气候变化领域集成服务门户(CCPortal): Estimating Leaf Area Index by Fusing MODIS and MISR Data

CCPortal

DOI	10.3964/j.issn.1000-0593(2009)11-3106-06
	Estimating Leaf Area Index by Fusing MODIS and MISR Data
	Wan Hua-wei; Wang Jin-di; Liang Shun-lin; Qin Jun
通讯作者	Wang, JD (通讯作者)
发表日期	2009
ISSN	1000-0593
起始页码	3106
结束页码	3111
卷号	29 期号:11
英文摘要	Moderate-resolution imaging spectrometer (MODIS) and multi-angle imaging spectroradiometer (MISR) are two important sensors on TERRA satellite. The authors can have more spectral and multi-angular observations on the land surface objects by combining these two datasets. In the present paper, both MODIS and MISR observations were combined to estimate leaf area index (LAI) of land surface. The adjoining model and trust-region optimal algorithm were introduced into the framework of physical model inversion to speed up the running of the model inversion algorithm. And the algorithm allows the prior knowledge on the retrieved parameters to be input into the inversion procedure. The uncertainty and sensitivity matrix (USM) based analysis is helpful for selecting the observed data subset with more information and less noise to retrieve LAI. The measured LAI in situ and estimated LAI from ETM data were scaling-up to MODIS/MISR LAI product scale, and were taken as the ground truth to evaluate the new approach. The result suggests that combining two sensors datasets can improve the accuracy of LAI estimation, and the developed inversion method in this paper can be applied to the large area remote sensed image data effectively.
关键词	INVERSION PRODUCTS
英文关键词	Leaf area index; Data fusion; Model inversion; Adjoining equation
语种	英语
WOS研究方向	Spectroscopy
WOS类目	Spectroscopy
WOS记录号	WOS:000271875400053
来源期刊	SPECTROSCOPY AND SPECTRAL ANALYSIS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257697
推荐引用方式 GB/T 7714	Wan Hua-wei,Wang Jin-di,Liang Shun-lin,et al. Estimating Leaf Area Index by Fusing MODIS and MISR Data[J]. 中国科学院青藏高原研究所,2009,29(11).
APA	Wan Hua-wei,Wang Jin-di,Liang Shun-lin,&Qin Jun.(2009).Estimating Leaf Area Index by Fusing MODIS and MISR Data.SPECTROSCOPY AND SPECTRAL ANALYSIS,29(11).
MLA	Wan Hua-wei,et al."Estimating Leaf Area Index by Fusing MODIS and MISR Data".SPECTROSCOPY AND SPECTRAL ANALYSIS 29.11(2009).