卫星重力发展及应用

Progress and application of satellite gravity measurement techniques and theory

卫星重力资料在恢复地球重力场方面具有全球高覆盖率、高空间分辨率、高精度和高时间重复率等优点,为大地测量和地球物理学科的发展开辟了新的途径。本文简要回顾了卫星重力的发展历程,介绍了四种卫星重力探测技术的原理和发展状况,并分析了三颗重力卫星的优点和不足,最后对卫星重力在地球科学中的的应用情况进行了简要总结。

The satellite gravity has advantages of high precision and high resolution in determining the global earth gravity field and its temporal variation;therefore,it provides a new approach in geodesy and geophysics science.In this paper,we briefly introduce the development of satellite gravity,analyze the four kinds of satellite gravity measurement techniques,and discuss their advantages and disadvantages according to the implementation of gravity satellites.Finally,the application of satellite gravity in earth science is simply discussed.