Automated Generation of Hyperspectral Fiducial Reference Measurements of Water and Land Surface Reflectance for the Hypernets Networks

Abstract

The HYPERNETS land and water networks are a set of autonomous field sites for the measurement of fiducial reference measurements of hyperspectral surface reflectance for a wide range of surface types for use in satellite Earth observation validation. In order to generate the reflectance products a software ground processor, called the hypernets_processor, is required for automated processing of the acquisitions through data transmission and conversion, application of calibration, evaluation of reflectance and other variables and archiving for web distribution. Furthermore, to achieve fiducial reference measurement quality, measurement uncertainty is propagated through the full processing chain, including treatment of temporal and wavelength error-covariance, a level of detail unique for any such satellite validation network. The processor is now operationally running for a series of test network sites.