Using Satellite Laser Ranging to Measure Ice Mass Change in Greenland and Antarctica
A least squares inversion of satellite laser ranging (SLR) data over Greenland and Antarctica could extend gravimetry-based estimates of mass loss back to the early 1990s and fill any future gap between the current Gravity Recovery and Climate Experiment (GRACE) and the future GRACE Follow-On missio...
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ftusouthflorida:oai:digitalcommons.usf.edu:msc_facpub-2287 2023-07-30T03:58:12+02:00 Using Satellite Laser Ranging to Measure Ice Mass Change in Greenland and Antarctica Bonin, Jennifer A. Chambers, Don P Cheng, Minkang 2018-01-01T08:00:00Z application/pdf https://digitalcommons.usf.edu/msc_facpub/1285 https://doi.org/10.5194/tc-12-71-2018 https://digitalcommons.usf.edu/context/msc_facpub/article/2287/viewcontent/tc_12_71_2018.pdf unknown Digital Commons @ University of South Florida https://digitalcommons.usf.edu/msc_facpub/1285 doi:10.5194/tc-12-71-2018 https://digitalcommons.usf.edu/context/msc_facpub/article/2287/viewcontent/tc_12_71_2018.pdf http://creativecommons.org/licenses/by-sa/4.0/ Marine Science Faculty Publications Life Sciences article 2018 ftusouthflorida https://doi.org/10.5194/tc-12-71-2018 2023-07-13T21:02:47Z A least squares inversion of satellite laser ranging (SLR) data over Greenland and Antarctica could extend gravimetry-based estimates of mass loss back to the early 1990s and fill any future gap between the current Gravity Recovery and Climate Experiment (GRACE) and the future GRACE Follow-On mission. The results of a simulation suggest that, while separating the mass change between Greenland and Antarctica is not possible at the limited spatial resolution of the SLR data, estimating the total combined mass change of the two areas is feasible. When the method is applied to real SLR and GRACE gravity series, we find significantly different estimates of inverted mass loss. There are large, unpredictable, interannual differences between the two inverted data types, making us conclude that the current 5×5 spherical harmonic SLR series cannot be used to stand in for GRACE. However, a comparison with the longer IMBIE time series suggests that on a 20-year time frame, the inverted SLR series' interannual excursions may average out, and the long-term mass loss estimate may be reasonable. Article in Journal/Newspaper Antarc* Antarctica Greenland University of South Florida St. Petersburg: Digital USFSP Greenland The Cryosphere 12 1 71 79 |
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Open Polar |
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University of South Florida St. Petersburg: Digital USFSP |
op_collection_id |
ftusouthflorida |
language |
unknown |
topic |
Life Sciences |
spellingShingle |
Life Sciences Bonin, Jennifer A. Chambers, Don P Cheng, Minkang Using Satellite Laser Ranging to Measure Ice Mass Change in Greenland and Antarctica |
topic_facet |
Life Sciences |
description |
A least squares inversion of satellite laser ranging (SLR) data over Greenland and Antarctica could extend gravimetry-based estimates of mass loss back to the early 1990s and fill any future gap between the current Gravity Recovery and Climate Experiment (GRACE) and the future GRACE Follow-On mission. The results of a simulation suggest that, while separating the mass change between Greenland and Antarctica is not possible at the limited spatial resolution of the SLR data, estimating the total combined mass change of the two areas is feasible. When the method is applied to real SLR and GRACE gravity series, we find significantly different estimates of inverted mass loss. There are large, unpredictable, interannual differences between the two inverted data types, making us conclude that the current 5×5 spherical harmonic SLR series cannot be used to stand in for GRACE. However, a comparison with the longer IMBIE time series suggests that on a 20-year time frame, the inverted SLR series' interannual excursions may average out, and the long-term mass loss estimate may be reasonable. |
format |
Article in Journal/Newspaper |
author |
Bonin, Jennifer A. Chambers, Don P Cheng, Minkang |
author_facet |
Bonin, Jennifer A. Chambers, Don P Cheng, Minkang |
author_sort |
Bonin, Jennifer A. |
title |
Using Satellite Laser Ranging to Measure Ice Mass Change in Greenland and Antarctica |
title_short |
Using Satellite Laser Ranging to Measure Ice Mass Change in Greenland and Antarctica |
title_full |
Using Satellite Laser Ranging to Measure Ice Mass Change in Greenland and Antarctica |
title_fullStr |
Using Satellite Laser Ranging to Measure Ice Mass Change in Greenland and Antarctica |
title_full_unstemmed |
Using Satellite Laser Ranging to Measure Ice Mass Change in Greenland and Antarctica |
title_sort |
using satellite laser ranging to measure ice mass change in greenland and antarctica |
publisher |
Digital Commons @ University of South Florida |
publishDate |
2018 |
url |
https://digitalcommons.usf.edu/msc_facpub/1285 https://doi.org/10.5194/tc-12-71-2018 https://digitalcommons.usf.edu/context/msc_facpub/article/2287/viewcontent/tc_12_71_2018.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Antarc* Antarctica Greenland |
genre_facet |
Antarc* Antarctica Greenland |
op_source |
Marine Science Faculty Publications |
op_relation |
https://digitalcommons.usf.edu/msc_facpub/1285 doi:10.5194/tc-12-71-2018 https://digitalcommons.usf.edu/context/msc_facpub/article/2287/viewcontent/tc_12_71_2018.pdf |
op_rights |
http://creativecommons.org/licenses/by-sa/4.0/ |
op_doi |
https://doi.org/10.5194/tc-12-71-2018 |
container_title |
The Cryosphere |
container_volume |
12 |
container_issue |
1 |
container_start_page |
71 |
op_container_end_page |
79 |
_version_ |
1772821069623721984 |