利用卫星测高资料反演海底地形研究

基金项目: 国家海洋126项目(HY126-01-11-03)

详细信息

The Recovery of Bathymetry from Altimeter Data

Tianjin Institute of Hydrographic Surveying and Charting, 40 Youyi Road, Tianjin, China, 300061

摘要: 论述了利用卫星测高数据反演海底地形的解析算法和统计算法的基本原理和数学模型,在此基础上,基于最小二乘配置理论,提出了统计算法的改进模型。使用新模型在南中国海地区进行了海底地形反演计算,并将反演结果与实际船测水深进行比对,进一步验证改进模型的可靠性和有效性。
- 卫星测高 /
- 海洋深度 /
- 最小二乘配置
Abstract: At present,there exist two types of method used to recover the bathymetry from altimeter data,i.e.the deterministic methods and the statistical method.In this paper,the principles of the two method are introduced first.Then on the basis of the theory of least-square collocation,a modified statistical model for recovering bathymetry from altimeter data is proposed.The new model is used to compute the ocean depth in the South China Sea from altimeter-derived gravity anomalies.And finally the predicted depths are compared to the ship-borne depth.
- altimetry /
- bathymetry /
- least-square collocation