碩士 / 國立交通大學 / 土木工程學系 / 85 / Global marine gravity anomalies at a 2'x2'grid have been determined fromSe
asat﹑Geosat﹑ERS-1 and TOPEX/POSEIDON altimeter data. The inverse VeningMeine
sz formula with an 1D FFT method was used to compute gravity anomaliesfrom gri
dded north-south and west-east geoid gradients, in a remove-restoreprocedure w
ith the EGM96 gravity model as the reference field. The data coverthe area 0°
to 360° in longitude and 72°S to 72°N in latitude. In the 12 test areas
where ship gravity and satellite-derived gravitywere compared, rms agreements
of 6-10 mgals were obtained and the gravityanomalies derived in this work are
0.5 mgal on average better than thosederived by Sandwell and Smith (1997). Th
e gravity anomalies are locatedat an ftp site (ftp://gps.cv.nctu.edu.tw) where
an application program isavailable for extracting data in a subarea.
| Identifer | oai:union.ndltd.org:TW/085NCTU0015040 |
| Creators | Kao, Eu-Chi, 高豫 |
| Contributors | Cheinway Hwang, 黃金維, --- |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 119 |
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