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Gravimetric Terrain Correction using Triangular Element Method  

Rim, Hyoung-Rea (Korea Institute of Geoscience and Mineral Resources, Mineral Resources Research Division)
Lee, Heui-Soon (Gyeongin National University of Education, Department of Science Education)
Park, Young-Sue (Korea Institute of Geoscience and Mineral Resources, Mineral Resources Research Division)
Lim, Mu-Taek (Korea Institute of Geoscience and Mineral Resources, Mineral Resources Research Division)
Jung, Hyun-Key (Korea Institute of Geoscience and Mineral Resources, Mineral Resources Research Division)
Publication Information
Geophysics and Geophysical Exploration / v.13, no.2, 2010 , pp. 169-174 More about this Journal
Abstract
We developed a precise terrain correction program using triangular element method (TEM) for microgravity data processing. TEM calculates gravity attraction of arbitrary polyhedra whose surface is patched by triangles. We showed that TEM can calculate more precise terrain effect than conventional rectangular prism method. We tested the accuracy of TEM on the cone model which has analytic solution. Also, we tested the accuracy of TEM on the slope model, this results showed that there are big differences calculated by TEM and rectangular prsim method (RPM) on slope model. The developed terrain correction program was applied on the gravity data on the southern area near sea shore of Korean peninsula, calculated terrain effect very precisely.
Keywords
terrain correction; triangular element method; gravity survey;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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