A Simple Atmospheric Correction Model for ROCSAT-2 RSI Data

A simple atmospheric correction model (SACM) for ROCSAT-2 RSI data is presented. Gaseous transmission and Rayleigh optical depth are simplified as analytic functions. Rayleigh and aerosol scattering are determined using lookup tables. Results indicate that SACM not only quite accurately reproduces t...

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Published inTAO : Terrestrial, atmospheric, and oceanic sciences Vol. 14; no. 4; pp. 505 - 514
Main Author 劉建慧(Chien-Hui Liu)
Format Journal Article
LanguageEnglish
Published Taiwan 中華民國地球科學學會 01.12.2003
Chinese Geoscience Union (Taiwan)
Subjects
Aerosol scattering
Analytic functions
Atmospheric correction
Data processing
Error correction
Lookup tables
Optical analysis
Reflectance
Tables
Adjacency effect
ROCSAT-2
Atmospheric correction model
Reflectance
Online AccessGet full text
ISSN1017-0839
2311-7680
DOI10.3319/TAO.2003.14.4.505(A)

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Summary:A simple atmospheric correction model (SACM) for ROCSAT-2 RSI data is presented. Gaseous transmission and Rayleigh optical depth are simplified as analytic functions. Rayleigh and aerosol scattering are determined using lookup tables. Results indicate that SACM not only quite accurately reproduces top-of-atmosphere reflectance coumputed by the 6S model (Vermote et al. 1997), but also does so faster than 6S. The results of the inverse application of SACM also indicate that the error adjacency effect is corrected. Future studies and possible improvements are also highlighted.
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ISSN:1017-0839
2311-7680
DOI:10.3319/TAO.2003.14.4.505(A)