Surface Properties Linked to Retrieval Uncertainty of Satellite Sea-Ice Thickness with Upward-Looking Sonar Measurements.
One of the key sources of uncertainties in sea ice freeboard and thickness estimates derived from satellite radar altimetry results from changes in sea ice surface properties. In this study, we analyse this effect, comparing upward-looking sonar (ULS) measurements in the Beaufort Sea over the period...
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Online Access: | https://epic.awi.de/id/eprint/53046/ https://epic.awi.de/id/eprint/53046/1/remotesensing-12-03094.pdf https://www.mdpi.com/2072-4292/12/18/3094 https://hdl.handle.net/10013/epic.0f2614f0-3387-4fec-8675-9e9c37ee3ea9 https://hdl.handle.net/ |
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ftawi:oai:epic.awi.de:53046 2023-05-15T15:40:32+02:00 Surface Properties Linked to Retrieval Uncertainty of Satellite Sea-Ice Thickness with Upward-Looking Sonar Measurements. Khvorostovsky, Kirill Hendricks, Stefan Rinne, Eero 2020-09-21 application/pdf https://epic.awi.de/id/eprint/53046/ https://epic.awi.de/id/eprint/53046/1/remotesensing-12-03094.pdf https://www.mdpi.com/2072-4292/12/18/3094 https://hdl.handle.net/10013/epic.0f2614f0-3387-4fec-8675-9e9c37ee3ea9 https://hdl.handle.net/ unknown https://epic.awi.de/id/eprint/53046/1/remotesensing-12-03094.pdf https://hdl.handle.net/ Khvorostovsky, K. , Hendricks, S. orcid:0000-0002-1412-3146 and Rinne, E. (2020) Surface Properties Linked to Retrieval Uncertainty of Satellite Sea-Ice Thickness with Upward-Looking Sonar Measurements. , Remote Sensing, 12 (18), p. 3094 . doi:10.3390/rs12183094 <https://doi.org/10.3390/rs12183094> , hdl:10013/epic.0f2614f0-3387-4fec-8675-9e9c37ee3ea9 EPIC3Remote Sensing, 12(18), pp. 3094, ISSN: 2072-4292 Article isiRev 2020 ftawi https://doi.org/10.3390/rs12183094 2021-12-24T15:45:56Z One of the key sources of uncertainties in sea ice freeboard and thickness estimates derived from satellite radar altimetry results from changes in sea ice surface properties. In this study, we analyse this effect, comparing upward-looking sonar (ULS) measurements in the Beaufort Sea over the period 2003–2018 to sea ice draft derived from Envisat and Cryosat-2 data. We show that the sea ice draft growth underestimation observed for the most of winter seasons depends on the surface properties preconditioned by the melt intensity during the preceding summer. The comparison of sea ice draft time series in the Cryosat-2 era indicates that applying 50% retracker thresholds, used to produce the European Space Agency’s Climate Change Initiative (CCI) product, provide better agreement between satellite retrievals and ULS data than the 80% threshold that is closer to the expected physical waveform interpretation. Our results, therefore, indicate compensating error contributions in the full end-to-end sea-ice thickness processing chain, which prevents the quantification of individual factors with sea-ice thickness/draft validation data alone Article in Journal/Newspaper Beaufort Sea Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Remote Sensing 12 18 3094 |
institution |
Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
One of the key sources of uncertainties in sea ice freeboard and thickness estimates derived from satellite radar altimetry results from changes in sea ice surface properties. In this study, we analyse this effect, comparing upward-looking sonar (ULS) measurements in the Beaufort Sea over the period 2003–2018 to sea ice draft derived from Envisat and Cryosat-2 data. We show that the sea ice draft growth underestimation observed for the most of winter seasons depends on the surface properties preconditioned by the melt intensity during the preceding summer. The comparison of sea ice draft time series in the Cryosat-2 era indicates that applying 50% retracker thresholds, used to produce the European Space Agency’s Climate Change Initiative (CCI) product, provide better agreement between satellite retrievals and ULS data than the 80% threshold that is closer to the expected physical waveform interpretation. Our results, therefore, indicate compensating error contributions in the full end-to-end sea-ice thickness processing chain, which prevents the quantification of individual factors with sea-ice thickness/draft validation data alone |
format |
Article in Journal/Newspaper |
author |
Khvorostovsky, Kirill Hendricks, Stefan Rinne, Eero |
spellingShingle |
Khvorostovsky, Kirill Hendricks, Stefan Rinne, Eero Surface Properties Linked to Retrieval Uncertainty of Satellite Sea-Ice Thickness with Upward-Looking Sonar Measurements. |
author_facet |
Khvorostovsky, Kirill Hendricks, Stefan Rinne, Eero |
author_sort |
Khvorostovsky, Kirill |
title |
Surface Properties Linked to Retrieval Uncertainty of Satellite Sea-Ice Thickness with Upward-Looking Sonar Measurements. |
title_short |
Surface Properties Linked to Retrieval Uncertainty of Satellite Sea-Ice Thickness with Upward-Looking Sonar Measurements. |
title_full |
Surface Properties Linked to Retrieval Uncertainty of Satellite Sea-Ice Thickness with Upward-Looking Sonar Measurements. |
title_fullStr |
Surface Properties Linked to Retrieval Uncertainty of Satellite Sea-Ice Thickness with Upward-Looking Sonar Measurements. |
title_full_unstemmed |
Surface Properties Linked to Retrieval Uncertainty of Satellite Sea-Ice Thickness with Upward-Looking Sonar Measurements. |
title_sort |
surface properties linked to retrieval uncertainty of satellite sea-ice thickness with upward-looking sonar measurements. |
publishDate |
2020 |
url |
https://epic.awi.de/id/eprint/53046/ https://epic.awi.de/id/eprint/53046/1/remotesensing-12-03094.pdf https://www.mdpi.com/2072-4292/12/18/3094 https://hdl.handle.net/10013/epic.0f2614f0-3387-4fec-8675-9e9c37ee3ea9 https://hdl.handle.net/ |
genre |
Beaufort Sea Sea ice |
genre_facet |
Beaufort Sea Sea ice |
op_source |
EPIC3Remote Sensing, 12(18), pp. 3094, ISSN: 2072-4292 |
op_relation |
https://epic.awi.de/id/eprint/53046/1/remotesensing-12-03094.pdf https://hdl.handle.net/ Khvorostovsky, K. , Hendricks, S. orcid:0000-0002-1412-3146 and Rinne, E. (2020) Surface Properties Linked to Retrieval Uncertainty of Satellite Sea-Ice Thickness with Upward-Looking Sonar Measurements. , Remote Sensing, 12 (18), p. 3094 . doi:10.3390/rs12183094 <https://doi.org/10.3390/rs12183094> , hdl:10013/epic.0f2614f0-3387-4fec-8675-9e9c37ee3ea9 |
op_doi |
https://doi.org/10.3390/rs12183094 |
container_title |
Remote Sensing |
container_volume |
12 |
container_issue |
18 |
container_start_page |
3094 |
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1766372948328841216 |