Validation of the algorithm for reconstructing the Earth surface reflection coefficients from MODIS data

M. V. Tarasenkov; V. V. Belov; M. V. Engel; A. V. Zimovaya; M. N. Zonov; A. S. Bogdanova

doi:10.1117/12.2644851

7 December 2022 Validation of the algorithm for reconstructing the Earth surface reflection coefficients from MODIS data

M. V. Tarasenkov, V. V. Belov, M. V. Engel, A. V. Zimovaya, M. N. Zonov, A. S. Bogdanova

Author Affiliations +

Proceedings Volume 12341, 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 123412Y (2022) https://doi.org/10.1117/12.2644851
Event: 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 2022, Tomsk, Russia

Abstract

To validate the proposed algorithm for retrieving the reflection coefficients of the earth’s surface, the results of ground - based measurements at the test area with the coordinates 38.829°N, 8.791°W are compared with the results obtained with the proposed algorithm, the MOD09 algorithm, and the algorithm without atmospheric correction. The comparison shows a good agreement of the results yielded by the proposed and MOD09 algorithms with the ground measurements. The reflection coefficients for the area with the coordinates 38.4-39.3º N, 8.3-9.2º W on May 03, 2016, as retrieved by the proposed algorithm, the MOD09 algorithm, and the algorithm without atmospheric correction are analyzed. For the MODIS channels 1 and 2, the MOD09 algorithm gives negative values of the reflection coefficient for some pixels, while the proposed algorithm does not. The algorithm without atmospheric correction overestimates the reflection coefficient.

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M. V. Tarasenkov, V. V. Belov, M. V. Engel, A. V. Zimovaya, M. N. Zonov, and A. S. Bogdanova "Validation of the algorithm for reconstructing the Earth surface reflection coefficients from MODIS data", Proc. SPIE 12341, 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 123412Y (7 December 2022); https://doi.org/10.1117/12.2644851

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