

SN - 0036-8075

IS - 6111

ER -

A reconciled estimate of ice-sheet mass balance.

Abstract

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