Comparison of Marine Gravity Measurements from Shipborne and Satellite Altimetry in the Arctic Ocean
To understand the influence of sea ice on shipborne gravity measurements and the accuracy of the satellite-altimetry-derived gravity field in the Arctic Ocean, we compared shipborne gravity measurements with those obtained from satellite altimetric gravity measurements. The influence of sea ice on t...
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ftdoajarticles:oai:doaj.org/article:2e588df5c1b14a729e2549ffa3786ba1 2023-05-15T14:46:35+02:00 Comparison of Marine Gravity Measurements from Shipborne and Satellite Altimetry in the Arctic Ocean Zilong Ling Lihong Zhao Tao Zhang Guojun Zhai Fanlin Yang 2021-12-01T00:00:00Z https://doi.org/10.3390/rs14010041 https://doaj.org/article/2e588df5c1b14a729e2549ffa3786ba1 EN eng MDPI AG https://www.mdpi.com/2072-4292/14/1/41 https://doaj.org/toc/2072-4292 doi:10.3390/rs14010041 2072-4292 https://doaj.org/article/2e588df5c1b14a729e2549ffa3786ba1 Remote Sensing, Vol 14, Iss 41, p 41 (2021) Arctic Ocean sea ice shipborne gravity data satellite altimetric gravity data Science Q article 2021 ftdoajarticles https://doi.org/10.3390/rs14010041 2022-12-30T19:58:32Z To understand the influence of sea ice on shipborne gravity measurements and the accuracy of the satellite-altimetry-derived gravity field in the Arctic Ocean, we compared shipborne gravity measurements with those obtained from satellite altimetric gravity measurements. The influence of sea ice on the shipborne gravity measurements was mainly concentrated in the 0–6 km wavelength range, and the standard deviation of the noise amplitudes was 2.62 mGal. Compared to ice-free regions, the accuracies in the region with floating ice were reduced by 13% for DTU21 and 6% for SV31. Due to the influence of sea ice, satellite altimetric gravity data lose significant information in the 9–12 km wavelength range. The coherence curve of the shipborne gravity with bathymetry was nearly the same as that of the satellite altimetric gravity. The satellite data contain nearly all of the significant information that is present in the shipborne data. The differences between the shipborne and satellite gravity data are small and can be used to study the crustal structure of the Arctic. Article in Journal/Newspaper Arctic Arctic Ocean Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Remote Sensing 14 1 41 |
institution |
Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic Ocean sea ice shipborne gravity data satellite altimetric gravity data Science Q |
spellingShingle |
Arctic Ocean sea ice shipborne gravity data satellite altimetric gravity data Science Q Zilong Ling Lihong Zhao Tao Zhang Guojun Zhai Fanlin Yang Comparison of Marine Gravity Measurements from Shipborne and Satellite Altimetry in the Arctic Ocean |
topic_facet |
Arctic Ocean sea ice shipborne gravity data satellite altimetric gravity data Science Q |
description |
To understand the influence of sea ice on shipborne gravity measurements and the accuracy of the satellite-altimetry-derived gravity field in the Arctic Ocean, we compared shipborne gravity measurements with those obtained from satellite altimetric gravity measurements. The influence of sea ice on the shipborne gravity measurements was mainly concentrated in the 0–6 km wavelength range, and the standard deviation of the noise amplitudes was 2.62 mGal. Compared to ice-free regions, the accuracies in the region with floating ice were reduced by 13% for DTU21 and 6% for SV31. Due to the influence of sea ice, satellite altimetric gravity data lose significant information in the 9–12 km wavelength range. The coherence curve of the shipborne gravity with bathymetry was nearly the same as that of the satellite altimetric gravity. The satellite data contain nearly all of the significant information that is present in the shipborne data. The differences between the shipborne and satellite gravity data are small and can be used to study the crustal structure of the Arctic. |
format |
Article in Journal/Newspaper |
author |
Zilong Ling Lihong Zhao Tao Zhang Guojun Zhai Fanlin Yang |
author_facet |
Zilong Ling Lihong Zhao Tao Zhang Guojun Zhai Fanlin Yang |
author_sort |
Zilong Ling |
title |
Comparison of Marine Gravity Measurements from Shipborne and Satellite Altimetry in the Arctic Ocean |
title_short |
Comparison of Marine Gravity Measurements from Shipborne and Satellite Altimetry in the Arctic Ocean |
title_full |
Comparison of Marine Gravity Measurements from Shipborne and Satellite Altimetry in the Arctic Ocean |
title_fullStr |
Comparison of Marine Gravity Measurements from Shipborne and Satellite Altimetry in the Arctic Ocean |
title_full_unstemmed |
Comparison of Marine Gravity Measurements from Shipborne and Satellite Altimetry in the Arctic Ocean |
title_sort |
comparison of marine gravity measurements from shipborne and satellite altimetry in the arctic ocean |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doi.org/10.3390/rs14010041 https://doaj.org/article/2e588df5c1b14a729e2549ffa3786ba1 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Sea ice |
genre_facet |
Arctic Arctic Ocean Sea ice |
op_source |
Remote Sensing, Vol 14, Iss 41, p 41 (2021) |
op_relation |
https://www.mdpi.com/2072-4292/14/1/41 https://doaj.org/toc/2072-4292 doi:10.3390/rs14010041 2072-4292 https://doaj.org/article/2e588df5c1b14a729e2549ffa3786ba1 |
op_doi |
https://doi.org/10.3390/rs14010041 |
container_title |
Remote Sensing |
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14 |
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1 |
container_start_page |
41 |
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1766317784631869440 |