The forward modelling and analysis of magnetic field on the East Asia area using tesseroids

Zhaoxi Chen, China University of Geosciences(Beijing), School of Geophysics and Informaiton Technology, Beijing, China, Xiaohong Meng, China University of Geosciences (Beijing), School of Geophysics and Information Technology, Beijing, China and Guangce Xu, China University of Geosciences(Beijing), School of Geophysics and Information Technology, Beijing, China