A New FAPAR Analytical Model Based on the Law of Energy Conservation: A   Case Study in China

doi:10.1109/JSTARS.2014.2325673

CORC > 北京大学 > 地球与空间科学学院

	A New FAPAR Analytical Model Based on the Law of Energy Conservation: A Case Study in China
	Fan, Wenjie ; Liu, Yuan ; Xu, Xiru ; Chen, Gaoxing ; Zhang, Beitong
刊名	ieee journal of selected topics in applied earth observations and remote sensing
	2014
关键词	Clumping index FAPAR-P model fraction of absorbed photosynthetically active radiation (FAPAR) recollision probability (p) LEAF-AREA INDEX PHOTOSYNTHETICALLY ACTIVE RADIATION GLOBAL VEGETATION INDEX WATER-VAPOR EXCHANGE CARBON-DIOXIDE CANOPY CONDUCTANCE AVAILABLE ENERGY 2-LEAF MODEL MODIS LAI FOREST
DOI	10.1109/JSTARS.2014.2325673
英文摘要	The fraction of absorbed photosynthetically active radiation (FAPAR) characterizes the energy-absorption ability of the vegetation canopy. It is a critical input to many land-surface models such as crop growth models, net primary productivity models, and climate models. There is a great need for FAPAR products derived from remote-sensing data. The objective of this research is to develop a new instantaneous quantitative FAPAR model based on the law of energy conservation and the concept of recollision probability (p). Using the ray-tracing method, the FAPAR-P model separates direct energy absorption by the canopy from energy absorption caused by multiple scattering between the soil and the canopy. Direct sunlight and diffuse skylight are also considered. This model has a clear physical meaning and can be applied to continuous and discrete vegetation. The model was validated by Monte Carlo (MC) simulation and field measurements in the Heihe River basin, China, which proved its reliability for FAPAR calculations.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000344992200025&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Engineering, Electrical & Electronic; Geography, Physical; Remote Sensing; Imaging Science & Photographic Technology; SCI(E); EI; 7; ARTICLE; fanwj@pku.edu.cn; 2008.liuyuan.2008@163.com; xrxurs@126.com; gaoxingchen@gmail.com; noelzhang@pku.edu.cn; 9,SI; 3945-3955; 7
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/155395]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Fan, Wenjie,Liu, Yuan,Xu, Xiru,et al. A New FAPAR Analytical Model Based on the Law of Energy Conservation: A Case Study in China[J]. ieee journal of selected topics in applied earth observations and remote sensing,2014.
APA	Fan, Wenjie,Liu, Yuan,Xu, Xiru,Chen, Gaoxing,&Zhang, Beitong.(2014).A New FAPAR Analytical Model Based on the Law of Energy Conservation: A Case Study in China.ieee journal of selected topics in applied earth observations and remote sensing.
MLA	Fan, Wenjie,et al."A New FAPAR Analytical Model Based on the Law of Energy Conservation: A Case Study in China".ieee journal of selected topics in applied earth observations and remote sensing (2014).