Acceleration of the GrIS mass loss as observed by GRACE

Peter Limkilde Svendsen; Ole Baltazar Andersen; Allan Aasbjerg Nielsen

Acceleration of the GrIS mass loss as observed by GRACE

Peter Limkilde Svendsen, Ole Baltazar Andersen, Allan Aasbjerg Nielsen

Research output: Contribution to journal › Conference abstract in journal › Research › peer-review

Abstract

The mass loss of the Greenland Ice Sheet (GrIS) has previously been analysed in a variety of ways, including altimetry, gravimetry and mass budget calculations, establishing a continuing decrease in the ice mass, with a number of studies finding acceleration in the mass loss. Here, we examine this acceleration and its statistical significance, using different sets of processed gravimetric data from the GRACE mission. Using an OLS model that takes annual and subannual variation into account, we compare three different GRACE solutions, determining the spatial variability of the acceleration and confidence intervals for the overall acceleration, with additional qualitative evaluation from ICESat data.

Original language	English
Journal	Geophysical Research Abstracts
Volume	14
Pages (from-to)	EGU2012-2734
Number of pages	1
ISSN	1607-7962
Publication status	Published - 2012
Event	European Geosciences Union General Assembly 2012 - Vienna, Austria Duration: 22 Apr 2012 → 27 Apr 2012 Conference number: 9 http://www.egu2012.eu/home.html

Conference

Conference	European Geosciences Union General Assembly 2012
Number	9
Country/Territory	Austria
City	Vienna
Period	22/04/2012 → 27/04/2012
Internet address	http://www.egu2012.eu/home.html

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title = "Acceleration of the GrIS mass loss as observed by GRACE",

abstract = "The mass loss of the Greenland Ice Sheet (GrIS) has previously been analysed in a variety of ways, including altimetry, gravimetry and mass budget calculations, establishing a continuing decrease in the ice mass, with a number of studies finding acceleration in the mass loss. Here, we examine this acceleration and its statistical significance, using different sets of processed gravimetric data from the GRACE mission. Using an OLS model that takes annual and subannual variation into account, we compare three different GRACE solutions, determining the spatial variability of the acceleration and confidence intervals for the overall acceleration, with additional qualitative evaluation from ICESat data. ",

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year = "2012",

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TY - ABST

T1 - Acceleration of the GrIS mass loss as observed by GRACE

AU - Svendsen, Peter Limkilde

AU - Andersen, Ole Baltazar

AU - Nielsen, Allan Aasbjerg

N1 - Conference code: 9

PY - 2012

Y1 - 2012

N2 - The mass loss of the Greenland Ice Sheet (GrIS) has previously been analysed in a variety of ways, including altimetry, gravimetry and mass budget calculations, establishing a continuing decrease in the ice mass, with a number of studies finding acceleration in the mass loss. Here, we examine this acceleration and its statistical significance, using different sets of processed gravimetric data from the GRACE mission. Using an OLS model that takes annual and subannual variation into account, we compare three different GRACE solutions, determining the spatial variability of the acceleration and confidence intervals for the overall acceleration, with additional qualitative evaluation from ICESat data.

AB - The mass loss of the Greenland Ice Sheet (GrIS) has previously been analysed in a variety of ways, including altimetry, gravimetry and mass budget calculations, establishing a continuing decrease in the ice mass, with a number of studies finding acceleration in the mass loss. Here, we examine this acceleration and its statistical significance, using different sets of processed gravimetric data from the GRACE mission. Using an OLS model that takes annual and subannual variation into account, we compare three different GRACE solutions, determining the spatial variability of the acceleration and confidence intervals for the overall acceleration, with additional qualitative evaluation from ICESat data.

M3 - Conference abstract in journal

SN - 1607-7962

VL - 14

SP - EGU2012-2734

JO - Geophysical Research Abstracts

JF - Geophysical Research Abstracts

T2 - European Geosciences Union General Assembly 2012

Y2 - 22 April 2012 through 27 April 2012

ER -

Acceleration of the GrIS mass loss as observed by GRACE

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