Multidecadal observations of the Antarctic ice sheet from restored analog radar records. ...
Airborne radar sounding can measure conditions within and beneath polar ice sheets. In Antarctica, most digital radar-sounding data have been collected in the last 2 decades, limiting our ability to understand processes that govern longer-term ice-sheet behavior. Here, we demonstrate how analog rada...
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ftdatacite:10.17863/cam.43762 2024-02-27T08:33:34+00:00 Multidecadal observations of the Antarctic ice sheet from restored analog radar records. ... Schroeder, Dustin M Dowdeswell, Julian A Siegert, Martin J Bingham, Robert G Chu, Winnie MacKie, Emma J Siegfried, Matthew R Vega, Katherine I Emmons, John R Winstein, Keith 2019 https://dx.doi.org/10.17863/cam.43762 https://www.repository.cam.ac.uk/handle/1810/296719 en eng Proceedings of the National Academy of Sciences open.access Creative Commons Attribution Non Commercial No Derivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode cc-by-nc-nd-4.0 http://purl.org/coar/access_right/c_abf2 Antarctica archival data glaciology radio echo sounding remote sensing article-journal ScholarlyArticle JournalArticle Article 2019 ftdatacite https://doi.org/10.17863/cam.43762 2024-02-01T14:59:23Z Airborne radar sounding can measure conditions within and beneath polar ice sheets. In Antarctica, most digital radar-sounding data have been collected in the last 2 decades, limiting our ability to understand processes that govern longer-term ice-sheet behavior. Here, we demonstrate how analog radar data collected over 40 y ago in Antarctica can be combined with modern records to quantify multidecadal changes. Specifically, we digitize over 400,000 line kilometers of exploratory Antarctic radar data originally recorded on 35-mm optical film between 1971 and 1979. We leverage the increased geometric and radiometric resolution of our digitization process to show how these data can be used to identify and investigate hydrologic, geologic, and topographic features beneath and within the ice sheet. To highlight their scientific potential, we compare the digitized data with contemporary radar measurements to reveal that the remnant eastern ice shelf of Thwaites Glacier in West Antarctica had thinned between 10 ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Thwaites Glacier West Antarctica DataCite Metadata Store (German National Library of Science and Technology) Antarctic The Antarctic Thwaites Glacier ENVELOPE(-106.750,-106.750,-75.500,-75.500) West Antarctica |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Antarctica archival data glaciology radio echo sounding remote sensing |
spellingShingle |
Antarctica archival data glaciology radio echo sounding remote sensing Schroeder, Dustin M Dowdeswell, Julian A Siegert, Martin J Bingham, Robert G Chu, Winnie MacKie, Emma J Siegfried, Matthew R Vega, Katherine I Emmons, John R Winstein, Keith Multidecadal observations of the Antarctic ice sheet from restored analog radar records. ... |
topic_facet |
Antarctica archival data glaciology radio echo sounding remote sensing |
description |
Airborne radar sounding can measure conditions within and beneath polar ice sheets. In Antarctica, most digital radar-sounding data have been collected in the last 2 decades, limiting our ability to understand processes that govern longer-term ice-sheet behavior. Here, we demonstrate how analog radar data collected over 40 y ago in Antarctica can be combined with modern records to quantify multidecadal changes. Specifically, we digitize over 400,000 line kilometers of exploratory Antarctic radar data originally recorded on 35-mm optical film between 1971 and 1979. We leverage the increased geometric and radiometric resolution of our digitization process to show how these data can be used to identify and investigate hydrologic, geologic, and topographic features beneath and within the ice sheet. To highlight their scientific potential, we compare the digitized data with contemporary radar measurements to reveal that the remnant eastern ice shelf of Thwaites Glacier in West Antarctica had thinned between 10 ... |
format |
Article in Journal/Newspaper |
author |
Schroeder, Dustin M Dowdeswell, Julian A Siegert, Martin J Bingham, Robert G Chu, Winnie MacKie, Emma J Siegfried, Matthew R Vega, Katherine I Emmons, John R Winstein, Keith |
author_facet |
Schroeder, Dustin M Dowdeswell, Julian A Siegert, Martin J Bingham, Robert G Chu, Winnie MacKie, Emma J Siegfried, Matthew R Vega, Katherine I Emmons, John R Winstein, Keith |
author_sort |
Schroeder, Dustin M |
title |
Multidecadal observations of the Antarctic ice sheet from restored analog radar records. ... |
title_short |
Multidecadal observations of the Antarctic ice sheet from restored analog radar records. ... |
title_full |
Multidecadal observations of the Antarctic ice sheet from restored analog radar records. ... |
title_fullStr |
Multidecadal observations of the Antarctic ice sheet from restored analog radar records. ... |
title_full_unstemmed |
Multidecadal observations of the Antarctic ice sheet from restored analog radar records. ... |
title_sort |
multidecadal observations of the antarctic ice sheet from restored analog radar records. ... |
publisher |
Proceedings of the National Academy of Sciences |
publishDate |
2019 |
url |
https://dx.doi.org/10.17863/cam.43762 https://www.repository.cam.ac.uk/handle/1810/296719 |
long_lat |
ENVELOPE(-106.750,-106.750,-75.500,-75.500) |
geographic |
Antarctic The Antarctic Thwaites Glacier West Antarctica |
geographic_facet |
Antarctic The Antarctic Thwaites Glacier West Antarctica |
genre |
Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Thwaites Glacier West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Thwaites Glacier West Antarctica |
op_rights |
open.access Creative Commons Attribution Non Commercial No Derivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode cc-by-nc-nd-4.0 http://purl.org/coar/access_right/c_abf2 |
op_doi |
https://doi.org/10.17863/cam.43762 |
_version_ |
1792046339639476224 |