Image Gravimetry: A New Remote Sensing Approach for Gravity Analysis in Geophysics
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Author
Date
2020Type
- Conference Paper
ETH Bibliography
no
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Abstract
In this paper a new Geophysical gravimetry approach is presented, which is based on satellite imagery in remote sensing. The method uses a satellite image, together with a set of points in the image the gravity values of which are known. Template-based spheroidal spline method of interpolation is used to constitute a system of equations to find the values of gravity at other points in the image. A real case study is presented for the Qom region in Iran. Values of gravity are determined from the Landsat satellite image for this region, using 9 points in the image whose gravity values are known. Reference ellipsoid gravity values, which are based on coefficients derived from satellite gravimetry, are computed for this region, as well. Comparison between gravity values derived from Landsat image and those from reference ellipsoid shows that the standard deviation of the results is around 6.71 milli Gal, with the maximum of differences being 35 milli Gal. Show more
Publication status
publishedExternal links
Book title
Proceedings of the Third International Congress of Science and EngineeringPages / Article No.
Publisher
CivilicaEvent
Subject
Image gravimetry; Discrete spheroidal spline; Landsat satellite image; Reference ellipsoid gravity valuesOrganisational unit
09707 - Soja, Benedikt / Soja, Benedikt
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ETH Bibliography
no
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