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Radiometric Characterization of Hyperspectral Imagers using Multispectral SensorsThe Remote Sensing Group (RSG) at the University of Arizona has a long history of using ground-based test sites for the calibration of airborne and satellite based sensors. Often, ground-truth measurements at these test sites are not always successful due to weather and funding availability. Therefore, RSG has also automated ground instrument approaches and cross-calibration methods to verify the radiometric calibration of a sensor. The goal in the cross-calibration method is to transfer the calibration of a well-known sensor to that of a different sensor, This work studies the feasibility of determining the radiometric calibration of a hyperspectral imager using multispectral a imagery. The work relies on the Moderate Resolution Imaging Spectroradiometer (M0DIS) as a reference for the hyperspectral sensor Hyperion. Test sites used for comparisons are Railroad Valley in Nevada and a portion of the Libyan Desert in North Africa. Hyperion bands are compared to MODIS by band averaging Hyperion's high spectral resolution data with the relative spectral response of M0DlS. The results compare cross-calibration scenarios that differ in image acquisition coincidence, test site used for the calibration, and reference sensor. Cross-calibration results are presented that show agreement between the use of coincident and non-coincident image pairs within 2% in most brands as well as similar agreement between results that employ the different MODIS sensors as a reference.
Document ID
20100019255
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
McCorkel, Joel
(Arizona Univ. Tucson, AZ, United States)
Kurt, Thome
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Leisso, Nathan
(Arizona Univ. Tucson, AZ, United States)
Anderson, Nikolaus
(Arizona Univ. Tucson, AZ, United States)
Czapla-Myers, Jeff
(Arizona Univ. Tucson, AZ, United States)
Date Acquired
August 24, 2013
Publication Date
August 2, 2009
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: SPIE Optics and Photonics 2009
Location: San Diego, CA
Country: United States
Start Date: August 2, 2009
End Date: August 6, 2009
Sponsors: International Society for Optical Engineering
Distribution Limits
Public
Copyright
Public Use Permitted.
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