时空窗口对HY-2有效波高产品检验影响模拟研究  

Simulative Research on the Effect of Space and Time Windows on the Validation of HY-2 Significant Wave Height Products

作　　者：陈春涛[1] 李军[1] 朱建华[1] 赵屹立[1] 翟万林[1] 王贺[1] 

机构地区：[1]国家海洋技术中心,天津300112

出　　处：《海洋技术学报》2015年第5期31-36,共6页Journal of Ocean Technology

基　　金：国家海洋局青年海洋科学基金资助项目(2013431);海洋公益性行业科研专项"HY-2卫星海洋环境同化预报产品验证技术研究与示范"(201305032-3);中科院合作项目"海洋高度计定标方法研究"

摘　　要：时空窗口的选择是卫星高度计有效波高产品检验的主要影响因素。采用Monte Carlo(MC)数学模拟的方法 ,研究了时空窗口对HY-2高度计有效波高检验的影响,并采用现场浮标测量数据验证了MC模拟的可靠性。MC模拟结果表明,采用浮标测量数据对HY-2高度计有效波高检验时,必须分海况选取对应的最优空间窗口进行,并给出不同海况下的最优的时空窗口。对于高海况需采用小的空间窗口,在1 m,2 m,3 m,4 m有效波高的海况下,其理想的时空窗口为0 min,117 km,30 km,18 km和13 km。The selection of space and time windows plays a key role in the validation of significant wave height（SWH） for satellite altimeters. In this study, the method of Monte Carlo（MC） simulation has been used to analyze the eftects of the size of space and time windows on the HY-2 altimeter /buoy SWH comparisons, and the in-situ /SWH measuring data are used to validate the reliability of MC simulated results which show that different sizes of space and time windows for HY-2/buoy companion are needed under various sea conditiens when validating HY-2 SWH using measured data. The higher sea state requires smaller space and time windows. In the case of different SWH for 1 m, 2m, 3m, 4m, the ideal time window is 0 min, with the space windows of 117 km, 30 km,8 km and 13 km.

关 键 词：HY-2卫星 卫星高度计 有效波高 检验 MONTE CARLO模拟 

分 类 号：P715.6[天文地球—海洋科学]