利用卫星重力数据研究中国及邻域地壳厚度

Crustal Thickness computed by using satellite gravity data in China and its Adjacent Regions

本文以中国大陆及邻域地壳厚度为研究对象,采用GRACE提供的GX OG-2-GCM模型数据计算自由空气重力异常,通过确定地核与地幔的质量,分离出由地壳部分产生的重力异常并经过布格改正得到布格重力异常,利用Park公式求出了中国大陆地壳厚度的分布,结果与以前地壳厚度资料相符合.

The target is to study crustal thickness of China and its adjacent regions in this paper.We corrected free-air anomalies derived from a combination of terrestrial data with data form GRACE satellite（model GX-OG-2-GCM）by determining the mass of the earth＇s mantle and core to isolate the crustal thickness information.The inversion used here is based on the formula of Parker.The results accord with the previous data of crustal thickness.