WIND FIELD RETRIEVING UNDER RAINY CONDITIONS BASED ON SUPPORT VECTOR MACHINE FOR COMBINED ACTIVE/PASSIVE OBSERVATIONS OF HY-2A

	WIND FIELD RETRIEVING UNDER RAINY CONDITIONS BASED ON SUPPORT VECTOR MACHINE FOR COMBINED ACTIVE/PASSIVE OBSERVATIONS OF HY-2A
	Xu, Xingou; Dong, Xiaolong
	2018
会议日期	JUL 22-27, 2018
会议地点	Valencia, SPAIN
关键词	wind field support vector machine kernel function scatterometer radiometer HY-2A
页码	1501-1503
英文摘要	Wind fields over ocean surface can be effectively retrieved by scatterometer measurements with GMFs (geophysical model functions) relating them and observing geometry with wind speeds. However, existed GMFs are not suitable for rainy conditions which require extra information for rain induced factors in observations that vary with rain conditions. The combined observations of scatterometer and radiometer are suitable for the problem. In this paper, this was realized by the method based on SVM (support vector machine) with kernel function established in this paper considering the form of existed GMFs. Experiments had been conducted over HY-2A scatterometer (HSCAT) and radiometer (HRAD) who give observations at almost the same time and operation frequencies suitable for this problem. The training progress was achieved by taken Windsat wind fields as true values. The method had been verified by comparison made between the wind fields retrieved with that of Buoy data. Discussion were made for further researches exploring the underlying physical progress of the SVM established.
会议录	IGARSS 2018 - 2018 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
语种	英语
ISSN号	2153-6996
ISBN号	978-1-5386-7150-4
内容类型	会议论文
源URL	[http://ir.nssc.ac.cn/handle/122/6708]
专题	国家空间科学中心_微波遥感部
推荐引用方式 GB/T 7714	Xu, Xingou,Dong, Xiaolong. WIND FIELD RETRIEVING UNDER RAINY CONDITIONS BASED ON SUPPORT VECTOR MACHINE FOR COMBINED ACTIVE/PASSIVE OBSERVATIONS OF HY-2A[C]. 见:. Valencia, SPAIN. JUL 22-27, 2018.