Estimation of global leaf area index and absorbed par using radiative transfer models

被引：786

作者：

Myneni, RB ^{[1
]}

Nemani, RR ^{[1
]}

Running, SW ^{[1
]}

机构：

[1] UNIV MONTANA,SCH FORESTRY,MISSOULA,MT 59812

来源：

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 1997年 / 35卷 / 06期

基金：

美国国家航空航天局;

关键词：

EOS; FPAR; LAI; MISR; MODIS; radiative transfer; remote sensing;

D O I：

10.1109/36.649788

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

A simple method for the estimation of global leaf area index (LAI) and fraction of photosynthetically active radiation absorbed by the vegetation (FAPAR) from atmospherically corrected Normalized Difference Vegetation Index (NDVI) observations is described. Recent improvements to our three dimensional radiative transfer model of a vegetated surface are described. Example simulation results and a validation exercise are discussed, The model was utilized to derive land cover specific NDVI-LAI and NDVI-FAPAR relations. The method therefore requires stratification of global vegetation into cover types that are compatible with the radiative transfer model. Such a classification based on vegetation structure is proposed and a simple method for its derivation is presented, Proof-of-concept results are given to illustrate the feasibility of the proposed method.

引用

页码：1380 / 1393

页数：14

共 41 条

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