Reprocessing of Shirase shipborne gravity data
To compile consistent data sets of Japanese Antarctic Research Expedition (JARE) shipborne gravity data, we applied drift and offset corrections to data sets obtained from JARE-27 to -52 by using a new satellite altimetric gravity model as the reference. Konishi et al. (2006) had previously conducte...
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fttriple:oai:gotriple.eu:oai:doaj.org/article:a73621453d674b00a3bb8dc75df3f9b5 2023-05-15T13:41:39+02:00 Reprocessing of Shirase shipborne gravity data Kazuya Matsuzaki Yoichi Fukuda Yoshifumi Nogi 2014-11-01 https://doi.org/10.15094/00010708 https://doaj.org/article/a73621453d674b00a3bb8dc75df3f9b5 en other eng National Institute of Polar Research doi:10.15094/00010708 0085-7289 2432-079X https://doaj.org/article/a73621453d674b00a3bb8dc75df3f9b5 undefined Antarctic Record, Vol 58, Iss 3, Pp 295-308 (2014) geo stat Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2014 fttriple https://doi.org/10.15094/00010708 2023-01-22T16:49:02Z To compile consistent data sets of Japanese Antarctic Research Expedition (JARE) shipborne gravity data, we applied drift and offset corrections to data sets obtained from JARE-27 to -52 by using a new satellite altimetric gravity model as the reference. Konishi et al. (2006) had previously conducted drift and offset corrections for data obtained up to and including JARE-46 so that the shipborne data fitted the satellite altimetric gravity data of grav.img.11.1 (Sandwell, 2004). Following the method of Konishi et al. (2006), we extracted gravity values from the altimetric gravity model of grav.img.20.1 (Sandwell, 2012) along the ship tracks, and then compared these values with those of the shipborne gravity data. These comparisons revealed large discrepancies near the turning points of the ship tracks, and large drifts and offsets in some of the data sets. We removed data that contained large discrepancies, and applied drift and offset corrections to the remaining data by assuming polynomial functions of time as the drift model. These reprocessed data sets were used for estimating crustal structure near Syowa Station. Article in Journal/Newspaper Antarc* Antarctic Unknown Antarctic Syowa Station |
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geo stat Kazuya Matsuzaki Yoichi Fukuda Yoshifumi Nogi Reprocessing of Shirase shipborne gravity data |
topic_facet |
geo stat |
description |
To compile consistent data sets of Japanese Antarctic Research Expedition (JARE) shipborne gravity data, we applied drift and offset corrections to data sets obtained from JARE-27 to -52 by using a new satellite altimetric gravity model as the reference. Konishi et al. (2006) had previously conducted drift and offset corrections for data obtained up to and including JARE-46 so that the shipborne data fitted the satellite altimetric gravity data of grav.img.11.1 (Sandwell, 2004). Following the method of Konishi et al. (2006), we extracted gravity values from the altimetric gravity model of grav.img.20.1 (Sandwell, 2012) along the ship tracks, and then compared these values with those of the shipborne gravity data. These comparisons revealed large discrepancies near the turning points of the ship tracks, and large drifts and offsets in some of the data sets. We removed data that contained large discrepancies, and applied drift and offset corrections to the remaining data by assuming polynomial functions of time as the drift model. These reprocessed data sets were used for estimating crustal structure near Syowa Station. |
format |
Article in Journal/Newspaper |
author |
Kazuya Matsuzaki Yoichi Fukuda Yoshifumi Nogi |
author_facet |
Kazuya Matsuzaki Yoichi Fukuda Yoshifumi Nogi |
author_sort |
Kazuya Matsuzaki |
title |
Reprocessing of Shirase shipborne gravity data |
title_short |
Reprocessing of Shirase shipborne gravity data |
title_full |
Reprocessing of Shirase shipborne gravity data |
title_fullStr |
Reprocessing of Shirase shipborne gravity data |
title_full_unstemmed |
Reprocessing of Shirase shipborne gravity data |
title_sort |
reprocessing of shirase shipborne gravity data |
publisher |
National Institute of Polar Research |
publishDate |
2014 |
url |
https://doi.org/10.15094/00010708 https://doaj.org/article/a73621453d674b00a3bb8dc75df3f9b5 |
geographic |
Antarctic Syowa Station |
geographic_facet |
Antarctic Syowa Station |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Antarctic Record, Vol 58, Iss 3, Pp 295-308 (2014) |
op_relation |
doi:10.15094/00010708 0085-7289 2432-079X https://doaj.org/article/a73621453d674b00a3bb8dc75df3f9b5 |
op_rights |
undefined |
op_doi |
https://doi.org/10.15094/00010708 |
_version_ |
1766153606825771008 |