A method for the retrieval of aerosol optical thickness on CBERS data from top-of-atmosphere radiance

Author

Zhang, Xin ; Zhao, Xiang ; Li, Bing ; Hu, Ni ; Li, Qing ; Liu, Suhong

Author_Institution

State Key Lab. of Remote Sensing Sci., Beijing Normal Univ., Beijing, China

fYear

2011

fDate

24-29 July 2011

Firstpage

4030

Lastpage

4033

Abstract

A method for the retrieval of aerosol optical thickness on China-Brazil Earth Resources Satellite (CBERS) data has been introduced. This algorithm is designed to estimate precise Aerosol Optical Thickness (AOT) only using Visible to Near-infrared spectral bands (400-900nm) information. The first part of this paper is devoted to the description of this method; outline the main steps in this correction process. The validation task is detailed in the second part. Many groups of simulated data was used to validate this algorithm, the R-squared equals to 0.98 and the RMSE equals to 0.052 shows the method has a good performance. Then an image of CBERS was selected to validate this method. The surface reflectance after atmospheric correction is much closer to the real spectrum.

Keywords

aerosols; atmospheric optics; atmospheric techniques; geophysical image processing; CBERS data; China-Brazil Earth Resources Satellite data; aerosol optical thickness; atmospheric correction; correction process; near-infrared spectral band information; surface reflectance; top-of-atmosphere radiance; validation task; visible spectral band information; Adaptive optics; Atmospheric modeling; Land surface; Optical reflection; Optical sensors; Reflectivity; Vegetation mapping; Aerosol Optical Thickness; Atmospheric Correction; CBERS; Surface Reflectance;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2011 IEEE International

Conference_Location

Vancouver, BC

ISSN

2153-6996

Print_ISBN

978-1-4577-1003-2

Type

conf

DOI

10.1109/IGARSS.2011.6050116

Filename

6050116