AIRMISR Level 1B
Entry Title: Airborne Multi-angle Imaging SpectroRadiometer (AirMISR) Data from the Monterey 1999 Campaign

Entry ID: AIRMISR_MONTEREY_1999_1
Radiation Budget Field Campaigns
Description

The AIRMISR_MONTEREY_1999 data were acquired on June 29, 1999 during a field mission which focused on Monterey, California. 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 aftFor 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-infraredTwo types of AirMISR data products are available - the Level 1 Radiometric product (L1B1) and the Level 1 Georectified radiance product (L1B2).

DOI

10.5067/ASDC_DAAC/AIRMISR_MONTEREY_1999_1

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Resources and Documentation

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AirMISR L1B2/L2AS Coregistration Tool - Direct File Download (.tar)

MISR Paths Tool - Direct File Download (.kml)

AirMISR L1B2/L2AS Coregistration Tool IDL source code - Direct File Download (.pro)

AirMISR L1B2/L2AS Coregistration Tool IDL executable save file (use with the IDL Virtual Machine) - Direct File Download (.sav)

GET RELATED VISUALIZATION

ASDC List of MISR Imagery and Articles

AirMISR Campaign Imagery: AirMISR Red Band Browse Images from the MONTEREY_1999 Field Campaign, June 29, 1999

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Keywords

From GCMD Science Keywords:
  • VISIBLE RADIANCE
  • INFRARED RADIANCE
  • Digital Camera Output
  • Radiance
  • NASA ER-2
Data Distribution

File Format(s):

HDF4

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Spatial Information

spatial-coverage-map
Spatial Coverage: (35.1, 37.4), (-123.3, -120.9)
Spatial Coverage Type: Horizontal
Horizontal Resolution Range: 1 meter - < 30 meters
Coordinate System: Geodetic
Granule Spatial Representation: Geodetic
Locations

CALIFORNIA UNITED STATES OF AMERICA NORTH AMERICA CONTINENT
Temporal Information

Temporal Coverage: 1999-06-29 - 1999-07-13
Temporal Resolution: 40.8 microseconds
Platforms

Aircraft
NASA ER-2
NASA Earth Resources-2
AIRMISR
Airborne Multi-angle Imaging SpectroRadiometer
AIRCRAFT
AIRMISR
Airborne Multi-angle Imaging SpectroRadiometer
Metadata Dates

Created on 2002-07-24
Last updated on 2020-06-22