下一代重力卫星任务研究概述与未来展望  

Research Status and Future Perspectives in Next Generation Gravity Mission

作　　者：冉将军 闫政文 吴云龙 钟敏[3] 肖云[4] 楼立志 王长青 RAN Jiangjun;YAN Zhengwen;WU Yunlong;ZHONG Min;XIAO Yun;LOU Lizhi;WANG Changqing(Department of Earth and Space Sciences,Southern University of Science and Technology,Shenzhen 518055,China;School of Geography and Information Engineering,China University of Geosciences(Wuhan),Wuhan 430074,China;School of Geospatial Engineering and Science,Sun Yat-Sen University,Zhuhai 519082,China;Xi'an Research Institute of Surveying and Mapping,Xi'an 710054,China;College of Surveying and Geo-informatics,Tongji University,Shanghai 200092,China;Innovation Academy for Precision Measurement Science and Technology,Chinese Academy of Sciences,Wuhan 430071,China)

机构地区：[1]南方科技大学地球与空间科学系,广东深圳518055 [2]中国地质大学(武汉)地理与信息工程学院,湖北武汉430074 [3]中山大学测绘科学与技术学院,广东珠海519082 [4]西安测绘研究所,陕西西安710054 [5]同济大学测绘与地理信息学院,上海200092 [6]中国科学院精密测量科学与技术创新研究院,湖北武汉430071

出　　处：《武汉大学学报（信息科学版）》2023年第6期841-857,共17页Geomatics and Information Science of Wuhan University

基　　金：国家自然科学基金(41874004,42174096,41974094);国家重点研发计划(2021YFB3900600)。

摘　　要：近20年来,利用重力卫星研究地球系统的质量分布得到了广泛的发展,使人类对发生在大气、水圈、海洋、极地冰盖等地球圈层的动态过程有了更为深刻的理解。现阶段重力卫星主要包括挑战性小卫星有效载荷计划、地球重力场恢复及气候探测计划(gravity recovery and climate experiment,GRACE),地球重力场稳态海洋环流探测计划和GRACE后续任务,回顾其发展历程,简要说明其在地球重力场解算的研究进展及存在的问题。为了改善现阶段重力卫星的缺点,国际上各研究机构为下一代重力卫星任务(next generation gravity mission,NGGM)提出众多远景规划和模拟分析,梳理了国际上提出的12种下一代重力卫星任务的任务概念、预期精度及任务状态。为了更加清晰介绍NGGM和整体把握其进展,根据星座构型和卫星载荷技术将其划分为4类,即Sharifi型重力卫星星座、Bender型重力卫星星座、星链型重力卫星星座和量子型重力卫星星座,并综合分析其性能,尝试性地给出相应的参考性实施建议。In the past two decades,satellite gravimetry has been widely developed to map the mass distribution on the Earth system.It helps human beings to have a deeper understanding of the dynamic processes that occur on the Earth's surface(e.g.,atmosphere,hydrosphere,ocean,and polar ice sheets).This paper reviews the development history of challenging minisatellite payload,gravity recovery and climate experiment,gravity field and steady-state ocean circulation explorer,and gravity recovery and climate experiment follow-on.We briefly describe the research progress and problems of these gravity satellite missions.In order to overcome the shortcomings of the gravity satellites mentioned above,international research institutions propose numerous plans and simulation analyses for the next generation gravity mission(NGGM).This paper sorts out the task concepts,expected accuracy,and status for 12 kinds of NGGM proposed by international agencies.In order to introduce NGGM more clearly and grasp its current progress,we divide NGGM into four categories according to constellation configuration and satellite payload technology,including Sharifi-type gravity satellite constellation,Bender-type gravity satellite constellation,Satellitelink gravity satellite constellation,and Cold-atom gravity satellite constellation.This paper aims to sort out and summarize the NGGM to grasp the progress at this stage and presents some future perspectives for NGGM.

关 键 词：地球重力场 卫星重力测量 下一代重力卫星任务 

分 类 号：P223[天文地球—大地测量学与测量工程]