15年测高资料反演南海北部潮汐结果的分析

在调和分析的基础上，结合差比关系的运用，利用T／P和Jason-1卫星测高数据进行了南海北部潮汐状况的反演、分析。其中沿轨数据和交点数据的海面异常（SLA）样本标准差（STD）值计算表明，对于15年资料而言，潮汐分析结果已基本一致。对3年轨道改变后的T／P资料分析发现，运用差比分析的办法能使其分析精度有20％左右的提高，达到与15年资料相近的分析效果。最后文章将近岸的反演结果与实测值作了对比，得出在大多数地区（除水动力复杂区域外），沿轨数据的反演水位与实测值的误差均值小于19cm，STD值小于14cm。

The Analysis of Tide Inversion Results from Fifteen Years AltimetryData in Northern South China Sea

On the basis of harmonic analysis and difference-ratio relation method,we use T/P and Jason-1 data to inverse the northern South China Sea tidal condition in this paper.The sample standard deviation results of the sea level anomaly showed that,for 15 years data,the along track and crossover point results have been basically the same.For T/P 3 years track changed data,the difference-ratio relation method can make the analysis precision about 20% increase,reach the similar effect of 15 years data.Finally we compare the inshore inversion results with the measured values,in most regions(except hydrodynamic complex regions),the average error less than 19 cm,STD value less than 14 cm.