Characterization and intercomparison of global moderate resolution leaf area index (LAI) products: Analysis of climatologies and theoretical uncertainties

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 > 研究生部

	Characterization and intercomparison of global moderate resolution leaf area index (LAI) products: Analysis of climatologies and theoretical uncertainties
	Fang, HL ; Jiang, ChongYa(江冲亚) ; Li, WJ ; Wei, SS ; Baret, F ; Chen, JM ; Garcia-Haro, J ; Liang, SL ; Liu, RG ; Myneni, RB ; Pinty, B ; Xiao, ZQ ; Zhu, ZC
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
	2013
卷号	118 期号:2 页码:529-548
关键词	leaf area index (LAI) climatology theoretical uncertainty relative uncertainty intercomparison MODIS
通讯作者	Fang, HL
英文摘要	Leaf area index (LAI) is a critical variable for land surface and climate modeling studies. Several global LAI products exist, and it is important to know how these products perform and what their uncertainties are. Five major global LAI productsMODIS, GEOV1, GLASS, GLOBMAP, and JRC-TIPwere compared between 2003 and 2010 at a 0.01 degrees spatial resolution and with a monthly time step. The daily Land-SAF product was used as a regional reference in order to evaluate the performance of other global products in Africa. Cross-sensor LAI conversion equations were derived for different biome types. Product uncertainties were assessed by looking into the product quantitative quality indicators (QQIs) attached to MODIS, GEOV1, and JRC-TIP. MODIS, GEOV1, GLASS, and GLOBMAP are generally consistent and show strong linear relationships between the products (R-2>0.74), with typical deviations of<0.5 for nonforest and<1.0 for forest biomes. JRC-TIP, the only effective LAI product, is about half the values of the other LAI products. The average uncertainties and relative uncertainties are in the following order: MODIS (0.17, 11.5%)
收录类别	SCI
资助信息	Hundred Talent Program of the Chinese Academy of Sciences;National Natural Science Foundation of China 41171333;State Program for High-Tech Research and Development 2009AA122100;National Basic Research Program of China (973 Program) 2007CB714407;National Basic Research Program of China 2010CB950701
语种	英语
公开日期	2013-11-11
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/27979]
专题	地理科学与资源研究所_研究生部
推荐引用方式 GB/T 7714	Fang, HL,Jiang, ChongYa,Li, WJ,et al. Characterization and intercomparison of global moderate resolution leaf area index (LAI) products: Analysis of climatologies and theoretical uncertainties[J]. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,2013,118(2):529-548.
APA	Fang, HL.,Jiang, ChongYa.,Li, WJ.,Wei, SS.,Baret, F.,...&Zhu, ZC.(2013).Characterization and intercomparison of global moderate resolution leaf area index (LAI) products: Analysis of climatologies and theoretical uncertainties.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,118(2),529-548.
MLA	Fang, HL,et al."Characterization and intercomparison of global moderate resolution leaf area index (LAI) products: Analysis of climatologies and theoretical uncertainties".JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 118.2(2013):529-548.