Airborne Multi-angle Imaging SpectroRadiometer (AirMISR) Data from the KONza Validation EXperiment (KONVEX)

Description

The AIRMISR_KONVEX data were acquired during the KONza Validation EXperiment (KONVEX) which occurred 11 - 18 July 1999. The AIRMISR_KONVEX data were obtained on 13 July 1999, flight #36 only. The Jet Propulsion Laboratory (JPL) in Pasadena, California provided the data. The Airborne Multi-angle Imaging SpectroRadiometer (AirMISR) is an airborne instrument for obtaining multi-angle imagery similar to that of the satellite-borne Multi-angle Imaging SpectroRadiometer (MISR) instrument, which is designed to contribute to studies of the Earth's ecology and climate. AirMISR flies on the NASA ER-2 aircraft. The Jet Propulsion Laboratory in Pasadena, California built the instrument for NASA. Unlike the satellite-borne MISR instrument, which has nine cameras oriented at various angles, AirMISR uses a single camera in a pivoting gimbal mount. A data run by the ER-2 aircraft is divided into nine segments, each with the camera positioned to a MISR look angle. The gimbal rotates between successive segments, such that each segment acquires data over the same area on the ground as the previous segment. This process is repeated until all nine angles of the target area are collected. The swath width, which varies from 11 km in the nadir to 32 km at the most oblique angle, is governed by the camera's instantaneous field-of-view of 7 meters cross-track x 6 meters along-track in the nadir view and 21 meters x 55 meters at the most oblique angle. The along-track image length at each angle is dictated by the timing required to obtain overlap imagery at all angles, and varies from about 9 km in the nadir to 26 km at the most oblique angle. Thus, the nadir image dictates the area of overlap that is obtained from all nine angles. A complete flight run takes approximately 13 minutes. The 9 camera viewing angles are:0 degrees or nadir26.1 degrees, fore and aft45.6 degrees, fore and aft60.0 degrees, fore and aft70.5 degrees, fore and aft For each of the camera angles, images are obtained at 4 spectral bands. The spectral bands can be used to identify vegetation and aerosols, estimate surface reflectance and ocean color studies. The center wavelengths of the 4 spectral bands are:443 nanometers, blue555 nanometers, green670 nanometers, red865 nanometers, near-infrared Two types of AirMISR data products are available - the Level 1 Radiometric product (L1B1) and the Level 1 Georectified radiance product (L1B2).

Resources

Name Format Description Link
21 Earthdata Search for AIRMISR_KONVEX_1 (NASA Application to search, discover, visualize, refine, and access NASA Earth Observation data) https://search.earthdata.nasa.gov/search/granules?p=C1000000722-LARC_ASDC
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FASDC_DAAC%2FAIRMISR_KONVEX_1
21 AirMISR project home page https://misr.jpl.nasa.gov/Mission/airMISR/
21 DOI data set landing page for AIRMISR_KONVEX_1 https://doi.org/10.5067/ASDC_DAAC/AIRMISR_KONVEX_1
33 AirMISR Read Software Document Readme https://eosweb.larc.nasa.gov/sites/default/files/project/airmisr/airmisr_read_software.pdf
21 Readme to open and read AIRMISR L1B2 GP (Georectified Radiance Product) HDF-EOS data files https://eosweb.larc.nasa.gov/sites/default/files/project/airmisr/read_software/read_airmisr.pro
33 Quality Summary: AirMISR KONVEX https://eosweb.larc.nasa.gov/sites/default/files/project/airmisr/quality_summaries/airmisr_konvex.pdf
21 OPeNDAP data access for AIRMISR_KONVEX_1 https://opendap.larc.nasa.gov/opendap/AirMISR/AIRMISR_KONVEX/contents.html
21 EOSWEB Data and Information for AirMISR https://eosweb.larc.nasa.gov/project/airmisr/airmisr_table
21 Readme Information about the AirMISR data taken during the KONza Validation EXperiment(KONVEX) including implementation of the sample READ software https://eosweb.larc.nasa.gov/sites/default/files/project/airmisr/readme/readme_airmisr_konvex

Tags

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

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