Study of Chinese Continental Crustal Thickness Based on the Data of EGM2008
G. Ding†*, M. Perrella‡
†Earthquake Administration of Jilin Province, Changchun, Jilin, 130117, China
‡Thermochemical Power Group, University of Genova, DiMSET, Italy
ABSTRACT: Focusing on the application of earth gravity model (EGM2008) in global precision evaluation, this paper will emphatically analyze the relationship between Chinese continental crustal thicknesses and gravity data of EGM2008, discussing the precision of gravity data of EGM2008 in mainland China in inverse proportion to the topographic complex degree. The model precision is the highest in flat eastern part, while that of western part is the lowest. Nearly 80% of the area on the Chinese mainland, the precision of GM2008 data can reach 10mGal.
Keywords : EGM2008 model; Gravity field of the earth; Crustal thickness.
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