Title
Assesment Of The Correlation Between Reflectance Anisotropy And Ndvi Using Modis Brdf Product
Abstract
Many previous studies attempted to extract prior reflectance anisotropy knowledge from historical Bidirectional reflectance distribution function (BRDF) product based on normalized difference vegetation index (NDVI) data. However, the correlation between reflectance anisotropy and NDVI is still controversial. This study used BRDF archetypes to represent different reflectance anisotropy, and analyzed the correlation between reflectance anisotropy and NDVI based on five-year time series MODIS BRDF data. Nadir reflectance and NDVI retrieved from different BRDF archetypes and same multi-angular observations were also compared with each other to further study this correlation. Results show that the six BRDF archetype classes are all contained in any range of NDVI with one BRDF archetype class accounting for a maximum of 40%. Nadir reflectance and NDVI retrieved from different BRDF archetypes have little difference with each other at different solar zenith angles. NDVI is not a reliable clue to distinguish surface reflectance anisotropy.
Year
DOI
Venue
2016
10.1109/IGARSS.2016.7729326
2016 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
Keywords
Field
DocType
BRDF Archetype, NDVI, AFX, MODIS
Nadir,Bidirectional reflectance distribution function,Anisotropy,Computer science,Remote sensing,Correlation,Normalized Difference Vegetation Index,Reflectivity,Zenith
Conference
ISSN
Citations 
PageRank 
2153-6996
0
0.34
References 
Authors
2
7
Name
Order
Citations
PageRank
Hu Zhang1438.57
Ziti Jiao26021.35
Pengfei Liu361.11
Yadong Dong45013.01
Yi Lian500.34
Hongyuan Huo6166.23
Tiejun Cui7393117.66