Inverse of the mohorovicic's surface based on airy-hesikannen's isostatic model
LI Shan-shan,WU Xiaoping,LI Jian-wei(Information Engineering University,Institute of Mapping and Surveying,Zhengzhou 450052,China)
Consistent parameter of Airy-Hesikannen isostatic model of all kinds of terrains (including plains,hills,mountains with different heights and plateaus) leads to low accuracy of isostatic reduction in the calculation of gravity anomaly. Formalae of inverse of the (Mohorovicic's) surface were derived and numerical tests were made. According to the formalae,the parameter of isostatic model could be determined so as to improve the accuracy of calculating isostatic anomaly.