PRECISION AND DEVIATION COMPARISON BETWEEN ICESAT AND ENVISAT IN TYPICAL ICE GAINING AND LOSING REGIONS OF ANTARCTICA
This paper analyzes the precision and deviation of elevations acquired from Envisat and The Ice, Cloud and Land Elevation Satellite (ICESat) over typical ice gaining and losing regions, i.e. Lambert-Amery System (LAS) in east Antarctica, and Amundsen Sea Sector (ASS) in west Antarctica, during the s...
Published in: | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Copernicus Publications
2017
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00008780 2023-05-15T13:23:46+02:00 PRECISION AND DEVIATION COMPARISON BETWEEN ICESAT AND ENVISAT IN TYPICAL ICE GAINING AND LOSING REGIONS OF ANTARCTICA Du, W. Chen, L. Xie, H. Hai, G. Zhang, S. Tong, X. 2017-09 electronic https://doi.org/10.5194/isprs-archives-XLII-2-W7-1513-2017 https://noa.gwlb.de/receive/cop_mods_00008780 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00008737/isprs-archives-XLII-2-W7-1513-2017.pdf https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W7/1513/2017/isprs-archives-XLII-2-W7-1513-2017.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-W7-1513-2017 https://noa.gwlb.de/receive/cop_mods_00008780 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00008737/isprs-archives-XLII-2-W7-1513-2017.pdf https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W7/1513/2017/isprs-archives-XLII-2-W7-1513-2017.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-W7-1513-2017 2022-02-08T22:57:53Z This paper analyzes the precision and deviation of elevations acquired from Envisat and The Ice, Cloud and Land Elevation Satellite (ICESat) over typical ice gaining and losing regions, i.e. Lambert-Amery System (LAS) in east Antarctica, and Amundsen Sea Sector (ASS) in west Antarctica, during the same period from 2003 to 2008. We used GLA12 dataset of ICESat and Level 2 data of Envisat. Data preprocessing includes data filtering, projection transformation and track classification. Meanwhile, the slope correction is applied to Envisat data and saturation correction for ICESat data. Then the crossover analysis was used to obtain the crossing points of the ICESat tracks, Envisat tracks and ICESat-Envisat tracks separately. The two tracks we chose for cross-over analysis should be in the same campaign for ICESat (within 33 days) or the same cycle for Envisat (within 35 days).The standard deviation of a set of elevation residuals at time-coincident crossovers is calculated as the precision of each satellite while the mean value is calculated as the deviation of ICESat-Envisat. Generally, the ICESat laser altimeter gets a better precision than the Envisat radar altimeter. For Amundsen Sea Sector, the ICESat precision is found to vary from 8.9 cm to 17 cm and the Envisat precision varies from 0.81 m to 1.57 m. For LAS area, the ICESat precision is found to vary from 6.7 cm to 14.3 cm and the Envisat precision varies from 0.46 m to 0.81 m. Comparison result between Envisat and ICESat elevations shows a mean difference of 0.43 ±7.14 m for Amundsen Sea Sector and 0.53 ± 1.23 m over LAS. Article in Journal/Newspaper Amundsen Sea Antarc* Antarctica East Antarctica West Antarctica Niedersächsisches Online-Archiv NOA East Antarctica West Antarctica Amundsen Sea Amery ENVELOPE(-94.063,-94.063,56.565,56.565) The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W7 1513 1516 |
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Open Polar |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Du, W. Chen, L. Xie, H. Hai, G. Zhang, S. Tong, X. PRECISION AND DEVIATION COMPARISON BETWEEN ICESAT AND ENVISAT IN TYPICAL ICE GAINING AND LOSING REGIONS OF ANTARCTICA |
topic_facet |
article Verlagsveröffentlichung |
description |
