联合多种测高数据确定中国海及其邻域1.5′×1.5′重力异常

基金项目: 中国科学院知识创新工程重要方向资助项目(kzcx2-yw-125)；国家自然科学基金资助项目(40704005,40674013)；国家863计划资助项目(2006AA09Z153)

详细信息

Gravity Anomalies with Resolution of 1.5′×1.5′Over China Sea and Its Vicinity Derived from Multi-Satellite Altimeter

¹Institute of Geodesy and Geophysics,Chinese Academy of Sciences,340 Xudong Street,Wuhan 430077,China;²School of Graduate,Chinese Academy of Sciences,A19 Yuquan Road,Shijingshan District,Beijing 100039,China

Funds: 中国科学院知识创新工程重要方向资助项目(kzcx2-yw-125)；国家自然科学基金资助项目(40704005,40674013)；国家863计划资助项目(2006AA09Z153)

摘要: 联合多种测高资料和Geosat/GM波形重构数据,基于EIGEN_CG01C重力场模型,采用沿轨迹加权最小二乘方法和逆Vening-Meinesz公式,确定了中国海及其邻域1.5′×1.5′重力异常。将计算结果与最新船测资料进行了比较,标准差为3.37×10-5m.s-2。
- 卫星测高 /
- 沿轨迹 /
- 加权最小二乘 /
- 重力异常
Abstract: On the basis of gravity field model(EIGEN_CG01C),together with multi-altimeter data,the improved gravity anomalies gridded in 1.5′×1.5′ in China sea and vicinity are determined using the weighted method of along-track least squares and inverse Vening-Meinesz formula.Compared with the shipboard gravimetry in South China Sea;the results show that the accuracy of the gravity anomalies computed with the altimeter data is 3.37×10-5 m·s-2.
- altimetry /
- along-track /
- weighted least-squares /
- gravity anomaly