The impact of snow depth, snow density and ice density on sea ice thickness retrieval from satellite radar altimetry: results from the ESA-CCI Sea Ice ECV Project Round Robin Exercise
We assess different methods and input parameters, namely snow depth, snow density and ice density, used in freeboard-to-thickness conversion of Arctic sea ice. This conversion is an important part of sea ice thickness retrieval from spaceborne altimetry. A data base is created comprising sea ice fre...
Published in: | The Cryosphere |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2015
|
Subjects: | |
Online Access: | https://doi.org/10.5194/tc-9-37-2015 https://noa.gwlb.de/receive/cop_mods_00017876 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00017831/tc-9-37-2015.pdf https://tc.copernicus.org/articles/9/37/2015/tc-9-37-2015.pdf |
id |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00017876 |
---|---|
record_format |
openpolar |
spelling |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00017876 2023-05-15T14:59:51+02:00 The impact of snow depth, snow density and ice density on sea ice thickness retrieval from satellite radar altimetry: results from the ESA-CCI Sea Ice ECV Project Round Robin Exercise Kern, S. Khvorostovsky, K. Skourup, H. Rinne, E. Parsakhoo, Z. S. Djepa, V. Wadhams, P. Sandven, S. 2015-01 electronic https://doi.org/10.5194/tc-9-37-2015 https://noa.gwlb.de/receive/cop_mods_00017876 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00017831/tc-9-37-2015.pdf https://tc.copernicus.org/articles/9/37/2015/tc-9-37-2015.pdf eng eng Copernicus Publications The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-9-37-2015 https://noa.gwlb.de/receive/cop_mods_00017876 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00017831/tc-9-37-2015.pdf https://tc.copernicus.org/articles/9/37/2015/tc-9-37-2015.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2015 ftnonlinearchiv https://doi.org/10.5194/tc-9-37-2015 2022-02-08T22:53:29Z We assess different methods and input parameters, namely snow depth, snow density and ice density, used in freeboard-to-thickness conversion of Arctic sea ice. This conversion is an important part of sea ice thickness retrieval from spaceborne altimetry. A data base is created comprising sea ice freeboard derived from satellite radar altimetry between 1993 and 2012 and co-locate observations of total (sea ice + snow) and sea ice freeboard from the Operation Ice Bridge (OIB) and CryoSat Validation Experiment (CryoVEx) airborne campaigns, of sea ice draft from moored and submarine upward looking sonar (ULS), and of snow depth from OIB campaigns, Advanced Microwave Scanning Radiometer (AMSR-E) and the Warren climatology (Warren et al., 1999). We compare the different data sets in spatiotemporal scales where satellite radar altimetry yields meaningful results. An inter-comparison of the snow depth data sets emphasizes the limited usefulness of Warren climatology snow depth for freeboard-to-thickness conversion under current Arctic Ocean conditions reported in other studies. We test different freeboard-to-thickness and freeboard-to-draft conversion approaches. The mean observed ULS sea ice draft agrees with the mean sea ice draft derived from radar altimetry within the uncertainty bounds of the data sets involved. However, none of the approaches are able to reproduce the seasonal cycle in sea ice draft observed by moored ULS. A sensitivity analysis of the freeboard-to-thickness conversion suggests that sea ice density is as important as snow depth. Article in Journal/Newspaper Arctic Arctic Ocean CryoSat Validation Experiment Sea ice The Cryosphere Niedersächsisches Online-Archiv NOA Arctic Arctic Ocean The Cryosphere 9 1 37 52 |
institution |
Open Polar |
collection |
Niedersächsisches Online-Archiv NOA |
op_collection_id |
ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Kern, S. Khvorostovsky, K. Skourup, H. Rinne, E. Parsakhoo, Z. S. Djepa, V. Wadhams, P. Sandven, S. The impact of snow depth, snow density and ice density on sea ice thickness retrieval from satellite radar altimetry: results from the ESA-CCI Sea Ice ECV Project Round Robin Exercise |
