AVIRIS-NG L1B Calibrated Radiance, Facility Instrument Collection, V1

Description

This dataset contains Level 1B (L1B) orthocorrected, scaled radiance image files as well as files of observational geometry and illumination parameters and supporting sensor band information from the Airborne Visible / Infrared Imaging Spectrometer-Next Generation (AVIRIS-NG) instrument. This is the NASA Earth Observing System Data and Information System (EOSDIS) facility instrument archive of these data. The NASA AVIRIS-NG is a pushbroom spectral mapping system with high signal-to-noise ratio (SNR), designed and toleranced for high performance spectroscopy. AVIRIS-NG measures reflected radiance at 5-nm intervals in the Visible to Shortwave Infrared (VSWIR) spectral range from 380-2510 nm. The AVIRIS-NG sensor has a 1 milliradian instantaneous field of view, providing altitude dependent ground sampling distances from 20 m to sub-meter range. In this dataset, for each flight line, six file types are included: orthocorrected calibrated radiance image (img) files, geometric lookup table (glt) and orthocorrected observation geometry and illumination (obs_ort) files. Also included are unprojected files of input geometry (igm), parameters relating to the geometry of observation and illumination (obs), and orthocorrected locations of each pixel (loc). In addition, ancillary files for the flight line are provided, including quick look images and polygon outlines of imagery footprints. The AVIRIS-NG L1B data are provided in ENVI binary format, which includes a flat binary file accompanied by a header (.hdr) file holding metadata in text format. The ancillary files include JPEG images and maps in Keyhole Markup Language (KML). The AVIRIS-NG is flown on a variety of aircraft platforms including the Twin Otter, the King Air B-200, and NASA's high altitude ER-2. This archive currently includes data from 2014 - 2022. Additional AVIRIS-NG facility instrument L1B data will be added as they become available. AVIRIS-NG supports NASA Science and applications in many areas including plant composition and function, geology and soils, greenhouse gas mapping, and calibration of orbital platforms.

Resources

Name Format Description Link
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/AVIRIS/guides/AVIRIS-NG_L1B_radiance.html
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F2095
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/daacdata/aviris/AVIRIS-NG_L1B_radiance/
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/2095
21 AVIRIS-NG L1B Calibrated Radiance, Facility Instrument Collection, V1: AVIRIS-NG_readme.txt https://data.ornldaac.earthdata.nasa.gov/public/aviris/AVIRIS-NG_L1B_radiance/comp/AVIRIS-NG_readme.txt
33 AVIRIS-NG L1B Calibrated Radiance, Facility Instrument Collection, V1: AVIRIS-NG_L1B_radiance.pdf https://data.ornldaac.earthdata.nasa.gov/public/aviris/AVIRIS-NG_L1B_radiance/comp/AVIRIS-NG_L1B_radiance.pdf
22 Portion of quick look image for flight ang20200907t214229 on 07 September 2020 over the Russian River in Sonoma County south of Cloverdale, California (approximately 38.7392 lat, -122.9387 lon). Source: ancillary file ang20200907t214229_geo.jpg https://daac.ornl.gov/AVIRIS/guides/AVIRIS-NG_L1B_radiance_Fig1.jpg

Tags

  • infrared-wavelengths
  • visible-wavelengths
  • spectral-engineering
  • earth-science

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