Acquisition Method and Calibration Application on Hyperion　Hyperspectral Reflectance

摘要

As the most commonly used hyperspectral data source, the acquisition method of Hyperion hyperspectral reflectancebecame more and more important. In this study, a batch atmospheric correction method based on Second Simulation of aSatellite Signal in the Solar Spectrum radiative transfer code (6SBAC) has been presented. The 6SBAC was used MODISsynchronous atmospheric data products to obtain meteorological parameters, and set up automatic input-output parametermodule to obtain Hyperion reflectance data. At the same time, using Fast Line-of-sight Atmospheric Analysis of SpectralHypercubes (FLAASH), Quick Atmospheric Correction(QUAC) atmospheric correction methods on Hyperion satelliteimages, the results was compared with the synchronous hyperspectral data measured in Dunhuang test site. Theauthenticity of the obtained hyperspectral reflectance was verified by MODIS surface products. The results showed thatthe hyperspectral reflectance obtained by the three kinds of atmospheric correction methods were consistent with themeasured reflectance in trend. Despite the compromises in different wavelength regions 6SBAC is found to be a bettercorrector method for the Hyperion hyperspectral reflectance acquisition. The precision of the 6SBAC obtainedhyperspectral reflectance can meet the application requirements and improve the acquisition efficiency of Hyperionhyperspectral reflectance data.