应用重力地质方法反演皇帝海山的海底地形  

Bathymetry Inversion with Gravity-Geologic Method in Emperor Seamount

作　　者：胡敏章[1] 李建成[1] 金涛勇[1] 

机构地区：[1]武汉大学测绘学院,武汉市珞喻路129号430079

出　　处：《武汉大学学报（信息科学版）》2012年第5期610-612,629,共4页Geomatics and Information Science of Wuhan University

基　　金：国家863计划资助项目(2009AA121402);国家自然科学基金资助项目(41074014)

摘　　要：论述了采用重力地质方法(GGM)反演海底地形的基本原理,并使用该方法计算了皇帝海山南部的海底地形模型,与现有的海深模型和船测海深数据相比,其精度略高于ETOPO2模型。与经典方法相比,GGM方法不需引入先验模型,不必考虑海底的均衡状况,模型简单,易于计算。The principle of bathymetry inversion with GGM method was discussed,the detailed calculate process was presented,and the bathymetry in south of Emperor Seamount was calculated.The accuracy of GGM bathymetry is better than ETOPO2 through the comparison with vessel depth data.Compared with classical methods,GGM method does not need to introduce a prior bathymetry model and take into account the isostasy of the seabed.The model is simple and easy to calculate.

关 键 词：海底地形 重力异常 重力地质方法 

分 类 号：P229.1[天文地球—大地测量学与测量工程] P228.3[天文地球—测绘科学与技术]