利用卫星测高数据反演中国海及邻近海域海底地形  

RESEARCH ON INVERSION OF SEAFLOOR TOPOGRAPHY OF CHINA SEA AND ITS ADJACENT AREAS FROM SATELLITE ALTIMETRIC DATA

作　　者：李大炜[1] 李建成[1] 丰海[1] 蒋涛[1] 

机构地区：[1]武汉大学测绘学院,武汉430079

出　　处：《大地测量与地球动力学》2009年第4期70-73,共4页Journal of Geodesy and Geodynamics

基　　金：国家863计划(2007AA12Z346);国家自然科学基金(40804003)

摘　　要：基于重力异常与海底地形之间存在近似的线性关系,利用卫星测高数据所得到的中国海及邻近海域的海洋重力异常资料和ETOPO2v2全球数字高程模型,反演了中国海及邻近海域2′×2′的海底地形,并与ETOPO2v2模型以及船测海深进行比较,验证了计算结果的可靠性和有效性。On the basis of linear relation between gravity anomaly and seafloor topography, the 2＇× 2＇ bathymetry model in China sea and its adjacent areas would be calculated from the satellite altimeter-derived gravity anomalies and with ETOPO2v2 model. On the other hand, the calculated result is compared with the ETOPO2v2 model and shipboard depth, and then the following conclusion can be drawn that the bathymetry model calculated by gravity anomaly can reflect the characters of suboceanic structure exactly in China sea and adjacent Areas.

关 键 词：卫星测高:重力异常:海底地形:ETOPO2v2:数据反演 

分 类 号：P229.1[天文地球—大地测量学与测量工程] P738[天文地球—测绘科学与技术]