Drought evaluation and reconstruction based on a hydrologic model and remote sensing

CORC > 地理科学与资源研究所 > 中国科学院地理科学与资源研究所 > 历年回溯文献

	Drought evaluation and reconstruction based on a hydrologic model and remote sensing
	Tang Qiuhong; Liu Hui
	2013
关键词	Drought Radiometers Remote sensing Satellite imagery Soil moisture
英文摘要	Droughts have spatial and temporal variations. Soil moisture data from the VIC (variable infiltration capacity) model and NDVI (normalized difference vegetation index) data from MODIS (Moderate Resolution Imaging Spectroradiometer) was analyzed using the SAD (severity-area-duration) method to investigate the soil moisture differences between natural droughts and agricultural droughts. The model was used to reconstruct and evaluate the 2000 to 2008 droughts in the Colorado River Basin. The results indicate that the NDVIP (normalized difference vegetation index percentile) and SMP (soil moisture percentile) models can both be used for drought reconstruction with the durations of droughts detected by NDVIP tending to be shorter than those predicted by SMP. NDVIP has better potential for detecting drought and wetness, though the predictions are limited by the life cycle of the vegetation.
出处	Qinghua Daxue Xuebao/Journal of Tsinghua University
卷	53 期:5 页:613-617
收录类别	EI
语种	英语
内容类型	EI期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/31172]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Tang Qiuhong,Liu Hui. Drought evaluation and reconstruction based on a hydrologic model and remote sensing. 2013.