摘要
2011年8月16日我国成功发射了第一颗自主海洋动力环境卫星HY-2A,有效波高是其搭载的雷达高度计可获取的重要海洋动力环境参数之一。本文详细介绍了应用于HY-2A雷达高度计的有效波高信息提取业务化算法,该算法通过迭代最小二乘拟合方法提取有效波高信息。同时,基于HY-2A雷达高度计业务化运行获取的有效波高数据,分别与Jason-2卫星高度计有效波高和NDBC浮标海浪波高数据进行了比对分析。比较结果表明,HY-2A雷达高度计与Jason-2有效波高的标准偏差为-0.26m,RMS为0.58m;HY-2A高度计与NDBC浮标数据间的标准偏差为-0.22m,RMS为0.37m。结果证明了目前应用于HY-2A雷达高度计业务化运行中的有效波高信息提取算法的可行性。
The first oceanic dynamic environment satellite - HY-2A was launched in August 16 ,2011 .Significant Wave Height （SWH） is one of the important parameters which can be monitored by HY -2A satellite altimeter . The SWH operational inversion algorithm of HY -2A altimeter is detail introduced in the paper ,and the algorithm obtained SWH by least-square method .The SWH of HY -2A altimeter computered by the operational processing is compared to the results of Jason -2 and NDBC buoys .The result showed that the standard deviation is -0.26 cm and RMS is 0.58 cm between HY -2A and Jason -2 ,and the standard deviation is -0.22 cm and RMS is 0.37 m between HY -2A and NDBC buoys .The results demonstrated that the SWH inversion algorithm used in the operational processing system of HY -2A altimeter is feasible .
出处
《海洋学报》
CAS
CSCD
北大核心
2014年第3期121-126,共6页
基金
海洋公益性行业科研专项经费项目(201105032-1)
