Uncertainty analysis for NDVI using the physical models

Author

Juanjuan, Jing ; Liangyun, Liu ; Jihua, Wang ; Jindi, Wang ; Chunjiang, Zhao

Author_Institution

National Eng. Res. Center for Inf. Technol. in Agric., Beijing, China

Volume

6

fYear

2004

fDate

20-24 Sept. 2004

Firstpage

4321

Abstract

NDVI is the most widely applied vegetation index, it can indicate the information of growth status, LAI, et al. However, NDVI is also affected by the atmosphere conditions, soil background, view conditions and so on. In this paper, we analyses the effects of chlorophyll, surface soil moisture, the ratio of sky light, view zenith and Sun zenith on NDVI under different LAI using the leaf radiative transfer model PROSPECT and canopy reflectance model SAIL, and find the sensitive factors and ranges.

Keywords

atmospheric boundary layer; geophysical signal processing; radiative transfer; soil; vegetation mapping; LAI; NDVI; PROSPECT model; SAIL model; atmosphere conditions; canopy reflectance model; chlorophyll; growth status; leaf radiative transfer model; physical models; sensitive factors; sky light ratio; soil background; sun zenith; surface soil moisture; uncertainty analysis; vegetation index; view zenith; Atmosphere; Atmospheric modeling; Azimuth; Optical sensors; Reflectivity; Remote sensing; Soil; Sun; Uncertainty; Vegetation;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004 IEEE International

Print_ISBN

0-7803-8742-2

Type

conf

DOI

10.1109/IGARSS.2004.1370093

Filename

1370093