用T/P测高数据确定中国海域及其邻海的海面高及海面地形

Determination of the Sea Level Height and Sea Surface Topography in the China Sea and Neighbour by T/P Altimeter Data

摘要: 描述了利用T/P卫星测高数据确定中国海域及其邻海的海面地形。处理了T/P 59~82周(Cycle)1994年第83d~311d的数据,将59~82周数据分成两部分分别估计海面高,并分析了海面高变化。结果与Basic和Rapp1992年确定的海面高作了比较。利用Shepard曲面拟合方法给出了30'×30'平均海面高结果,分别以OSU91和WDM94地球重力场模型作为参考重力场,计算了相应的30'×30'平均海面地形。

Abstract: This paper deals with the determination of the sea level height and sea surface topography in the china sea and neighbour by TOPOX/POSEIDON(T/P) satellite altimeter data.The data of T/P 59~82'cycles covering 83^th~311^th days in 1994 are processed.The data of 59~82 cycles are divided into two parts,which have respectively been used to estimate the sea level height and to analyze the sea level changes.The obtained results are compared with the sea level heights estimated by Basic and Rapp in 1992 Using the combined solutions of Geos-3,Seasat,Geosat,and ETOPO5U bathymeter data.Results of the 30'×30' mean sea level heights are obtained by the Shepard curve fitting method.Taking respectively the OSU 91 and the WDM 94 earth gravity field models as the reference gravith field,the 30'×30' mean sea surface topography is computed.