大地测量与地球动力学2011，Vol.31Issue(4)：56-59,4.
利用多种测高数据反演中国南海海域重力异常
INVERSION OF GRAVITY ANOMALIES OVER SOUTH CHINA SEA BY USE OF COMBINATION OF MULTI-SATELLITE ALTIMETER DATA
摘要
Abstract
On the basis of the high-precision global gravity model ( EGM2008 ) , combined with multi-altimeter data( Geosat/GM data,ERS-1/168 data and Envisat data) ,the gravity anomalies grided in 2' ×2' over China sea and its vicinity (0°N ~42°N,102°E ~ 138°E) are determined with the method of deflection of the vertical and inverse Vening Meinesz formula. Compared with the shipboard gravimetry over the South China sea, the results show that the standard error of the gravity anomalies computed with the altimeter data is ±9.43 × 10 -5ms-2. To remove gross error of the residual deflection of the vertical by selecting different criterias, the gravity anomalies computed with the altimeter data and shipboard gravity anomalies were compared and analyzed, the accuracy of residual deflection in the vertical range of 3" ~ 5" is better.关键词
卫星测高/垂线偏差/逆Vening-Meinesz公式/重力异常/中国南海Key words
satelliate altimetry/ deflection of the vertical/ inverse Vening Meinesz formula/ gravity anomaly/ South China sea分类
测绘与仪器引用本文复制引用
胡淑梅,文汉江,李洪超,史小雨..利用多种测高数据反演中国南海海域重力异常[J].大地测量与地球动力学,2011,31(4):56-59,4.基金项目
国家863重点项目(2009AA121402) （2009AA121402）
国家自然科学基金(40874012) （40874012）
