国际新一代卫星重力探测计划研究现状与进展  

Research Status and Progress in International Next-Generation Satellite Gravity Measurement Missions

作　　者：宁津生[1,2] 王正涛[1,2] 超能芳[1] 

机构地区：[1]武汉大学测绘学院,湖北武汉430079 [2]武汉大学地球空间环境与大地测量教育部重点实验室,湖北武汉430079

出　　处：《武汉大学学报（信息科学版）》2016年第1期1-8,共8页Geomatics and Information Science of Wuhan University

基　　金：国家863计划(2013AA122501);国家测绘地理信息局基础测绘项目(B2551);国家973计划(2013CB733301;2013CB733302);国家自然科学基金(41274032;41474018)~~

摘　　要：回顾了卫星重力探测技术的发展,讨论了当前卫星重力计划CHAMP、GRACE、GOCE研究现状和存在的主要问题,评述了国际下一代4个卫星重力计划E.motion、GRACE-FO、NGGM和GETRIS的最新研究进展,并介绍了SWARM卫星星群任务在地球重力场研究中的作用和地位,最后对我国未来卫星重力计划的实施提出了几点建议。We review the development of the satellite gravity measuring techniques.The research status of present satellite gravity missions,including CHAMP,GRACE,and GOCE,are discussed and the main shortcomings of GRACE are analyzed.Some suggestions for determining gravity field at higher precision and higher resolution in space and time are proposed,which include reduction of the current level of aliasing,the elimination of systematic distortions（non-isotropic sensitivity of a single pair low-low SST）,and the improvement in the separability of the observed geophysical signals are discussed.The progress of the next four international satellite gravity missions：E.motion,GRACEFO,NGGM,GETRIS,are presented and the role and status of the SWARM satellite constellation mission on the earth＇s gravity field research are summarized.Finally,several suggestions about the implementation of the future satellite gravity missions in China are put forward.The next generation satellite gravity systems should be capable of global determination of changes in the Earth＇s gravity field from global down to regional spatial scales and at time scales of two weeks or shorter.

关 键 词：卫星重力测量 E.motion GRACE-FO NGGM GETRIS SWARM 

分 类 号：P223.0[天文地球—大地测量学与测量工程] P223.6[天文地球—测绘科学与技术]