Ice mass variation in Greenland and Antarctica from GRACE

The GRACE satellite mission, launched in March of 2002, provides monthly measurementsof time variable gravity at scales of a few hundred kilometers and larger. Thesedata can be used to estimate temporal variations in the distribution of surface mass.Weexamine here the 22 monthly GRACE gravity field...

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Bibliographic Details
Main Authors: Velicogna, I., Wahr, J., Hanna, E., Huybrechts, Philippe
Format: Conference Object
Language:unknown
Published: 2005
Subjects:
Antarctic
Greenland
Antarc*
Antarctica
Online Access:https://epic.awi.de/id/eprint/12249/
https://hdl.handle.net/10013/epic.22683
id ftawi:oai:epic.awi.de:12249
record_format openpolar
spelling ftawi:oai:epic.awi.de:12249 2023-09-05T13:13:50+02:00 Ice mass variation in Greenland and Antarctica from GRACE Velicogna, I. Wahr, J. Hanna, E. Huybrechts, Philippe 2005 https://epic.awi.de/id/eprint/12249/ https://hdl.handle.net/10013/epic.22683 unknown Velicogna, I. , Wahr, J. , Hanna, E. and Huybrechts, P. (2005) Ice mass variation in Greenland and Antarctica from GRACE , European Geosciences Union Second General Assembly, Wien (Austria), 25-29 April 2005, Geophysical Research Abstracts, vol. 7CD-ROM). . hdl:10013/epic.22683 EPIC3European Geosciences Union Second General Assembly, Wien (Austria), 25-29 April 2005, Geophysical Research Abstracts, vol. 7CD-ROM)., 10017 Conference notRev 2005 ftawi 2023-08-22T19:49:48Z The GRACE satellite mission, launched in March of 2002, provides monthly measurementsof time variable gravity at scales of a few hundred kilometers and larger. Thesedata can be used to estimate temporal variations in the distribution of surface mass.Weexamine here the 22 monthly GRACE gravity field solutions that are currently availablefor analyses. We find that these fields can be used to recover mass imbalance andnet snow accumulation for the Greenland and Antarctic ice sheets. GRACE estimatesof Greenland mass change agree with ice mass imbalance estimates from altimeterheights within measurement errors. We also estimate net snow accumulation from thenonsecular component of the GRACE signal.We compared nonsecular variation fromGRACE with ERA40-derived estimates and we interpreted the differences. Conference Object Antarc* Antarctic Antarctica Greenland Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Antarctic Greenland
institution Open Polar
collection Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
op_collection_id ftawi
language unknown
description The GRACE satellite mission, launched in March of 2002, provides monthly measurementsof time variable gravity at scales of a few hundred kilometers and larger. Thesedata can be used to estimate temporal variations in the distribution of surface mass.Weexamine here the 22 monthly GRACE gravity field solutions that are currently availablefor analyses. We find that these fields can be used to recover mass imbalance andnet snow accumulation for the Greenland and Antarctic ice sheets. GRACE estimatesof Greenland mass change agree with ice mass imbalance estimates from altimeterheights within measurement errors. We also estimate net snow accumulation from thenonsecular component of the GRACE signal.We compared nonsecular variation fromGRACE with ERA40-derived estimates and we interpreted the differences.
format Conference Object
author Velicogna, I.
Wahr, J.
Hanna, E.
Huybrechts, Philippe
spellingShingle Velicogna, I.
Wahr, J.
Hanna, E.
Huybrechts, Philippe
Ice mass variation in Greenland and Antarctica from GRACE
author_facet Velicogna, I.
Wahr, J.
Hanna, E.
Huybrechts, Philippe
author_sort Velicogna, I.
title Ice mass variation in Greenland and Antarctica from GRACE
title_short Ice mass variation in Greenland and Antarctica from GRACE
title_full Ice mass variation in Greenland and Antarctica from GRACE
title_fullStr Ice mass variation in Greenland and Antarctica from GRACE
title_full_unstemmed Ice mass variation in Greenland and Antarctica from GRACE
title_sort ice mass variation in greenland and antarctica from grace
publishDate 2005
url https://epic.awi.de/id/eprint/12249/
https://hdl.handle.net/10013/epic.22683
geographic Antarctic
Greenland
geographic_facet Antarctic
Greenland
genre Antarc*
Antarctic
Antarctica
Greenland
genre_facet Antarc*
Antarctic
Antarctica
Greenland
op_source EPIC3European Geosciences Union Second General Assembly, Wien (Austria), 25-29 April 2005, Geophysical Research Abstracts, vol. 7CD-ROM)., 10017
op_relation Velicogna, I. , Wahr, J. , Hanna, E. and Huybrechts, P. (2005) Ice mass variation in Greenland and Antarctica from GRACE , European Geosciences Union Second General Assembly, Wien (Austria), 25-29 April 2005, Geophysical Research Abstracts, vol. 7CD-ROM). . hdl:10013/epic.22683
_version_ 1776204982748446720

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