Analyses of Hyperspectral and Directional Chris Data for Agricultural Monitoring Using a Canopy Reflectance Model
نویسنده
چکیده
Agricultural monitoring using a canopy reflectance model through analyses of hyperspectral and directional CHRIS data is targeted. CHRIS data of the Upper Rhine Valley test-site (Germany) were destriped and geometrically corrected, so that the 5 angular observations can be compared. An atmospherical correction was performed that uses the radiative transfer model MODTRAN 4. An extended version of the GeoSAIL canopy reflectance model (FourSAIL2) is adapted according to the spectral wavelength of CHRIS. Optical simulation results are compared with satellite measurements. Directional reflectance spectra are extracted and the directional variations compared to the model results.
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