A drought monitoring operational system for China using satellite data: design and evaluation

	A drought monitoring operational system for China using satellite data: design and evaluation
	Yan, Nana 1; Wu, Bingfang 1; Boken, Vijendra K.1; Chang, Sheng 1; Yang, Leidong 1
刊名	Geomatics, Natural Hazards and Risk
	2016
卷号	7 期号:1 页码:264-277
关键词	LEVEL SET EVOLUTION HIGH-RESOLUTION SAR IMAGE SEGMENTATION BEILUHE BASIN PERMAFROST RADAR MODEL COASTLINE CLASSIFICATION EXTRACTION
通讯作者	Wu, Bingfang (wubf@irsa.ac.cn)
英文摘要	Droughts occur frequently in China and their real-time monitoring and timely reporting are required for prevention and mitigation. This paper presents a method for developing an operational drought monitoring system for China. The method is based on various components such as Moderate Resolution Imaging Spectroradiometer data access, data processing, indices calculations, drought monitoring and analysis, and information dissemination. The system was tested by monitoring drought conditions in the early spring of 2009 in the Hai Basin of China. Results were compared with the in situ data-based indices. It was found that the system was capable of monitoring spatial variation in vegetation conditions attributed to droughts. The traditional meteorological drought index and yield data were collected to evaluate the system performance. A stronger relationship was found between the vegetation health index and the three-month standard precipitation index for the rainfed cropped areas. The relationship between the drought-area percentage and the winter wheat yield reduction percentage for 16 counties was stronger for the April–May period than for the February–March period. The drought monitoring system could explain about 60% of the variance in the winter wheat yields. © 2014 Taylor & Francis.
学科主题	Geology; Meteorology & Atmospheric Sciences; Water Resources
类目[WOS]	Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:20143600031628
内容类型	期刊论文
源URL	[http://ir.radi.ac.cn/handle/183411/39287]
专题	遥感与数字地球研究所_SCI/EI期刊论文_期刊论文
作者单位	1. Key Laboratory of Digital Earth Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, China 2. Department of Geography and Earth Science, University of Nebraska at Kearney, Kearney 3.NE, United States
推荐引用方式 GB/T 7714	Yan, Nana,Wu, Bingfang,Boken, Vijendra K.,et al. A drought monitoring operational system for China using satellite data: design and evaluation[J]. Geomatics, Natural Hazards and Risk,2016,7(1):264-277.
APA	Yan, Nana,Wu, Bingfang,Boken, Vijendra K.,Chang, Sheng,&Yang, Leidong.(2016).A drought monitoring operational system for China using satellite data: design and evaluation.Geomatics, Natural Hazards and Risk,7(1),264-277.
MLA	Yan, Nana,et al."A drought monitoring operational system for China using satellite data: design and evaluation".Geomatics, Natural Hazards and Risk 7.1(2016):264-277.