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Proceedings Paper

The radiometric characteristics of KOMPSAT-3A by using reference radiometric tarps and ground measurement
Author(s): Jong-Min Yeom
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Paper 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.

Paper Details

Date Published: 19 September 2016
PDF: 6 pages
Proc. SPIE 9972, Earth Observing Systems XXI, 99720Q (19 September 2016); doi: 10.1117/12.2238403
Show Author Affiliations
Jong-Min Yeom, Korean Aerospace Research Institute (Korea, Republic of)

Published in SPIE Proceedings Vol. 9972:
Earth Observing Systems XXI
James J. Butler; Xiaoxiong (Jack) Xiong; Xingfa Gu, Editor(s)

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