This paper analyzes the precision and deviation of elevations acquired from Envisat and The Ice, Cloud and Land Elevation Satellite (ICESat) over typical ice gaining and losing regions, i.e. Lambert-Amery System (LAS) in east Antarctica, and Amundsen Sea Sector (ASS) in west Antarctica, during the same period from 2003 to 2008. We used GLA12 dataset of ICESat and Level 2 data of Envisat. Data preprocessing includes data filtering, projection transformation and track classification. Meanwhile, the slope correction is applied to Envisat data and saturation correction for ICESat data. Then the crossover analysis was used to obtain the crossing points of the ICESat tracks, Envisat tracks and ICESat-Envisat tracks separately. The two tracks we chose for cross-over analysis should be in the same campaign for ICESat (within 33 days) or the same cycle for Envisat (within 35 days).The standard deviation of a set of elevation residuals at time-coincident crossovers is calculated as the precision of each satellite while the mean value is calculated as the deviation of ICESat-Envisat. Generally, the ICESat laser altimeter gets a better precision than the Envisat radar altimeter. For Amundsen Sea Sector, the ICESat precision is found to vary from 8.9 cm to 17 cm and the Envisat precision varies from 0.81 m to 1.57 m. For LAS area, the ICESat precision is found to vary from 6.7 cm to 14.3 cm and the Envisat precision varies from 0.46 m to 0.81 m. Comparison result between Envisat and ICESat elevations shows a mean difference of 0.43 ±7.14 m for Amundsen Sea Sector and 0.53 ± 1.23 m over LAS. |
format |
Article in Journal/Newspaper |
author |
Du, W. Chen, L. Xie, H. Hai, G. Zhang, S. Tong, X. |
author_facet |
Du, W. Chen, L. Xie, H. Hai, G. Zhang, S. Tong, X. |
author_sort |
Du, W. |
title |
PRECISION AND DEVIATION COMPARISON BETWEEN ICESAT AND ENVISAT IN TYPICAL ICE GAINING AND LOSING REGIONS OF ANTARCTICA |
title_short |
PRECISION AND DEVIATION COMPARISON BETWEEN ICESAT AND ENVISAT IN TYPICAL ICE GAINING AND LOSING REGIONS OF ANTARCTICA |
title_full |
PRECISION AND DEVIATION COMPARISON BETWEEN ICESAT AND ENVISAT IN TYPICAL ICE GAINING AND LOSING REGIONS OF ANTARCTICA |
title_fullStr |
PRECISION AND DEVIATION COMPARISON BETWEEN ICESAT AND ENVISAT IN TYPICAL ICE GAINING AND LOSING REGIONS OF ANTARCTICA |
title_full_unstemmed |
PRECISION AND DEVIATION COMPARISON BETWEEN ICESAT AND ENVISAT IN TYPICAL ICE GAINING AND LOSING REGIONS OF ANTARCTICA |
title_sort |
precision and deviation comparison between icesat and envisat in typical ice gaining and losing regions of antarctica |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/isprs-archives-XLII-2-W7-1513-2017 https://noa.gwlb.de/receive/cop_mods_00008780 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00008737/isprs-archives-XLII-2-W7-1513-2017.pdf https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W7/1513/2017/isprs-archives-XLII-2-W7-1513-2017.pdf |
long_lat |
ENVELOPE(-94.063,-94.063,56.565,56.565) |
geographic |
East Antarctica West Antarctica Amundsen Sea Amery |
geographic_facet |
East Antarctica West Antarctica Amundsen Sea Amery |
genre |
Amundsen Sea Antarc* Antarctica East Antarctica West Antarctica |
genre_facet |
Amundsen Sea Antarc* Antarctica East Antarctica West Antarctica |
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-W7-1513-2017 https://noa.gwlb.de/receive/cop_mods_00008780 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00008737/isprs-archives-XLII-2-W7-1513-2017.pdf https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W7/1513/2017/isprs-archives-XLII-2-W7-1513-2017.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-W7-1513-2017 |
container_title |
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
container_volume |
XLII-2/W7 |
container_start_page |
1513 |
op_container_end_page |
1516 |
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1766375218797871104 |