EOS AM-1 preflight radiometric measurement comparison using the Advanced Spaceborne Thermal Emission and Reflection radiometer (ASTER) visible/near-infrared integrating sphere

Fumihiro Sakuma; B. Carol Johnson; Stuart F. Biggar; James J. Butler; J. W. Cooper; Masaru Hiramatsu; Katsumi Suzuki

doi:10.1117/12.258101

11 November 1996 EOS AM-1 preflight radiometric measurement comparison using the Advanced Spaceborne Thermal Emission and Reflection radiometer (ASTER) visible/near-infrared integrating sphere

Fumihiro Sakuma, B. Carol Johnson, Stuart F. Biggar, James J. Butler, J. W. Cooper, Masaru Hiramatsu, Katsumi Suzuki

Author Affiliations +

Proceedings Volume 2820, Earth Observing System; (1996) https://doi.org/10.1117/12.258101
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

As a part of the Earth observing system (EOS) cross- calibration activities before the first flight (denoted AM- 1), a radiometric measurement comparison was held in February 1995 at the NEC Corporation in Yokohama, Japan, Researchers from the National Institute of Standards and Technology (NIST), the National Aeronautics and Space Administration/Goddard Space Flight Center (NASA/GSFC), the University of Arizona Optical Sciences Center, and the National Research Laboratory of Metrology (NRLM) used their portable radiometers to measure the spectral radiance of the advanced spaceborne thermal emission and reflection radiometer (ASTER) visible/near-infrared (VNIR) integrating sphere at three radiance levels. The levels each correspond to 83% of the maximum radiance that is expected to be measured using the three VNIR bands of the EOS ASTER instrument, which are centered at 0.56 micrometer, 0.66 micrometer, and 0.81 micrometer. These bands are referred to as bands 1, 2, and 3. The average of the measurements of the four radiometers was between 1% and approximately 1.5% higher for all three bands when compared to the NEC calibration of the sphere. A comparison of the measurements from the participating radiometers resulted in good agreement. These results are encouraging and will be followed by extension to other EOS AM-1 instrument calibration sources.

Citation Download Citation

Fumihiro Sakuma, B. Carol Johnson, Stuart F. Biggar, James J. Butler, J. W. Cooper, Masaru Hiramatsu, and Katsumi Suzuki "EOS AM-1 preflight radiometric measurement comparison using the Advanced Spaceborne Thermal Emission and Reflection radiometer (ASTER) visible/near-infrared integrating sphere", Proc. SPIE 2820, Earth Observing System, (11 November 1996); https://doi.org/10.1117/12.258101

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