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| Titel |
Retrieving background surface reflectance of Himawari-8/AHI using BRDF modeling |
| VerfasserIn |
Sungwon Choi, Minji Seo, Kyeong-sang Lee, Kyung-Soo Han |
| Konferenz |
EGU General Assembly 2017
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250148573
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| Publikation (Nr.) |
 EGU/EGU2017-12840.pdf |
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| Zusammenfassung |
| In these days, remote sensing is more important than past. And retrieving surface reflectance
in remote sensing is also important. So there are many ways to retrieve surface reflectance by
my countries with polar orbit and geostationary satellite. We studied Bidirectional
Reflectance Distribution Function (BRDF) which is used to retrieve surface reflectance.
In BRDF equation, we calculate surface reflectance using BRD components and
angular data. BRD components are to calculate 3 of scatterings, isotropic geometric
and volumetric scattering. To make Background Surface Reflectance (BSR) of
Himawari-8/AHI. We used 5 bands (band1, band2, band3, band4, band5) with BRDF. And
we made 5 BSR for 5 channels. For validation, we compare BSR with Top of canopy
(TOC) reflectance of AHI. As a result, bias are from -0.00223 to 0.008328 and Root
Mean Square Error (RMSE) are from 0.045 to 0.049. We think BSR can be used to
replace TOC reflectance in remote sensing to improve weakness of TOC reflectance. |
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