Instantaneous Field of View and Spatial Sampling of the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS)The Airborne Visible/Infrared Imaging Spectromerte (AVIRIS) measures the upwelling radiance in 225 spectral bands. These data are acquired as images of approximately 11 by up to 100 km in extent at nominally 20 by 20 meter spatial resolution. In this paper we describe the underlying spatial sampling ans spatial response characteristic of AVIRIS.