用卫星测高和船测重力资料联合反演海洋重力异常  

INVERSION OF MARINE GRAVITY ANOMALIES BY COMBINATING MULTI-ALTIMETER DATA AND SHIPBORNE GRAVIMETRIC DATA

作　　者：王虎彪[1] 王勇[1] 陆洋[1] 詹金刚[1] 

机构地区：[1]中国科学院测量与地球物理研究所

出　　处：《大地测量与地球动力学》2005年第1期81-85,共5页Journal of Geodesy and Geodynamics

基　　金：国家自然科学基金项目(40474030)

摘　　要：基于多颗卫星最新测高资料联合解算的全球平均海平面和中国近海船测重力异常数据,采用3种方法 (Stokes公式逆运算法、垂线偏差法、最小二乘配置法)分别计算了中国近海及其邻域(0°～40°N,105°～145°E)2′× 2′重力异常,重点对3种方法的优缺点及其计算结果进行了比较和分析。结果表明,在海底地形起伏较为强烈的南 海盆地,与船测重力异常比较,最小二乘配置法(LSC)计算精度较高,达到11.2×10-5ms-2。On the basis of global mean sea surface calculated by the multi-altimeter data,together with the shipbrone gravimetric data,the gravity anomalies gridded in 2′×2′ size in China sea and vicinity were determined by the three methods(inverse Stokes formula;inverse Vening-Meinesz formula; least square collocation ),and specially, the results calculated by the three methods are compared and analyzed. It shows that the accuracy resulted by LSC which is 11.2×10+{-5}ms++{-2},is better than that measured by marine gravimeter in the South China Sea Basin.

关 键 词：重力异常 重力资料 最小二乘配置 卫星测高 联合反演 中国近海 海盆 算法 邻域 解算 

分 类 号：P631[天文地球—地质矿产勘探] P207[天文地球—地质学]