Retrieval of Snow Depth on Arctic Sea Ice From Surface-Based, Polarimetric, Dual-Frequency Radar Altimetry
Snow depth on sea ice is an Essential Climate Variable and a major source of uncertainty in satellite altimetry-derived sea ice thickness. During winter of the MOSAiC Expedition, the “KuKa” dual-frequency, fully polarized Ku- and Ka-band radar was deployed in “stare” nadir-looking mode to investigat...
Published in: | Geophysical Research Letters |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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American Geophysical Union
2023
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Online Access: | http://nora.nerc.ac.uk/id/eprint/536148/ https://nora.nerc.ac.uk/id/eprint/536148/1/Geophysical%20Research%20Letters%20-%202023%20-%20Willatt%20-%20Retrieval%20of%20Snow%20Depth%20on%20Arctic%20Sea%20Ice%20From%20Surface%E2%80%90Based%20%20Polarimetric%20.pdf https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2023GL104461 |
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ftnerc:oai:nora.nerc.ac.uk:536148 2023-12-10T09:44:05+01:00 Retrieval of Snow Depth on Arctic Sea Ice From Surface-Based, Polarimetric, Dual-Frequency Radar Altimetry Willatt, R. Stroeve, J.C. Nandan, V. Newman, T. Mallett, R. Hendricks, S. Ricker, R. Mead, J. Itkin, P. Tonboe, R. Wagner, D.N. Spreen, G. Liston, G. Schneebeli, M. Krampe, D. Tsamados, M. Demir, O. Wilkinson, J. Jaggi, M. Zhou, L. Huntermann, M. Raphael, I.A. Jutila, A. Oggier, M. 2023-10-28 text http://nora.nerc.ac.uk/id/eprint/536148/ https://nora.nerc.ac.uk/id/eprint/536148/1/Geophysical%20Research%20Letters%20-%202023%20-%20Willatt%20-%20Retrieval%20of%20Snow%20Depth%20on%20Arctic%20Sea%20Ice%20From%20Surface%E2%80%90Based%20%20Polarimetric%20.pdf https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2023GL104461 en eng American Geophysical Union https://nora.nerc.ac.uk/id/eprint/536148/1/Geophysical%20Research%20Letters%20-%202023%20-%20Willatt%20-%20Retrieval%20of%20Snow%20Depth%20on%20Arctic%20Sea%20Ice%20From%20Surface%E2%80%90Based%20%20Polarimetric%20.pdf Willatt, R.; Stroeve, J.C.; Nandan, V.; Newman, T.; Mallett, R.; Hendricks, S.; Ricker, R.; Mead, J.; Itkin, P.; Tonboe, R.; Wagner, D.N.; Spreen, G.; Liston, G.; Schneebeli, M.; Krampe, D.; Tsamados, M.; Demir, O.; Wilkinson, J.; Jaggi, M.; Zhou, L.; Huntermann, M.; Raphael, I.A.; Jutila, A.; Oggier, M. 2023 Retrieval of Snow Depth on Arctic Sea Ice From Surface-Based, Polarimetric, Dual-Frequency Radar Altimetry. Geophysical Research Letters, 50 (20), e2023GL104461. 11, pp. https://doi.org/10.1029/2023GL104461 <https://doi.org/10.1029/2023GL104461> cc_by_4 Publication - Article PeerReviewed 2023 ftnerc https://doi.org/10.1029/2023GL104461 2023-11-10T00:03:13Z Snow depth on sea ice is an Essential Climate Variable and a major source of uncertainty in satellite altimetry-derived sea ice thickness. During winter of the MOSAiC Expedition, the “KuKa” dual-frequency, fully polarized Ku- and Ka-band radar was deployed in “stare” nadir-looking mode to investigate the possibility of combining these two frequencies to retrieve snow depth. Three approaches were investigated: dual-frequency, dual-polarization and waveform shape, and compared to independent snow depth measurements. Novel dual-polarization approaches yielded r2 values up to 0.77. Mean snow depths agreed within 1 cm, even for data sub-banded to CryoSat-2 SIRAL and SARAL AltiKa bandwidths. Snow depths from co-polarized dual-frequency approaches were at least a factor of four too small and had a r2 0.15 or lower. r2 for waveform shape techniques reached 0.72 but depths were underestimated. Snow depth retrievals using polarimetric information or waveform shape may therefore be possible from airborne/satellite radar altimeters. Article in Journal/Newspaper Arctic Arctic Sea ice Natural Environment Research Council: NERC Open Research Archive Arctic Geophysical Research Letters 50 20 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
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ftnerc |
language |
English |
description |
