DOI: 10.1016/j.jag.2015.04.006
Scopus记录号: 2-s2.0-84943377331
论文题名: Drought monitoring and analysis in China based on the Integrated Surface Drought Index (ISDI)
作者: Wu J ; , Zhou L ; , Mo X ; , Zhou H ; , Zhang J ; , Jia R
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2015
卷: 41 起始页码: 23
结束页码: 33
语种: 英语
英文关键词: Data mining
; Drought monitoring
; ISDI
; MODIS
; Remote sensing
Scopus关键词: data mining
; drought
; index method
; MODIS
; monitoring
; real time
; remote sensing
; spatial resolution
; China
英文摘要: Timely and accurate monitoring of the onset and evolution of drought in China are important to reduce losses from drought. The Integrated Surface Drought Index (ISDI) which originally established in mideast China shows a large potential for real-time regional drought monitoring. However, ISDI is still at the developmental stage, and the applicability of the index requires further examination especially for China with vast area, climatic conditions, complex topography, and land cover. Furthermore, ISDI model depends on the historical training data corresponding to the study area. ISDI application in China must be remodeled using the historical training data over China. In this paper, we remodeled ISDI over China based on previous work and evaluated its capability for near real-time drought monitoring. Using the Palmer Drought Severity Index (PDSI) as a dependent variable, ISDI integrates climate-based drought indices, satellite-based Vegetation Index (VI) and land surface temperature (LST) with other biophysical and elevation data to produce a 1-km regional drought condition map at 16-day intervals. Strong relationships were determined between the calculated ISDI and PDSI for spring, summer and autumn, and all of the correlation coefficients exceeded 0.8. The initial ISDI results demonstrated a good performance for monitoring droughts in southwestern China from 2009 to 2010, high temperatures and droughts in southern China in 2013, and floods in northeastern China in 2013. The higher spatial resolution and near real-time capability of ISDI can provide important inputs for drought management and mitigation in China. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79583
Appears in Collections: 气候变化事实与影响
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作者单位: Academy of Disaster Reduction and Emergency Management, MOCA/MOE, Beijing Normal University, Beijing, China; China National Environmental Monitoring Center, Beijing, China; Department of Geographical Sciences, University of Maryland, College Park, MD, United States; Beijing Community Service Center for Science and Technology, Beijing, China
Recommended Citation:
Wu J,, Zhou L,, Mo X,et al. Drought monitoring and analysis in China based on the Integrated Surface Drought Index (ISDI)[J]. International Journal of Applied Earth Observation and Geoinformation,2015-01-01,41