The radiometric characteristics of KOMPSAT-3A by using reference radiometric tarps and ground measurement

Jong-Min Yeom

doi:10.1117/12.2238403

19 September 2016 The radiometric characteristics of KOMPSAT-3A by using reference radiometric tarps and ground measurement

Jong-Min Yeom

Author Affiliations +

Proceedings Volume 9972, Earth Observing Systems XXI; 99720Q (2016) https://doi.org/10.1117/12.2238403
Event: SPIE Optical Engineering + Applications, 2016, San Diego, California, United States

Abstract

In this study, we performed the vicarious radiometric calibration of KOMPSAT-3A multispectral bands by using 6S radiative transfer model, radiometric tarps, MFRSR measurements. Furthermore, to prepare the accurate input parameter, we also did experiment work to measure the BRDF of radiometric tarps based on hyperspectral gonioradiometer to compensate the observation geometry difference between satellite and ASD Fieldspec 3. Also, we measured point spread function (PSF) by using the bright star and corrected multispectral bands based on the Wiener filter. For accurate atmospheric constituent effects such as aerosol optical depth, column water, and total ozone, we used MFRSR instrument and estimated related optical depth of each gases. Based on input parameters for 6S radiative transfer model, we simulated top of atmosphere (TOA) radiance by observed by KOMPSAT-3A and matched-up the digital number. Consequently, DN to radiance coefficients was determined based on aforementioned methods and showed reasonable statistics results.

Citation Download Citation

Jong-Min Yeom "The radiometric characteristics of KOMPSAT-3A by using reference radiometric tarps and ground measurement", Proc. SPIE 9972, Earth Observing Systems XXI, 99720Q (19 September 2016); https://doi.org/10.1117/12.2238403

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