星载重力测量和固体地球的透视  

Spaceborne gravity measurements and insights into the solid Earth

作　　者：胡明城[1] 

机构地区：[1]中国测绘科学研究院,北京100039

出　　处：《测绘科学》2003年第4期66-68,共3页Science of Surveying and Mapping

摘　　要：为了进一步改进地球重力场模型 ,美国科学院 (NRC)于 1997年提出一个报告 ,号召美国和欧洲学者们组成一个由空间探测地球重力场委员会。他们评比了大约 10个计划的或想象的卫星重力任务 ,最后提出了 5种卫星重力任务的方案 ,称为专用重力任务。本文介绍这 5种任务的内容以及地球科学将由这些任务获得重大进展的研究领域。For further improrememt of tke Earth's gravity field,U.S.National Research Council(NRC)releaseol a report in 1997 which called for a Committee on Earth gravity field from space be org anized by investigators in the United States and Europe to review satellite gravity missions in oraer that highly accurate measurements of the Earth's gravity field con be obtained to meet the need for better understanding of various processes that more mass within the Earth and above its surface. The committee suggests 5 dedicated satellite gravity missions.This paper gives a full description of these missions and fields of study that would be significantly advaned by them.

关 键 词：星载重力测量 固体地球 专用卫星重力任务 重力梯度测量 卫-卫跟踪 

分 类 号：P228[天文地球—大地测量学与测量工程]