Bathymetry Estimation Using the Gravity-Geologic Method: An Investigation of Density Contrast Predicted by the Downward Continuation Method
The downward continuation (DWC) method was used to determine the density contrast between the seawater and the ocean bottom topographic mass to estimate accurate bathymetry using the gravity-geologic method (GGM) in two study areas, which are located south of Greenland (Test Area #1: 40 - 50¢XW and...
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ftdoajarticles:oai:doaj.org/article:4713ab69adcc46e09da32d04ed84c830 2023-05-15T16:28:48+02:00 Bathymetry Estimation Using the Gravity-Geologic Method: An Investigation of Density Contrast Predicted by the Downward Continuation Method Yu-Shen Hsiao Jeong Woo Kim Kwang Bae Kim Bang Yong Lee Cheinway Hwang 2011-01-01T00:00:00Z https://doaj.org/article/4713ab69adcc46e09da32d04ed84c830 EN eng Springer http://tao.cgu.org.tw/images/attachments/v223p347.pdf https://doaj.org/toc/1017-0839 https://doaj.org/toc/2311-7680 1017-0839 2311-7680 10.3319/TAO.2010.10.13.01(Oc) https://doaj.org/article/4713ab69adcc46e09da32d04ed84c830 Terrestrial, Atmospheric and Oceanic Sciences, Vol 22, Iss 3, p 347 (2011) Gravity-geologic method Density contrast Downward continuation Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 article 2011 ftdoajarticles 2022-12-30T23:58:12Z The downward continuation (DWC) method was used to determine the density contrast between the seawater and the ocean bottom topographic mass to estimate accurate bathymetry using the gravity-geologic method (GGM) in two study areas, which are located south of Greenland (Test Area #1: 40 - 50¢XW and 50 - 60¢XN) and south of Alaska (Test Area #2: 140 - 150¢XW and 45 - 55¢XN). The data used in this study include altimetry-derived gravity anomalies, shipborne depths and gravity anomalies. Density contrasts of 1.47 and 1.30 g cm-3 were estimated by DWC for the two test areas. The considerations of predicted density contrasts can enhance the accuracy of 3 ~ 4 m for GGM. Article in Journal/Newspaper Greenland Alaska Directory of Open Access Journals: DOAJ Articles Greenland |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Gravity-geologic method Density contrast Downward continuation Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Gravity-geologic method Density contrast Downward continuation Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 Yu-Shen Hsiao Jeong Woo Kim Kwang Bae Kim Bang Yong Lee Cheinway Hwang Bathymetry Estimation Using the Gravity-Geologic Method: An Investigation of Density Contrast Predicted by the Downward Continuation Method |
topic_facet |
Gravity-geologic method Density contrast Downward continuation Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 |
description |
The downward continuation (DWC) method was used to determine the density contrast between the seawater and the ocean bottom topographic mass to estimate accurate bathymetry using the gravity-geologic method (GGM) in two study areas, which are located south of Greenland (Test Area #1: 40 - 50¢XW and 50 - 60¢XN) and south of Alaska (Test Area #2: 140 - 150¢XW and 45 - 55¢XN). The data used in this study include altimetry-derived gravity anomalies, shipborne depths and gravity anomalies. Density contrasts of 1.47 and 1.30 g cm-3 were estimated by DWC for the two test areas. The considerations of predicted density contrasts can enhance the accuracy of 3 ~ 4 m for GGM. |
format |
Article in Journal/Newspaper |
author |
Yu-Shen Hsiao Jeong Woo Kim Kwang Bae Kim Bang Yong Lee Cheinway Hwang |
author_facet |
Yu-Shen Hsiao Jeong Woo Kim Kwang Bae Kim Bang Yong Lee Cheinway Hwang |
author_sort |
Yu-Shen Hsiao |
title |
Bathymetry Estimation Using the Gravity-Geologic Method: An Investigation of Density Contrast Predicted by the Downward Continuation Method |
title_short |
Bathymetry Estimation Using the Gravity-Geologic Method: An Investigation of Density Contrast Predicted by the Downward Continuation Method |
title_full |
Bathymetry Estimation Using the Gravity-Geologic Method: An Investigation of Density Contrast Predicted by the Downward Continuation Method |
title_fullStr |
Bathymetry Estimation Using the Gravity-Geologic Method: An Investigation of Density Contrast Predicted by the Downward Continuation Method |
title_full_unstemmed |
Bathymetry Estimation Using the Gravity-Geologic Method: An Investigation of Density Contrast Predicted by the Downward Continuation Method |
title_sort |
bathymetry estimation using the gravity-geologic method: an investigation of density contrast predicted by the downward continuation method |
publisher |
Springer |
publishDate |
2011 |
url |
https://doaj.org/article/4713ab69adcc46e09da32d04ed84c830 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Alaska |
genre_facet |
Greenland Alaska |
op_source |
Terrestrial, Atmospheric and Oceanic Sciences, Vol 22, Iss 3, p 347 (2011) |
op_relation |
http://tao.cgu.org.tw/images/attachments/v223p347.pdf https://doaj.org/toc/1017-0839 https://doaj.org/toc/2311-7680 1017-0839 2311-7680 10.3319/TAO.2010.10.13.01(Oc) https://doaj.org/article/4713ab69adcc46e09da32d04ed84c830 |
_version_ |
1766018490225917952 |