Retrieval Models of Water Vapor and Wet Tropospheric Path Delay for theHY-2ACalibration Microwave Radiometer
Retrieval Models of Water Vapor and Wet Tropospheric Path Delay for theHY-2ACalibration Microwave Radiometer
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DOI：
10.1175/jtech-d-14-00005.1
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发表时间：
2014-07
影响因子：
2.2
通讯作者：
G. Zheng;Jingsong Yang;L. Ren
中科院分区：
文献类型：
--
作者：
G. Zheng;Jingsong Yang;L. Ren
摘要：本文重点研究了我国首颗海洋动力环境卫星海洋二号A（HY-2A）校准微波辐射计（CMR）的水汽（WV）和湿对流层路径延迟（PD）反演模型的开发和验证。参考数据为Jason-1微波辐射计（JMR）和Jason-2高级微波辐射计（AMR）的数据。提取HY-2A和Jason-1/2卫星轨道的交叉点，并将这些点的数据对分为拟合数据集和验证数据集。使用拟合数据集和遗传算法为 CMR 构建 WV 和 PD 检索模型，并使用验证数据集进行验证。验证表明，反演模型的结果与JMR和AMR数据一致，WV和PD的均方根差分别为1.86 kg·m−2和11.4 mm。最后，使用反演模型和AMR AMR从CMR亮温沿轨数据反演结果...
AbstractThis paper focuses on the development and validation of retrieval models of water vapor (WV) and wet tropospheric path delay (PD) for the calibration microwave radiometer (CMR) on board the first ocean dynamic environment satellite of China—Haiyang-2A (HY-2A). The reference data are those of Jason-1 microwave radiometer (JMR) and Jason-2 advanced microwave radiometer (AMR). The crossover points of the HY-2A and Jason-1/2 satellite tracks are extracted, and the data pairs at these points are divided into fitting and validation datasets. The retrieval models of WV and PD are built for the CMR using the fitting dataset and genetic algorithm, and validated using the validation dataset. The validation shows that the results of the retrieval models are consistent with the JMR and AMR data, and the root-mean-square differences of WV and PD are 1.86 kg m−2 and 11.4 mm, respectively. Finally, the retrieved results from the CMR brightness temperature along-track data using the retrieval models and the AMR a...