Contribution of satellite altimetry data in the geophysical investigation of the Red Sea Region, Egypt |
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Authors: | Khaled H Zahran Salah Saleh |
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Institution: | (1) Geodynamic Department, National Research Institute of Astronomy and Geophysics Helwan, Cairo, Egypt |
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Abstract: | Successful development of geodetic satellite missions has aroused new interest in determining global and regional gravity
field based on satellite data. Satellite altimetry data enable direct determination of the geoid over sea regions.
In Egypt, where land and marine geophysical data are inadequate because of rough topography and economic reasons, the use
of satellite altimetry data is of special importance.
The northern Red Sea region has been selected as a site for case study of the current research, after applying spectral analysis
to reveal near-surface structure, the residual geoid of the studied region shows a good correlation with the known geologic
features. Moreover, satellite-based gravity data enhance small-scale features and agrees well with land and marine gravity
data. Thus, geoid undulation and satellite gravity data can be a complementary source of data to determine near-surface and
deep structures. |
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Keywords: | satellite altimetry data Red Sea geoid free air gravity |
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