Evaluation of Diurnal Hyperspectral Brf Data Acquired with the Rsl Field Goniometer during the Daisex’99 Campaign
نویسنده
چکیده
A directional data set of bare soil and alfalfa acquired using the Swiss Field Goniometer during the DAIS Experiment 1999 (DAISEX’99) campaign is preprocessed and analyzed for its quality. Two different normalization methods to derive anisotropy factors are tested and discussed. The possible effect of varying reflectances on the retrieval of vegetation parameters due to changing sun and viewing geometries is shown by the derivation of the weighted difference vegetation index (WDVI) for the available alfalfa multiangular data.
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