卫星测高定标场选址中有效波高因素分析

利用Jason-3卫星在国外4个主要卫星高度计定标场所在海域的测量数据,分析了这些海域的有效波高变化特性。在我国大陆沿岸选取了Jason-3卫星经过的12个海域,分析了它们的有效波高变化特性,给出了在我国大陆沿岸建设卫星测高定标场的选址建议。Bass、Corsica、Gavdos等3个定标场海域的平均有效波高约为1.1 m,说明平均有效波高1.1 m及以下的海域适用于建设定标场。选定的12个沿岸海域中,渤海及黄海海域平均有效波高小于0.8 m,显著小于东海及南海1.3～1.5 m平均有效波高,单独从有效波高的角度渤海及黄海海域更适合于建设卫星高度计定标场。

Influence Analysis of Significant Wave Height in Satellite Altimeter Calibration Site Selection

Utilizing Jason-3 satellite data measured at the sea areas of the four main satellite altimetry calibration site,the characteristics of significant wave height (SWH) of these areas is analyzed.Twelve offshore areas which Jason-3 passes by are chosen around our mainland,the SWH characteristics of these areas is analyzed,and then the proposal of satellite altimeter calibration site selection round our mainland is given.The mean SWH of area of Bass,Corsica and Gavdos calibration sites is around 1.1 m,which indicates that the area with SWH of 1.1 m or beneath is suitable for constructing calibration site.Among the selected 12 offshore areas,the mean SWH of Bohai Sea and Yellow Sea is less than 0.8 m,which is much smaller than the mean SWH of East China Sea and South China Sea.From the view of SWH solely,Bohai Sea and Yellow Sea are more suitable for constructing satellite altimeter calibration site.