topic_facet |
article Verlagsveröffentlichung |
description |
We assess different methods and input parameters, namely snow depth, snow density and ice density, used in freeboard-to-thickness conversion of Arctic sea ice. This conversion is an important part of sea ice thickness retrieval from spaceborne altimetry. A data base is created comprising sea ice freeboard derived from satellite radar altimetry between 1993 and 2012 and co-locate observations of total (sea ice + snow) and sea ice freeboard from the Operation Ice Bridge (OIB) and CryoSat Validation Experiment (CryoVEx) airborne campaigns, of sea ice draft from moored and submarine upward looking sonar (ULS), and of snow depth from OIB campaigns, Advanced Microwave Scanning Radiometer (AMSR-E) and the Warren climatology (Warren et al., 1999). We compare the different data sets in spatiotemporal scales where satellite radar altimetry yields meaningful results. An inter-comparison of the snow depth data sets emphasizes the limited usefulness of Warren climatology snow depth for freeboard-to-thickness conversion under current Arctic Ocean conditions reported in other studies. We test different freeboard-to-thickness and freeboard-to-draft conversion approaches. The mean observed ULS sea ice draft agrees with the mean sea ice draft derived from radar altimetry within the uncertainty bounds of the data sets involved. However, none of the approaches are able to reproduce the seasonal cycle in sea ice draft observed by moored ULS. A sensitivity analysis of the freeboard-to-thickness conversion suggests that sea ice density is as important as snow depth. |
format |
Article in Journal/Newspaper |
author |
Kern, S. Khvorostovsky, K. Skourup, H. Rinne, E. Parsakhoo, Z. S. Djepa, V. Wadhams, P. Sandven, S. |
author_facet |
Kern, S. Khvorostovsky, K. Skourup, H. Rinne, E. Parsakhoo, Z. S. Djepa, V. Wadhams, P. Sandven, S. |
author_sort |
Kern, S. |
title |
The impact of snow depth, snow density and ice density on sea ice thickness retrieval from satellite radar altimetry: results from the ESA-CCI Sea Ice ECV Project Round Robin Exercise |
title_short |
The impact of snow depth, snow density and ice density on sea ice thickness retrieval from satellite radar altimetry: results from the ESA-CCI Sea Ice ECV Project Round Robin Exercise |
title_full |
The impact of snow depth, snow density and ice density on sea ice thickness retrieval from satellite radar altimetry: results from the ESA-CCI Sea Ice ECV Project Round Robin Exercise |
title_fullStr |
The impact of snow depth, snow density and ice density on sea ice thickness retrieval from satellite radar altimetry: results from the ESA-CCI Sea Ice ECV Project Round Robin Exercise |
title_full_unstemmed |
The impact of snow depth, snow density and ice density on sea ice thickness retrieval from satellite radar altimetry: results from the ESA-CCI Sea Ice ECV Project Round Robin Exercise |
title_sort |
impact of snow depth, snow density and ice density on sea ice thickness retrieval from satellite radar altimetry: results from the esa-cci sea ice ecv project round robin exercise |
publisher |
Copernicus Publications |
publishDate |
2015 |
url |
https://doi.org/10.5194/tc-9-37-2015 https://noa.gwlb.de/receive/cop_mods_00017876 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00017831/tc-9-37-2015.pdf https://tc.copernicus.org/articles/9/37/2015/tc-9-37-2015.pdf |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean CryoSat Validation Experiment Sea ice The Cryosphere |
genre_facet |
Arctic Arctic Ocean CryoSat Validation Experiment Sea ice The Cryosphere |
op_relation |
The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-9-37-2015 https://noa.gwlb.de/receive/cop_mods_00017876 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00017831/tc-9-37-2015.pdf https://tc.copernicus.org/articles/9/37/2015/tc-9-37-2015.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-9-37-2015 |
container_title |
The Cryosphere |
container_volume |
9 |
container_issue |
1 |
container_start_page |
37 |
op_container_end_page |
52 |
_version_ |
1766331965309452288 |