Atmospheric and angular effects on NDVI temporal profiles derived from ADEOS-POLDER data over India

Author

Sridhar, V.N. ; Ghosh, Ranendu ; Mahtab, Anjum

Author_Institution

Remote Sensing Appl., Area Space Appl. Centre, Ahmedabad, India

Volume

39

Issue

5

fYear

2001

fDate

5/1/2001 12:00:00 AM

Firstpage

1099

Lastpage

1102

Abstract

The variations of NDVI for crops, semi-evergreen forest, dry deciduous forest, and sand have been analyzed as a function of date of acquisition at 670 and 865 am using ADEOS-Polarization and Directionality of Earth Resources (POLDER) data acquired over India. After correcting the data for atmospheric effects, a semi-empirical bidirectional reflectance distribution function (BRDF) model has been fitted to the data to extract angularly normalized target reflectances. It is shown that atmospheric corrections and angular normalization are important in the quantitative analysis of NDVI and its temporal variations

Keywords

vegetation mapping; ADEOS-POLDER data; BRDF model; India; NDVI temporal profiles; POLDER data; Polarization and Directionality of Earth Resources data; angular effects; angular normalization; angularly normalized target reflectances; atmospheric corrections; atmospheric effects; crops; dry deciduous fores; sand; semi-empirical bidirectional reflectance distribution function; semi-evergreen forest; Atmospheric modeling; Data mining; Distribution functions; Earth; Pixel; Polarization; Reflectivity; Satellites; Soil; Sun;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/36.921428

Filename

921428