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http://dx.doi.org/10.7780/kjrs.2020.36.5.1.11

Sensitivity Analysis of Surface Reflectance Retrieved from 6SV LUT for Each Channel of KOMPSAT-3/3A  

Jung, Daeseong (Division of Earth Environmental Science (Major of Spatial Information Engineering), Pukyong National University)
Jin, Donghyun (Division of Earth Environmental Science (Major of Spatial Information Engineering), Pukyong National University)
Seong, Noh-Hun (Division of Earth Environmental Science (Major of Spatial Information Engineering), Pukyong National University)
Lee, Kyeong-Sang (Division of Earth Environmental Science (Major of Spatial Information Engineering), Pukyong National University)
Seo, Minji (Division of Earth Environmental Science (Major of Spatial Information Engineering), Pukyong National University)
Choi, Sungwon (Division of Earth Environmental Science (Major of Spatial Information Engineering), Pukyong National University)
Sim, Suyoung (Division of Earth Environmental Science (Major of Spatial Information Engineering), Pukyong National University)
Han, Kyung-Soo (Division of Earth Environmental Science (Major of Spatial Information Engineering), Pukyong National University)
Kim, Bo-Ram (Satellite Application Division, Korea Aerospace Research Institute)
Publication Information
Korean Journal of Remote Sensing / v.36, no.5_1, 2020 , pp. 785-791 More about this Journal
Abstract
The radiance measured from satellite has noise due to atmospheric effect. Atmospheric correction is the process of calculating surface reflectance by removing atmospheric effect and surface reflectance is calculated by the Radiative Transfer Model (RTM)-based Look-Up Table (LUT). In general, studies using a LUT make LUT for each channel with the same atmospheric and geometric conditions. However, atmospheric effect of atmospheric factors do not react sensitively in the same channel. In this study, the LUT for each channel of Korea Multi-Purpose SATellite (KOMPSAT)-3/3A was made under the same atmospheric·geometric conditions. And, the accuracy of the LUT was verified by using the simulated Top of Atmosphere radiation and surface reflectance in the RTM. As a result, the relative error of the surface reflectance in the blue channel that sensitive to the aerosol optical depth was 81.14% at the maximum, and 42.67% in the NIR (Near Infrared) channel.
Keywords
Atmospheric correction; Radiative Transfer Model; Look-Up Table; Surface reflectance;
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