NDLI: Determination of vertical gradient of gravity anomaly with topographic data

Content Provider	Springer Nature Link
Author	Zhang, Chijun
Copyright Year	1999
Abstract	The role of vertical gradient of gravlty anomaly in the solution and interpretation of geological and geophysical problems on superficial layer is increasingly evident. However, it is difficult to directly observe the vertical gradient of gravity anomaly in mountainous area. Moreover, aerial and satellite gravity gradient measurments have not been put into practice up to date yet. The vertical gradient of gravity anomaly is calculated by use of topographic data and several problems concerned are investigated and discussed. It turns out in theory and practice that the relative error of the vertical gradient determined with the method is only 5%. and when the vertical gradient of gravrty anomaly reaches the maximum 1 000 ns$^{−2}$, the error is only 50 ns$^{−2}$. In addition, how to divide ring zones in calculation and the errors caused by the inaccuracy of landform elevation and rock density has been quantitatively analysed.
Starting Page	1029
Ending Page	1034
Page Count	6
File Format	PDF
ISSN	10016538
Journal	Chinese Science Bulletin
Volume Number	44
Issue Number	11
e-ISSN	18619541
Language	English
Publisher	Science in China Press
Publisher Date	1999-01-01
Publisher Place	Beijing
Access Restriction	Subscribed
Subject Keyword	vertical gradient gravity anomaly topographic mass geoid Life Sciences Physics Chemistry/Food Science Science Geosciences Engineering
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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Determination of vertical gradient of gravity anomaly with topographic data