INVERTIBILITY OF A 1-D DISCRETE ORDINATES CANOPY REFLECTANCE MODEL

被引：60

作者：

PRIVETTE, JL ^{[1
]}

MYNENI, RB ^{[1
]}

TUCKER, CJ ^{[1
]}

EMERY, WJ ^{[1
]}

机构：

[1] NASA,GODDARD SPACE FLIGHT CTR,BIOSPHER SCI BRANCH,GREENBELT,MD 20771

来源：

REMOTE SENSING OF ENVIRONMENT | 1994年 / 48卷 / 01期

关键词：

D O I：

10.1016/0034-4257(94)90117-1

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The invertibility of an accurate discrete ordinates canopy reflectance model is investigated through a series of experiments. Effects of different canopy types, noise levels, spectral ranges, and sampling geometries [including the NOAA Advanced Very High Resolution Radiometer (AVHRR) and the proposed Multi-angle Imaging SpectroRadiometer (MISR) satellite sampling schemes] are considered. Both error-free synthetic bidirectional reflectance data and empirical field reflectance data are utilized. Results suggest that the model can retrieve soil and canopy parameters with reasonable accuracy in most cases, and surface state parameters (absorbed radiation, spectral albedo and photosynthetic efficiency) with high accuracy in all cases. The efficiency of several commonly used optimization algorithms is also assessed, and a model sensitivity study is conducted.

引用

页码：89 / 105

页数：17

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