Proceedings of the KSRS Conference (대한원격탐사학회:학술대회논문집)
- 2005.10a
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- Pages.616-619
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- 2005
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- 1226-9743(pISSN)
ABSOLUTE RADIOMETRIC CALIBRATION OF 1M SATELLITE IMAGERY
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Lee Sun-Gu
(Space Application Center, Korea Aerospace Research Institute) ;
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Lee Dong-han
(Space Application Center, Korea Aerospace Research Institute) ;
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Seo Doo-chun
(Space Application Center, Korea Aerospace Research Institute) ;
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Song Jeong Heon
(Space Application Center, Korea Aerospace Research Institute) ;
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Kim Yongseung
(Space Application Center, Korea Aerospace Research Institute) ;
- Paik Hongyul (Space Application Center, Korea Aerospace Research Institute)
- Published : 2005.10.01
Abstract
CALNAL team of Korea Aerospace Research Institute(KARI) performed field campaigns for absolute radiometric calibration of 1m satellite image on Daejeon and the cal/val site of Goheung. The satellite image have spatial resolution of 1m in panchromatic spectral band of 450-900nm. The performed cal/val method is the reflectance-based of vicarious calibration methods. We collected ground-based and meteology data such as temperature, surface pressure and reflectance of targets, and radiosonde data used only to test in Goheung. Data collected on each field served as input to radiative transfer codes to generate a top-of-atmosphere(TOA) radiance estimate. Derived TOA is compared with DN of overpass satellite to calculate calibration coefficient of gain and offset.