ANALYSIS OF WAVEFORM RETRACKING METHODS IN ANTARCTIC ICE SHEET BASED ON CRYOSAT-2 DATA
Satellite altimetry plays an important role in many geoscientific and environmental studies of Antarctic ice sheet. The ranging accuracy is degenerated near coasts or over nonocean surfaces, due to waveform contamination. A postprocess technique, known as waveform retracking, can be used to retrack...
Published in: | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
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Language: | English |
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Copernicus Publications
2017
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Online Access: | https://doi.org/10.5194/isprs-archives-XLII-2-W7-1561-2017 https://noa.gwlb.de/receive/cop_mods_00008786 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00008743/isprs-archives-XLII-2-W7-1561-2017.pdf https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W7/1561/2017/isprs-archives-XLII-2-W7-1561-2017.pdf |
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00008786 2023-05-15T13:34:49+02:00 ANALYSIS OF WAVEFORM RETRACKING METHODS IN ANTARCTIC ICE SHEET BASED ON CRYOSAT-2 DATA Xiao, F. Li, F. Zhang, S. Hao, W. Yuan, L. Zhu, T. Zhang, Y. Zhu, C. 2017-09 electronic https://doi.org/10.5194/isprs-archives-XLII-2-W7-1561-2017 https://noa.gwlb.de/receive/cop_mods_00008786 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00008743/isprs-archives-XLII-2-W7-1561-2017.pdf https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W7/1561/2017/isprs-archives-XLII-2-W7-1561-2017.pdf eng eng Copernicus Publications ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences -- http://www.isprs.org/publications/archives.aspx -- 2194-9034 https://doi.org/10.5194/isprs-archives-XLII-2-W7-1561-2017 https://noa.gwlb.de/receive/cop_mods_00008786 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00008743/isprs-archives-XLII-2-W7-1561-2017.pdf https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W7/1561/2017/isprs-archives-XLII-2-W7-1561-2017.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2017 ftnonlinearchiv https://doi.org/10.5194/isprs-archives-XLII-2-W7-1561-2017 2022-02-08T22:57:50Z Satellite altimetry plays an important role in many geoscientific and environmental studies of Antarctic ice sheet. The ranging accuracy is degenerated near coasts or over nonocean surfaces, due to waveform contamination. A postprocess technique, known as waveform retracking, can be used to retrack the corrupt waveform and in turn improve the ranging accuracy. In 2010, the CryoSat-2 satellite was launched with the Synthetic aperture Interferometric Radar ALtimeter (SIRAL) onboard. Satellite altimetry waveform retracking methods are discussed in the paper. Six retracking methods including the OCOG method, the threshold method with 10 %, 25 % and 50 % threshold level, the linear and exponential 5-β parametric methods are used to retrack CryoSat-2 waveform over the transect from Zhongshan Station to Dome A. The results show that the threshold retracker performs best with the consideration of waveform retracking success rate and RMS of retracking distance corrections. The linear 5-β parametric retracker gives best waveform retracking precision, but cannot make full use of the waveform data. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet Niedersächsisches Online-Archiv NOA Antarctic Zhongshan ENVELOPE(76.371,76.371,-69.373,-69.373) Zhongshan Station ENVELOPE(76.371,76.371,-69.373,-69.373) The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W7 1561 1567 |
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Open Polar |
collection |
Niedersächsisches Online-Archiv NOA |
op_collection_id |
ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Xiao, F. Li, F. Zhang, S. Hao, W. Yuan, L. Zhu, T. Zhang, Y. Zhu, C. ANALYSIS OF WAVEFORM RETRACKING METHODS IN ANTARCTIC ICE SHEET BASED ON CRYOSAT-2 DATA |
topic_facet |
article Verlagsveröffentlichung |
description |
Satellite altimetry plays an important role in many geoscientific and environmental studies of Antarctic ice sheet. The ranging accuracy is degenerated near coasts or over nonocean surfaces, due to waveform contamination. A postprocess technique, known as waveform retracking, can be used to retrack the corrupt waveform and in turn improve the ranging accuracy. In 2010, the CryoSat-2 satellite was launched with the Synthetic aperture Interferometric Radar ALtimeter (SIRAL) onboard. Satellite altimetry waveform retracking methods are discussed in the paper. Six retracking methods including the OCOG method, the threshold method with 10 %, 25 % and 50 % threshold level, the linear and exponential 5-β parametric methods are used to retrack CryoSat-2 waveform over the transect from Zhongshan Station to Dome A. The results show that the threshold retracker performs best with the consideration of waveform retracking success rate and RMS of retracking distance corrections. The linear 5-β parametric retracker gives best waveform retracking precision, but cannot make full use of the waveform data. |
format |
Article in Journal/Newspaper |
author |
Xiao, F. Li, F. Zhang, S. Hao, W. Yuan, L. Zhu, T. Zhang, Y. Zhu, C. |
author_facet |
Xiao, F. Li, F. Zhang, S. Hao, W. Yuan, L. Zhu, T. Zhang, Y. Zhu, C. |
author_sort |
Xiao, F. |
title |
ANALYSIS OF WAVEFORM RETRACKING METHODS IN ANTARCTIC ICE SHEET BASED ON CRYOSAT-2 DATA |
title_short |
ANALYSIS OF WAVEFORM RETRACKING METHODS IN ANTARCTIC ICE SHEET BASED ON CRYOSAT-2 DATA |
title_full |
ANALYSIS OF WAVEFORM RETRACKING METHODS IN ANTARCTIC ICE SHEET BASED ON CRYOSAT-2 DATA |
title_fullStr |
ANALYSIS OF WAVEFORM RETRACKING METHODS IN ANTARCTIC ICE SHEET BASED ON CRYOSAT-2 DATA |
title_full_unstemmed |
ANALYSIS OF WAVEFORM RETRACKING METHODS IN ANTARCTIC ICE SHEET BASED ON CRYOSAT-2 DATA |
title_sort |
analysis of waveform retracking methods in antarctic ice sheet based on cryosat-2 data |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/isprs-archives-XLII-2-W7-1561-2017 https://noa.gwlb.de/receive/cop_mods_00008786 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00008743/isprs-archives-XLII-2-W7-1561-2017.pdf https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W7/1561/2017/isprs-archives-XLII-2-W7-1561-2017.pdf |
long_lat |
ENVELOPE(76.371,76.371,-69.373,-69.373) ENVELOPE(76.371,76.371,-69.373,-69.373) |
geographic |
Antarctic Zhongshan Zhongshan Station |
geographic_facet |
Antarctic Zhongshan Zhongshan Station |
genre |
Antarc* Antarctic Ice Sheet |
genre_facet |
Antarc* Antarctic Ice Sheet |
op_relation |
ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences -- http://www.isprs.org/publications/archives.aspx -- 2194-9034 https://doi.org/10.5194/isprs-archives-XLII-2-W7-1561-2017 https://noa.gwlb.de/receive/cop_mods_00008786 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00008743/isprs-archives-XLII-2-W7-1561-2017.pdf https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W7/1561/2017/isprs-archives-XLII-2-W7-1561-2017.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/isprs-archives-XLII-2-W7-1561-2017 |
container_title |
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
container_volume |
XLII-2/W7 |
container_start_page |
1561 |
op_container_end_page |
1567 |
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1766057991343177728 |