Snow depth on sea ice is an Essential Climate Variable and a major source of uncertainty in satellite altimetry-derived sea ice thickness. During winter of the MOSAiC Expedition, the “KuKa” dual-frequency, fully polarized Ku- and Ka-band radar was deployed in “stare” nadir-looking mode to investigate the possibility of combining these two frequencies to retrieve snow depth. Three approaches were investigated: dual-frequency, dual-polarization and waveform shape, and compared to independent snow depth measurements. Novel dual-polarization approaches yielded r2 values up to 0.77. Mean snow depths agreed within 1 cm, even for data sub-banded to CryoSat-2 SIRAL and SARAL AltiKa bandwidths. Snow depths from co-polarized dual-frequency approaches were at least a factor of four too small and had a r2 0.15 or lower. r2 for waveform shape techniques reached 0.72 but depths were underestimated. Snow depth retrievals using polarimetric information or waveform shape may therefore be possible from airborne/satellite radar altimeters. |
format |
Article in Journal/Newspaper |
author |
Willatt, R. Stroeve, J.C. Nandan, V. Newman, T. Mallett, R. Hendricks, S. Ricker, R. Mead, J. Itkin, P. Tonboe, R. Wagner, D.N. Spreen, G. Liston, G. Schneebeli, M. Krampe, D. Tsamados, M. Demir, O. Wilkinson, J. Jaggi, M. Zhou, L. Huntermann, M. Raphael, I.A. Jutila, A. Oggier, M. |
spellingShingle |
Willatt, R. Stroeve, J.C. Nandan, V. Newman, T. Mallett, R. Hendricks, S. Ricker, R. Mead, J. Itkin, P. Tonboe, R. Wagner, D.N. Spreen, G. Liston, G. Schneebeli, M. Krampe, D. Tsamados, M. Demir, O. Wilkinson, J. Jaggi, M. Zhou, L. Huntermann, M. Raphael, I.A. Jutila, A. Oggier, M. Retrieval of Snow Depth on Arctic Sea Ice From Surface-Based, Polarimetric, Dual-Frequency Radar Altimetry |
author_facet |
Willatt, R. Stroeve, J.C. Nandan, V. Newman, T. Mallett, R. Hendricks, S. Ricker, R. Mead, J. Itkin, P. Tonboe, R. Wagner, D.N. Spreen, G. Liston, G. Schneebeli, M. Krampe, D. Tsamados, M. Demir, O. Wilkinson, J. Jaggi, M. Zhou, L. Huntermann, M. Raphael, I.A. Jutila, A. Oggier, M. |
author_sort |
Willatt, R. |
title |
Retrieval of Snow Depth on Arctic Sea Ice From Surface-Based, Polarimetric, Dual-Frequency Radar Altimetry |
title_short |
Retrieval of Snow Depth on Arctic Sea Ice From Surface-Based, Polarimetric, Dual-Frequency Radar Altimetry |
title_full |
Retrieval of Snow Depth on Arctic Sea Ice From Surface-Based, Polarimetric, Dual-Frequency Radar Altimetry |
title_fullStr |
Retrieval of Snow Depth on Arctic Sea Ice From Surface-Based, Polarimetric, Dual-Frequency Radar Altimetry |
title_full_unstemmed |
Retrieval of Snow Depth on Arctic Sea Ice From Surface-Based, Polarimetric, Dual-Frequency Radar Altimetry |
title_sort |
retrieval of snow depth on arctic sea ice from surface-based, polarimetric, dual-frequency radar altimetry |
publisher |
American Geophysical Union |
publishDate |
2023 |
url |
http://nora.nerc.ac.uk/id/eprint/536148/ https://nora.nerc.ac.uk/id/eprint/536148/1/Geophysical%20Research%20Letters%20-%202023%20-%20Willatt%20-%20Retrieval%20of%20Snow%20Depth%20on%20Arctic%20Sea%20Ice%20From%20Surface%E2%80%90Based%20%20Polarimetric%20.pdf https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2023GL104461 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Sea ice |
genre_facet |
Arctic Arctic Sea ice |
op_relation |
https://nora.nerc.ac.uk/id/eprint/536148/1/Geophysical%20Research%20Letters%20-%202023%20-%20Willatt%20-%20Retrieval%20of%20Snow%20Depth%20on%20Arctic%20Sea%20Ice%20From%20Surface%E2%80%90Based%20%20Polarimetric%20.pdf Willatt, R.; Stroeve, J.C.; Nandan, V.; Newman, T.; Mallett, R.; Hendricks, S.; Ricker, R.; Mead, J.; Itkin, P.; Tonboe, R.; Wagner, D.N.; Spreen, G.; Liston, G.; Schneebeli, M.; Krampe, D.; Tsamados, M.; Demir, O.; Wilkinson, J.; Jaggi, M.; Zhou, L.; Huntermann, M.; Raphael, I.A.; Jutila, A.; Oggier, M. 2023 Retrieval of Snow Depth on Arctic Sea Ice From Surface-Based, Polarimetric, Dual-Frequency Radar Altimetry. Geophysical Research Letters, 50 (20), e2023GL104461. 11, pp. https://doi.org/10.1029/2023GL104461 <https://doi.org/10.1029/2023GL104461> |
op_rights |
cc_by_4 |
op_doi |
https://doi.org/10.1029/2023GL104461 |
container_title |
Geophysical Research Letters |
container_volume |
50 |
container_issue |
20 |
_version_ |
1784887268052303872 |