中国海洋大学学报(自然科学版)2017,Vol.47Issue(6):87-94,8.DOI:10.16441/j.cnki.hdxb.20150411
卫星测高反演重力场在西太平洋海域的应用
Application of Gravity Inversion From Satellite Altimeter Data in the West Pacific
摘要
Abstract
The application of gravity anomaly inversion from high quality satellite altimeter data is an important method to acquire marine gravity.The main characteristics of newly available satellite altimeter data since 2008 are reviewed in this paper.On the basis of multi-satellite data, we apply crossover adjustment and use central difference method to calculate deflection of the vertical instead of conventional Sandwell method.After that, improved inverse Vening-Meinesz method and numerical inverse-Stokes approach are adopted to calculate the gravity filed of certain area in the West Pacific.Comparision with the shipboard-based gravity provided by NGDC shows that inverse Vening-Meinesz method has smaller errors than numerical inverse-Stokes approach.With further numerical expericment ofadding stochastic noise, we show that inverse Vening-Meinesz method is more robust so that it can provide reliable gravity estimation for the target area.关键词
测高卫星/海洋重力/逆Vening-Meinesz/垂线偏差Key words
Satellinte altimeter/marine gravity/inverse Vening-Meinesz/deflection of the vertical分类
天文与地球科学引用本文复制引用
孙杨,姜效典,王燚,李朝阳..卫星测高反演重力场在西太平洋海域的应用[J].中国海洋大学学报(自然科学版),2017,47(6):87-94,8.基金项目
海洋公益性行业科研专项(201305029-02)资助 Supported by the Public Science and Technology Research Funds Projects of Ocean (201305029-02) (201305029-02)