Validation of MODIS albedo products with high resolution albedo estimates from FORMOSAT-2

Author

Mira, Maria ; Courault, Dominique ; Olioso, A. ; Weiss, Michael ; Marloie, Olivier ; Baret, Frederic ; Hagolle, Olivier ; Gallego-Elvira, B.

Author_Institution

EMMAH, INRA, Avignon, France

fYear

2013

fDate

21-26 July 2013

Firstpage

3250

Lastpage

3253

Abstract

Among MODIS products (freely available to the scientific community from 2001), albedo data (MCD43B3) are 16 days composites at 1km spatial resolution, widely used for various applications in climate models, but which still remains difficult to validate. The objective of this study is to propose a method to validate these products with high spatial and temporal resolution data. 31 FORMOSAT-2 images acquired over a small region in the South-Eastern France at 8m for spatial resolution were aggregated at MODIS resolution using a Point Spread Function. The correlation coefficient resulting from comparisons between albedo MODIS and the 1-km FORMOSAT-2 albedos varied from 0.93 to 0.98, which show reasonably accurate results for this study area.

Keywords

albedo; atmospheric boundary layer; atmospheric techniques; land surface temperature; remote sensing; FORMOSAT-2 images; MODIS albedo product validation; MODIS resolution; correlation coefficient; high resolution albedo estimates; high spatial resolution data; high temporal resolution data; point spread function; southeastern France; Correlation coefficient; Land surface; MODIS; Remote sensing; Sea surface; Spatial resolution; MODIS validation; aggregation; albedo; high resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2013 IEEE International

Conference_Location

Melbourne, VIC

ISSN

2153-6996

Print_ISBN

978-1-4799-1114-1

Type

conf

DOI

10.1109/IGARSS.2013.6723520

Filename

6723520