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EFFECTS OF A CLOUD FILTERING METHOD FOR FENGYUN-3C MICROWAVE HUMIDITY AND TEMPERATURE SOUNDER MEASUREMENTS OVER OCEAN ON RETRIEVALS OF TEMPERATURE AND HUMIDITY
He Qiu-rui; Wang Zhen-zhan; He Jie-ying
作者部门微波遥感部
发表期刊JOURNAL OF TROPICAL METEOROLOGY
2018
卷号24期号:1页码:29-41
DOI10.16555/j.1006-8775.2018.01.003
ISSN1006-8775
语种英语
关键词FY-3C/MWHTS cloud filtering method multiple linear regression artificial neural networks one-dimensional variational retrieval
摘要For Microwave Humidity and Temperature sounder (MWHTS) measurements over the ocean, a cloud filtering method is presented to filter out cloud- and precipitation-affected observations by analyzing the sensitivity of the simulated brightness temperatures of MWHTS to cloud liquid water, and using the root mean square error (RMSE) between observation and simulation in clear sky as a reference standard. The atmospheric temperature and humidity profiles are retrieved using MWHTS measurements with and without filtering by multiple linear regression (MLR), artificial neural networks (ANN) and one-dimensional variational (1DVAR) retrieval methods, respectively, and the effects of the filtering method on the retrieval accuracies are analyzed. The numerical results show that the filtering method can improve the retrieval accuracies of the MLR and the 1DVAR retrieval methods, but have little influence on that of the ANN. In addition, the dependencies of the retrieval methods upon the testing samples of brightness temperature are studied, and the results show that the 1DVAR retrieval method has great stability due to that the testing samples have great impact on the retrieval accuracies of the MLR and the ANN, but have little impact on that of the 1DVAR.
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文献类型期刊论文
条目标识符http://ir.nssc.ac.cn/handle/122/6542
专题微波遥感部
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He Qiu-rui,Wang Zhen-zhan,He Jie-ying. EFFECTS OF A CLOUD FILTERING METHOD FOR FENGYUN-3C MICROWAVE HUMIDITY AND TEMPERATURE SOUNDER MEASUREMENTS OVER OCEAN ON RETRIEVALS OF TEMPERATURE AND HUMIDITY[J]. JOURNAL OF TROPICAL METEOROLOGY,2018,24(1):29-41.
APA He Qiu-rui,Wang Zhen-zhan,&He Jie-ying.(2018).EFFECTS OF A CLOUD FILTERING METHOD FOR FENGYUN-3C MICROWAVE HUMIDITY AND TEMPERATURE SOUNDER MEASUREMENTS OVER OCEAN ON RETRIEVALS OF TEMPERATURE AND HUMIDITY.JOURNAL OF TROPICAL METEOROLOGY,24(1),29-41.
MLA He Qiu-rui,et al."EFFECTS OF A CLOUD FILTERING METHOD FOR FENGYUN-3C MICROWAVE HUMIDITY AND TEMPERATURE SOUNDER MEASUREMENTS OVER OCEAN ON RETRIEVALS OF TEMPERATURE AND HUMIDITY".JOURNAL OF TROPICAL METEOROLOGY 24.1(2018):29-41.
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