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力学进展 ›› 2014, Vol. 44 ›› Issue (44): 201408-201408.doi: 10.6052/1000-0992-14-047

• 综述 • 上一篇    下一篇

地球重力场空间探测: 回顾与展望

罗子人1,钟敏2,边星3,董鹏4,董玉辉1,高伟4,李洪银5, 李玉琼1, 刘河山1, 冉将军2,邵明学4, 唐文林4, 徐鹏4, 杨然6, 靳刚1   

  1. 1 中国科学院力学研究所
    2 中国科学院测量与地球物理研究所
    3 首都师范大学物理系
    4 中国科学院数学与系统科学研究院
    5 华中科技大学物理学院
    6 中国航天科技集团公司第九研究院第十三研究所
  • 出版日期:2014-04-01 发布日期:2014-10-29
  • 通讯作者: 罗子人, 1980 年出生, 2010 年获中国科学院数学与系统科学研究院理学博士,现任中国科学院力学研究所助理研究员, 参与了中国短臂长空间引力波探测器的可行性研究和中国先进重力卫星关键技术论证工作, 主要从事引力波探测的空间激光干涉测距技术的理论分析和方案设计. E-mail:gajin@imech.ac.cn
  • 作者简介:靳刚, 中科院力学所研究员, 法国巴黎皮埃尔玛丽居里大学和ESPCI 物理学博士, 曾任法国国家科研中心(CNRS) 合作研究员; 瑞典Linkoping 大学客座学者; 葡萄牙里斯本大学客座教授. 主要从事纳尺度光学测量及其应用研究, 近些年开展了空间激光干涉测距等研究.

Mapping Earth's gravity in space: Review and future perspective

LUOZiren  1, Min ZHONG2,  Xing BIAN3,  DONG Peng4,  DONG Yuhui1, GAO Wei 4, LI Hongyin 5, LI  Yuqiong1,  LIU Heshan1,  RAN Jiangjun2, SHAO Mingxue4, TANG Wenlin4,  XU Peng4,  YANG Ran6,  JIN Gang1   

  1. 1 Institute of Mechanics, Chinese Academy of Science
    2 Institute of Geodesy and Geophysics, Chinese Academy of Science
    3 Physics Department, Capital Normal University
    4 Academy of Mathematics and system science, Chinese Academy of Science
    5 School of Physics, Huazhong University of Science and Technology
    6 The Thirteenth Institute, Ninth Academy of research, China Aerospace Science and Technology Corporation  
  • Online:2014-04-01 Published:2014-10-29

摘要:

 地球重力场的科学数据在地球测绘学、冰川学、陆地水循环、固体地球物理、灾害监控及国防军事等领域具有重要应用价值. 美、德合作研制的地球重力场反演与气候实验(gravity recovery and climate experiment, GRACE)卫星, 有力地推动了地球重力场测量、反演和应用. 为进一步提高重力卫星科学数据的时、空分辨率, 扩展应用领域, 中国及欧美等国都考虑发射升级的重力卫星, 即后GRACE 计划(GRACE-follow-on). 本文将简单回顾重力卫星的发展历程, 介绍重力卫星的数据采集技术和反演方法, 亦着重阐述后GRACE计划的测量方法学、关键技术及预期结果.

关键词:

空间地球重力场探测| 激光干涉测距| 无拖曳航天| 精密卫星定轨

Abstract:

The distribution of earth’s gravity field not only changes along with the altitude, latitude, crustal composition and mantle depth, but also varies together with the continental drift, glacier evolution, ocean current, underground water changing and phenomena of ice and snow. Therefore, the scientific data of earth’s gravity field is essential to many research fields, such as the geological hazard monitoring, geodetic survey, glaciology, hydrologic circle, solid earth physics and national defense. The measurement, recovery and application of gravity of earth were greatly promoted by the development of gravity satellite missions, for example the GRACE (Gravity Recovery And Climate Experiment) mission. In order to improve the temporal and spatial resolution of satellite gravity data, China, USA and European countries were considering launching upgraded gravity satellite missions, namely the GRACE-follow-on mission. The basic idea is to employ the laser interferometer
measurement system to replace the GRACE’s microwave ranging system. In addition, the drag-free technics is introduced to eliminate the disturbance of non-inertial
forces posed upon laser measurement system. A brief history of the development of gravity satellite missions and the earth gravity recovery techniques were reviewed here. The measurement methodology, key technologies and expected results of next generation GRACE mission were also slightly touched upon.

Key words:

space earth gravity mapping| gravity satellite| gravity recovery| laser interferometer measurement system| drag-free technics|precise orbital determination

中图分类号: 

  • P228