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TitleRetrieval of Surface Reflectance from Hyperion Radiance Data
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LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorStaenz, K; Neville, R A; Clavette, S; Landry, R; White, H PORCID logo; Hitchcock, R
SourceIGARSS 2002, Toronto, Canada, June 24-28; 2002., https://doi.org/10.4095/219887 Open Access logo Open Access
Image
Year2002
Alt SeriesEarth Sciences Sector, Contribution Series 20043085
Documentbook
Lang.English
Mediapaper; CD-ROM; on-line; digital
File formatpdf
Released2002 01 01
AbstractSurface Reflectance was retrieved from Hyperion data by a procedure involving data preprocessing steps and atmospheric correction. Several steps are required to remove sensor artifacts in the spectral and spatial domain. These artifacts include a spatial shift in the short-wave infrared (SWIR) data, an along-track striping, a spatial misalignment of the visible near infrared (VNIR) and SWIR data, and a cross-track spectral (smile/frown) effect. A look-up table approach in combination with the radiance transfer code MODTRAN4.2 was applied to preprocessed at-sensor radiance data to retrieve surface reflectance. Results indicate that the spectral calibration data provided do not achieve a proper positioning of the bands' centre wavelengths. Wavelength shifts of up to 1 nm in the VNIR and up to 3 nm in the SWIR remain. This can be seen especially at wavelengths affected by strong gaseous absorptions.
GEOSCAN ID219887

 
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