Short term mass variability in Greenland, from GRACE
We use twenty-two monthly GRACE (Gravity Recovery and Climate Experiment) gravity fields to recover nonsecular mass change in Greenland. The results show large seasonal variability. We compare with modeled precipitation, evaporation, and runoff derived from ERA40 (the 40-year ECMWF Re-Analysis of th...
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American Geophysical Union
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ftulincoln:oai:eprints.lincoln.ac.uk:26061 2023-05-15T16:26:13+02:00 Short term mass variability in Greenland, from GRACE Velicogna, I. Wahr, J. Hanna, E. Huybrechts, P. 2005-03-01 application/pdf https://eprints.lincoln.ac.uk/id/eprint/26061/ https://eprints.lincoln.ac.uk/id/eprint/26061/1/26061%20Velicogna_et_al-2005-Geophysical_Research_Letters.pdf https://doi.org/10.1029/2004GL021948 en eng American Geophysical Union https://eprints.lincoln.ac.uk/id/eprint/26061/1/26061%20Velicogna_et_al-2005-Geophysical_Research_Letters.pdf Velicogna, I., Wahr, J., Hanna, E. and Huybrechts, P. (2005) Short term mass variability in Greenland, from GRACE. Geophysical Research Letters, 32 (5). pp. 1-4. ISSN 0094-8276 doi:10.1029/2004GL021948 F890 Geographical and Environmental Sciences not elsewhere classified Article PeerReviewed 2005 ftulincoln https://doi.org/10.1029/2004GL021948 2022-03-02T20:07:06Z We use twenty-two monthly GRACE (Gravity Recovery and Climate Experiment) gravity fields to recover nonsecular mass change in Greenland. The results show large seasonal variability. We compare with modeled precipitation, evaporation, and runoff derived from ERA40 (the 40-year ECMWF Re-Analysis of the global atmosphere). The model's seasonal amplitude is controlled by runoff and agrees reasonably well with GRACE. Both GRACE and the model show an April/May maximum. But the GRACE results show a delayed minimum relative to the model. This difference is probably associated with omissions in the runoff model, ice discharge, subglacial hydrology, mass loss by blowing-snow, and hydrology in ice-free regions. The discrepancy is smaller, but still significant, for south Greenland alone. When we include a proxy for ice discharge the agreement is improved. Copyright 2005 by the American Geophysical Union. Article in Journal/Newspaper Greenland University of Lincoln: Lincoln Repository Greenland Geophysical Research Letters 32 5 |
institution |
Open Polar |
collection |
University of Lincoln: Lincoln Repository |
op_collection_id |
ftulincoln |
language |
English |
topic |
F890 Geographical and Environmental Sciences not elsewhere classified |
spellingShingle |
F890 Geographical and Environmental Sciences not elsewhere classified Velicogna, I. Wahr, J. Hanna, E. Huybrechts, P. Short term mass variability in Greenland, from GRACE |
topic_facet |
F890 Geographical and Environmental Sciences not elsewhere classified |
description |
We use twenty-two monthly GRACE (Gravity Recovery and Climate Experiment) gravity fields to recover nonsecular mass change in Greenland. The results show large seasonal variability. We compare with modeled precipitation, evaporation, and runoff derived from ERA40 (the 40-year ECMWF Re-Analysis of the global atmosphere). The model's seasonal amplitude is controlled by runoff and agrees reasonably well with GRACE. Both GRACE and the model show an April/May maximum. But the GRACE results show a delayed minimum relative to the model. This difference is probably associated with omissions in the runoff model, ice discharge, subglacial hydrology, mass loss by blowing-snow, and hydrology in ice-free regions. The discrepancy is smaller, but still significant, for south Greenland alone. When we include a proxy for ice discharge the agreement is improved. Copyright 2005 by the American Geophysical Union. |
format |
Article in Journal/Newspaper |
author |
Velicogna, I. Wahr, J. Hanna, E. Huybrechts, P. |
author_facet |
Velicogna, I. Wahr, J. Hanna, E. Huybrechts, P. |
author_sort |
Velicogna, I. |
title |
Short term mass variability in Greenland, from GRACE |
title_short |
Short term mass variability in Greenland, from GRACE |
title_full |
Short term mass variability in Greenland, from GRACE |
title_fullStr |
Short term mass variability in Greenland, from GRACE |
title_full_unstemmed |
Short term mass variability in Greenland, from GRACE |
title_sort |
short term mass variability in greenland, from grace |
publisher |
American Geophysical Union |
publishDate |
2005 |
url |
https://eprints.lincoln.ac.uk/id/eprint/26061/ https://eprints.lincoln.ac.uk/id/eprint/26061/1/26061%20Velicogna_et_al-2005-Geophysical_Research_Letters.pdf https://doi.org/10.1029/2004GL021948 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_relation |
https://eprints.lincoln.ac.uk/id/eprint/26061/1/26061%20Velicogna_et_al-2005-Geophysical_Research_Letters.pdf Velicogna, I., Wahr, J., Hanna, E. and Huybrechts, P. (2005) Short term mass variability in Greenland, from GRACE. Geophysical Research Letters, 32 (5). pp. 1-4. ISSN 0094-8276 doi:10.1029/2004GL021948 |
op_doi |
https://doi.org/10.1029/2004GL021948 |
container_title |
Geophysical Research Letters |
container_volume |
32 |
container_issue |
5 |
_version_ |
1766015110122307584 |