Water storage changes in North America retrieved from GRACE gravity and GPS data
As global warming continues, the monitoring of changes in terrestrial water storage becomes increasingly important since it plays a critical role in understanding global change and water resource management. In North America as elsewhere in the world, changes in water resources strongly impact agric...
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ftdoajarticles:oai:doaj.org/article:9bef70a9c10148acb194cbf3d19386f7 2023-05-15T17:58:05+02:00 Water storage changes in North America retrieved from GRACE gravity and GPS data Hansheng Wang Longwei Xiang Lulu Jia Patrick Wu Holger Steffen Liming Jiang Qiang Shen 2015-07-01T00:00:00Z https://doi.org/10.1016/j.geog.2015.07.002 https://doaj.org/article/9bef70a9c10148acb194cbf3d19386f7 EN eng KeAi Communications Co., Ltd. http://www.sciencedirect.com/science/article/pii/S1674984715000658 https://doaj.org/toc/1674-9847 1674-9847 doi:10.1016/j.geog.2015.07.002 https://doaj.org/article/9bef70a9c10148acb194cbf3d19386f7 Geodesy and Geodynamics, Vol 6, Iss 4, Pp 267-273 (2015) Geodesy QB275-343 Geophysics. Cosmic physics QC801-809 article 2015 ftdoajarticles https://doi.org/10.1016/j.geog.2015.07.002 2022-12-31T15:29:20Z As global warming continues, the monitoring of changes in terrestrial water storage becomes increasingly important since it plays a critical role in understanding global change and water resource management. In North America as elsewhere in the world, changes in water resources strongly impact agriculture and animal husbandry. From a combination of Gravity Recovery and Climate Experiment (GRACE) gravity and Global Positioning System (GPS) data, it is recently found that water storage from August, 2002 to March, 2011 recovered after the extreme Canadian Prairies drought between 1999 and 2005. In this paper, we use GRACE monthly gravity data of Release 5 to track the water storage change from August, 2002 to June, 2014. In Canadian Prairies and the Great Lakes areas, the total water storage is found to have increased during the last decade by a rate of 73.8 ± 14.5 Gt/a, which is larger than that found in the previous study due to the longer time span of GRACE observations used and the reduction of the leakage error. We also find a long term decrease of water storage at a rate of −12.0 ± 4.2 Gt/a in Ungava Peninsula, possibly due to permafrost degradation and less snow accumulation during the winter in the region. In addition, the effect of total mass gain in the surveyed area, on present-day sea level, amounts to −0.18 mm/a, and thus should be taken into account in studies of global sea level change. Keywords: Canadian Prairies, Great Lakes, Ungava Peninsula, Water storage changes, Gravity Recovery and Climate Experiment (GRACE) data, Global Positioning System (GPS) data, Glacial isostatic adjustment, Separation approach Article in Journal/Newspaper permafrost Ungava peninsula Directory of Open Access Journals: DOAJ Articles Ungava Peninsula ENVELOPE(-73.999,-73.999,60.000,60.000) Geodesy and Geodynamics 6 4 267 273 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geodesy QB275-343 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Geodesy QB275-343 Geophysics. Cosmic physics QC801-809 Hansheng Wang Longwei Xiang Lulu Jia Patrick Wu Holger Steffen Liming Jiang Qiang Shen Water storage changes in North America retrieved from GRACE gravity and GPS data |
topic_facet |
Geodesy QB275-343 Geophysics. Cosmic physics QC801-809 |
description |
As global warming continues, the monitoring of changes in terrestrial water storage becomes increasingly important since it plays a critical role in understanding global change and water resource management. In North America as elsewhere in the world, changes in water resources strongly impact agriculture and animal husbandry. From a combination of Gravity Recovery and Climate Experiment (GRACE) gravity and Global Positioning System (GPS) data, it is recently found that water storage from August, 2002 to March, 2011 recovered after the extreme Canadian Prairies drought between 1999 and 2005. In this paper, we use GRACE monthly gravity data of Release 5 to track the water storage change from August, 2002 to June, 2014. In Canadian Prairies and the Great Lakes areas, the total water storage is found to have increased during the last decade by a rate of 73.8 ± 14.5 Gt/a, which is larger than that found in the previous study due to the longer time span of GRACE observations used and the reduction of the leakage error. We also find a long term decrease of water storage at a rate of −12.0 ± 4.2 Gt/a in Ungava Peninsula, possibly due to permafrost degradation and less snow accumulation during the winter in the region. In addition, the effect of total mass gain in the surveyed area, on present-day sea level, amounts to −0.18 mm/a, and thus should be taken into account in studies of global sea level change. Keywords: Canadian Prairies, Great Lakes, Ungava Peninsula, Water storage changes, Gravity Recovery and Climate Experiment (GRACE) data, Global Positioning System (GPS) data, Glacial isostatic adjustment, Separation approach |
format |
Article in Journal/Newspaper |
author |
Hansheng Wang Longwei Xiang Lulu Jia Patrick Wu Holger Steffen Liming Jiang Qiang Shen |
author_facet |
Hansheng Wang Longwei Xiang Lulu Jia Patrick Wu Holger Steffen Liming Jiang Qiang Shen |
author_sort |
Hansheng Wang |
title |
Water storage changes in North America retrieved from GRACE gravity and GPS data |
title_short |
Water storage changes in North America retrieved from GRACE gravity and GPS data |
title_full |
Water storage changes in North America retrieved from GRACE gravity and GPS data |
title_fullStr |
Water storage changes in North America retrieved from GRACE gravity and GPS data |
title_full_unstemmed |
Water storage changes in North America retrieved from GRACE gravity and GPS data |
title_sort |
water storage changes in north america retrieved from grace gravity and gps data |
publisher |
KeAi Communications Co., Ltd. |
publishDate |
2015 |
url |
https://doi.org/10.1016/j.geog.2015.07.002 https://doaj.org/article/9bef70a9c10148acb194cbf3d19386f7 |
long_lat |
ENVELOPE(-73.999,-73.999,60.000,60.000) |
geographic |
Ungava Peninsula |
geographic_facet |
Ungava Peninsula |
genre |
permafrost Ungava peninsula |
genre_facet |
permafrost Ungava peninsula |
op_source |
Geodesy and Geodynamics, Vol 6, Iss 4, Pp 267-273 (2015) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S1674984715000658 https://doaj.org/toc/1674-9847 1674-9847 doi:10.1016/j.geog.2015.07.002 https://doaj.org/article/9bef70a9c10148acb194cbf3d19386f7 |
op_doi |
https://doi.org/10.1016/j.geog.2015.07.002 |
container_title |
Geodesy and Geodynamics |
container_volume |
6 |
container_issue |
4 |
container_start_page |
267 |
op_container_end_page |
273 |
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1766166627391373312 |