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	Relating surface Albedo and vegetation index with surface dryness using Landsat ETM+ imagery
	Yao, Yunjun ; Qin, Qiming ; Zhu, Lin ; Yang, Nan
	2008
英文摘要	The objective of this paper is to analyze the albedo-NDVI spectral feature space to develope drought estimation methods using Landsat ETM+ imagery. A simple ratio and differences of surface albedo and normalized difference vegetation index (NDVI) are examined. The methods are compared against field measured soil moisture at Shunyi test site in Beijing, China. Results indicate that there are close correlations between soil moisture and both albedo-NDVI difference index (AVDI) and albedovegetation ratio index (VARI). The coefficient of determination (R2) between AVDI and 5 cm soil moisture is 0.45. The strongest correlation between the VARI versus soil moisture R2 = 0.4103. ? 2008 IEEE.; EI; 0
语种	英语
DOI标识	10.1109/IGARSS.2008.4778856
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/156250]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Yao, Yunjun,Qin, Qiming,Zhu, Lin,et al. Relating surface Albedo and vegetation index with surface dryness using Landsat ETM+ imagery. 2008-01-01.

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