Ice-shelf elevation changes due to atmospheric pressure variations
The inverse barometer effect (IBE) is the isostatic response of ocean surface height to changes in atmospheric pressure (Pair) at a rate of about 1 cm hPa-1. The IBE is a significant contributor to variability of ice-shelf surface elevation (ice), as we demonstrate with simultaneous global positioni...
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Online Access: | https://doi.org/10.3189/172756503781830386 http://ecite.utas.edu.au/34079 |
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ftunivtasecite:oai:ecite.utas.edu.au:34079 2023-05-15T14:03:54+02:00 Ice-shelf elevation changes due to atmospheric pressure variations Padman, L King, MA Goring, D Corr, H Coleman, R 2004 https://doi.org/10.3189/172756503781830386 http://ecite.utas.edu.au/34079 en eng International Glaciology Society http://dx.doi.org/10.3189/172756503781830386 Padman, L and King, MA and Goring, D and Corr, H and Coleman, R, Ice-shelf elevation changes due to atmospheric pressure variations, Journal of Glaciology, 49, (167) pp. 521-526. ISSN 0022-1430 (2004) [Refereed Article] http://ecite.utas.edu.au/34079 Earth Sciences Physical Geography and Environmental Geoscience Glaciology Refereed Article PeerReviewed 2004 ftunivtasecite https://doi.org/10.3189/172756503781830386 2019-12-13T21:12:58Z The inverse barometer effect (IBE) is the isostatic response of ocean surface height to changes in atmospheric pressure (Pair) at a rate of about 1 cm hPa-1. The IBE is a significant contributor to variability of ice-shelf surface elevation (ice), as we demonstrate with simultaneous global positioning system measurements of ice and local measurements of Pair from the Amery, Brunt and Ross Ice Shelves, Antarctica. We find that an IBE correction is justified for frequencies () covering the "weather band", 0.03 < < 0.5 cpd (cycles per day). The IBE correction reduces the standard deviation of the weather-band signal of ice from 9 cm to 3 cm. With this correction, the largest remaining high-frequency error signal in ice is the inaccuracy of the present generation of Antarctic tide models, estimated to be of order 10 cm for most of Antarctica. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Shelf Ice Shelves Journal of Glaciology eCite UTAS (University of Tasmania) Amery ENVELOPE(-94.063,-94.063,56.565,56.565) Antarctic Journal of Glaciology 49 167 521 526 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Physical Geography and Environmental Geoscience Glaciology |
spellingShingle |
Earth Sciences Physical Geography and Environmental Geoscience Glaciology Padman, L King, MA Goring, D Corr, H Coleman, R Ice-shelf elevation changes due to atmospheric pressure variations |
topic_facet |
Earth Sciences Physical Geography and Environmental Geoscience Glaciology |
description |
The inverse barometer effect (IBE) is the isostatic response of ocean surface height to changes in atmospheric pressure (Pair) at a rate of about 1 cm hPa-1. The IBE is a significant contributor to variability of ice-shelf surface elevation (ice), as we demonstrate with simultaneous global positioning system measurements of ice and local measurements of Pair from the Amery, Brunt and Ross Ice Shelves, Antarctica. We find that an IBE correction is justified for frequencies () covering the "weather band", 0.03 < < 0.5 cpd (cycles per day). The IBE correction reduces the standard deviation of the weather-band signal of ice from 9 cm to 3 cm. With this correction, the largest remaining high-frequency error signal in ice is the inaccuracy of the present generation of Antarctic tide models, estimated to be of order 10 cm for most of Antarctica. |
format |
Article in Journal/Newspaper |
author |
Padman, L King, MA Goring, D Corr, H Coleman, R |
author_facet |
Padman, L King, MA Goring, D Corr, H Coleman, R |
author_sort |
Padman, L |
title |
Ice-shelf elevation changes due to atmospheric pressure variations |
title_short |
Ice-shelf elevation changes due to atmospheric pressure variations |
title_full |
Ice-shelf elevation changes due to atmospheric pressure variations |
title_fullStr |
Ice-shelf elevation changes due to atmospheric pressure variations |
title_full_unstemmed |
Ice-shelf elevation changes due to atmospheric pressure variations |
title_sort |
ice-shelf elevation changes due to atmospheric pressure variations |
publisher |
International Glaciology Society |
publishDate |
2004 |
url |
https://doi.org/10.3189/172756503781830386 http://ecite.utas.edu.au/34079 |
long_lat |
ENVELOPE(-94.063,-94.063,56.565,56.565) |
geographic |
Amery Antarctic |
geographic_facet |
Amery Antarctic |
genre |
Antarc* Antarctic Antarctica Ice Shelf Ice Shelves Journal of Glaciology |
genre_facet |
Antarc* Antarctic Antarctica Ice Shelf Ice Shelves Journal of Glaciology |
op_relation |
http://dx.doi.org/10.3189/172756503781830386 Padman, L and King, MA and Goring, D and Corr, H and Coleman, R, Ice-shelf elevation changes due to atmospheric pressure variations, Journal of Glaciology, 49, (167) pp. 521-526. ISSN 0022-1430 (2004) [Refereed Article] http://ecite.utas.edu.au/34079 |
op_doi |
https://doi.org/10.3189/172756503781830386 |
container_title |
Journal of Glaciology |
container_volume |
49 |
container_issue |
167 |
container_start_page |
521 |
op_container_end_page |
526 |
_version_ |
1766274786511552512 |