Regional acceleration in ice mass loss from Greenland and Antarctica using GRACE time-variable gravity data
We use Gravity Recovery and Climate Experiment (GRACE) monthly gravity fields to determine the regional acceleration in ice mass loss in Greenland and Antarctica for 2003-2013. We find that the total mass loss is controlled by only a few regions. In Greenland, the southeast and northwest generate 70...
Main Authors: | , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
eScholarship, University of California
2014
|
Subjects: | |
Online Access: | https://escholarship.org/uc/item/3794v25j |
id |
ftcdlib:oai:escholarship.org/ark:/13030/qt3794v25j |
---|---|
record_format |
openpolar |
spelling |
ftcdlib:oai:escholarship.org/ark:/13030/qt3794v25j 2023-05-15T13:24:04+02:00 Regional acceleration in ice mass loss from Greenland and Antarctica using GRACE time-variable gravity data Velicogna, I Sutterley, TC Van Den Broeke, MR 8130 - 8137 2014-11-28 application/pdf https://escholarship.org/uc/item/3794v25j unknown eScholarship, University of California qt3794v25j https://escholarship.org/uc/item/3794v25j CC-BY CC-BY Geophysical Research Letters, vol 41, iss 22 mass balance time-variable gravity Greenland sea level Antarctica remote sensing Meteorology & Atmospheric Sciences article 2014 ftcdlib 2021-04-16T07:10:50Z We use Gravity Recovery and Climate Experiment (GRACE) monthly gravity fields to determine the regional acceleration in ice mass loss in Greenland and Antarctica for 2003-2013. We find that the total mass loss is controlled by only a few regions. In Greenland, the southeast and northwest generate 70% of the loss (280±58 Gt/yr) mostly from ice dynamics, the southwest accounts for 54% of the total acceleration in loss (25.4±1.2 Gt/yr2) from a decrease in surface mass balance (SMB), followed by the northwest (34%), and we find no significant acceleration in the northeast. In Antarctica, the Amundsen Sea (AS) sector and the Antarctic Peninsula account for 64% and 17%, respectively, of the total loss (180±10 Gt/yr) mainly from ice dynamics. The AS sector contributes most of the acceleration in loss (11±4 Gt/yr2), and Queen Maud Land, East Antarctica, is the only sector with a significant mass gain due to a local increase in SMB (63±5 Gt/yr). Article in Journal/Newspaper Amundsen Sea Antarc* Antarctic Antarctic Peninsula Antarctica East Antarctica Greenland Greenland Sea Queen Maud Land University of California: eScholarship Amundsen Sea Antarctic Antarctic Peninsula East Antarctica Greenland Queen Maud Land ENVELOPE(12.000,12.000,-72.500,-72.500) The Antarctic |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
mass balance time-variable gravity Greenland sea level Antarctica remote sensing Meteorology & Atmospheric Sciences |
spellingShingle |
mass balance time-variable gravity Greenland sea level Antarctica remote sensing Meteorology & Atmospheric Sciences Velicogna, I Sutterley, TC Van Den Broeke, MR Regional acceleration in ice mass loss from Greenland and Antarctica using GRACE time-variable gravity data |
topic_facet |
mass balance time-variable gravity Greenland sea level Antarctica remote sensing Meteorology & Atmospheric Sciences |
description |
We use Gravity Recovery and Climate Experiment (GRACE) monthly gravity fields to determine the regional acceleration in ice mass loss in Greenland and Antarctica for 2003-2013. We find that the total mass loss is controlled by only a few regions. In Greenland, the southeast and northwest generate 70% of the loss (280±58 Gt/yr) mostly from ice dynamics, the southwest accounts for 54% of the total acceleration in loss (25.4±1.2 Gt/yr2) from a decrease in surface mass balance (SMB), followed by the northwest (34%), and we find no significant acceleration in the northeast. In Antarctica, the Amundsen Sea (AS) sector and the Antarctic Peninsula account for 64% and 17%, respectively, of the total loss (180±10 Gt/yr) mainly from ice dynamics. The AS sector contributes most of the acceleration in loss (11±4 Gt/yr2), and Queen Maud Land, East Antarctica, is the only sector with a significant mass gain due to a local increase in SMB (63±5 Gt/yr). |
format |
Article in Journal/Newspaper |
author |
Velicogna, I Sutterley, TC Van Den Broeke, MR |
author_facet |
Velicogna, I Sutterley, TC Van Den Broeke, MR |
author_sort |
Velicogna, I |
title |
Regional acceleration in ice mass loss from Greenland and Antarctica using GRACE time-variable gravity data |
title_short |
Regional acceleration in ice mass loss from Greenland and Antarctica using GRACE time-variable gravity data |
title_full |
Regional acceleration in ice mass loss from Greenland and Antarctica using GRACE time-variable gravity data |
title_fullStr |
Regional acceleration in ice mass loss from Greenland and Antarctica using GRACE time-variable gravity data |
title_full_unstemmed |
Regional acceleration in ice mass loss from Greenland and Antarctica using GRACE time-variable gravity data |
title_sort |
regional acceleration in ice mass loss from greenland and antarctica using grace time-variable gravity data |
publisher |
eScholarship, University of California |
publishDate |
2014 |
url |
https://escholarship.org/uc/item/3794v25j |
op_coverage |
8130 - 8137 |
long_lat |
ENVELOPE(12.000,12.000,-72.500,-72.500) |
geographic |
Amundsen Sea Antarctic Antarctic Peninsula East Antarctica Greenland Queen Maud Land The Antarctic |
geographic_facet |
Amundsen Sea Antarctic Antarctic Peninsula East Antarctica Greenland Queen Maud Land The Antarctic |
genre |
Amundsen Sea Antarc* Antarctic Antarctic Peninsula Antarctica East Antarctica Greenland Greenland Sea Queen Maud Land |
genre_facet |
Amundsen Sea Antarc* Antarctic Antarctic Peninsula Antarctica East Antarctica Greenland Greenland Sea Queen Maud Land |
op_source |
Geophysical Research Letters, vol 41, iss 22 |
op_relation |
qt3794v25j https://escholarship.org/uc/item/3794v25j |
op_rights |
CC-BY |
op_rightsnorm |
CC-BY |
_version_ |
1766377227746803712 |