Verification of the ASTER/TIR atmospheric correction algorithm based on water surface emissivity retrieved

Hideyuki Tonooka; Frank D. Palluconi

doi:10.1117/12.455143

8 February 2002 Verification of the ASTER/TIR atmospheric correction algorithm based on water surface emissivity retrieved

Hideyuki Tonooka, Frank D. Palluconi

Author Affiliations +

Proceedings Volume 4486, Infrared Spaceborne Remote Sensing IX; (2002) https://doi.org/10.1117/12.455143
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

The standard atmospheric correction algorithm for five thermal infrared (TIR) bands of the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is currently based on radiative transfer computations with global assimilation data on a pixel-by-pixel basis. In the present paper, we verify this algorithm using 100 ASTER scenes globally acquired during the early mission period. In this verification, the max-min difference (MMD) of the water surface emissivity retrieved from each scene is used as an atmospheric correction error index, since the water surface emissivity is well known; if the MMD retrieved is large, an atmospheric correction error also will be possibly large. As the results, the error of the MMD retrieved by the standard atmospheric correction algorithm and a typical temperature/emissivity separation algorithm is shown to be remarkably related with precipitable water vapor, latitude, elevation, and surface temperature. It is also mentioned that the expected error on the MMD retrieved is 0.05 for the precipitable water vapor of 3 cm.

Citation Download Citation

Hideyuki Tonooka and Frank D. Palluconi "Verification of the ASTER/TIR atmospheric correction algorithm based on water surface emissivity retrieved", Proc. SPIE 4486, Infrared Spaceborne Remote Sensing IX, (8 February 2002); https://doi.org/10.1117/12.455143

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