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	A layered energy-separating algorithm of net radiation in the operational two-layer model
	Tian J.
	2005
关键词	layered energy-separating algorithm Bowen Ratio a two-layer model regional-distribution flux soil
页码	3036-3039
英文摘要	In many two-layer models, Beer's Law was adopted to separate net radiation of mixed pixel. However in many cases, the difference of albedo and surface temperature between vegetation and soil is often very large. Soil's temperature can be m ore than 10 degrees C than vegetation's. Therefore, the error is large for the separation of net radiation using Beer's Law. Net radiation is composed of short wave net radiation in visible and near-infrared band and long wave net radiation in thermal-infrared band. Therefore, in order to achieve it, besides the separation of radiometric temperature of mixed pixel, albedo of mixed pixel must be separated. Theoretical basis of the layered energy-separating algorithm of net radiation was analyzed. Instantaneous soil evaporation and transpiration and carbon dioxide assimilation flux of vegetation in North China were retrieved based on MODIS data and simultaneous measurements of Dongping Lake. The obtained results showed that the layered energy-separating algorithm of net radiation is reasonable and feasible. In addition, uncertainty of the algorithm was discussed.
收录类别	CPCI
会议录出版者	Ieee
语种	英语
ISBN号	0-7803-9050-4
内容类型	会议论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/25391]
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	Tian J.. A layered energy-separating algorithm of net radiation in the operational two-layer model[C]. 见:.

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