This data set contains 48 L1-calibrated scenes from the Airborne Visible-InfraRed Imaging Spectrometer (AVIRIS), provided by NASA. All scenes are 224 bands and cropped to a standardised 512x512 size, stored as raw 16-bit unsigned integers, in little endian byte order and in band-sequential (BSQ) order. This data was collected over a varied range of locations across North America between 2008 and 2017 and is a selection of the open access data provided by NASA's Jet Propulsion Laboratory (JPL) at https://aviris.jpl.nasa.gov/dataportal/. Specific dates and locations of each scene may be identified using the flight ID number in the scene name. These scenes compose a test set to evaluate compression algorithms for hyperspectral data.

METHODOLOGICAL INFORMATION

1. Description of methods used for collection-generation of data: AVIRIS is an acronym for the Airborne Visible InfraRed Imaging Spectrometer. AVIRIS is a premier instrument in the realm of Earth Remote Sensing. It is a unique optical sensor that delivers calibrated images of the upwelling spectral radiance in 224 contiguous spectral channels (also called bands) with wavelengths from 400 to 2500 nanometers (nm). AVIRIS has been flown on four aircraft platforms: NASA's ER-2 jet, Twin Otter International's turboprop, Scaled Composites' Proteus, and NASA's WB-57. The ER-2 flies at approximately 20 km above sea level, at about 730 km/hr. The Twin Otter aircraft flies at 4km above ground level at 130km/hr. AVIRIS has flown all across the US, plus Canada and Europe. See https://aviris.jpl.nasa.gov for more information.

2. Methods for processing the data: L1B data products are orthocorrected and radiometrically corrected which means converted into units of radiance, as opposed to the unitless AVIRIS digital numbers and each pixel in the imagery is individually ray traced using the best-estimate of sensor location and attitude until it intersects the digital elevation model. Radiance is measured in units of microwatts per square centimeter per nanometer per steradian, or uW / (cm^2 * nm * sr). AVIRIS radiometric calibration factors are calculated by measuring the response of AVIRIS to an integrating sphere (a known target illuminated by a known light source). This calibration is accurate to within 7%, absolute, over time. Intra-flight accuracy is within 2%.

3. Instrument- or software- specific information needed to interpret the data: None.

4. Instruments, calibration and standards information: Available at https://popo.jpl.nasa.gov/pub/cal_files/

5. Environmental or experimental conditions: Various, see flight logs in https://aviris.jpl.nasa.gov/status/flight_logs.html