In-Field Absolute Calibration of Ground and Airborne VIS-NIR-SWIR Hyperspectral Point Spectrometers
1
The Remote Sensing Laboratory, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boker Campus 84990, Israel
2
IARD Sensing Solutions Ltd., Kibbutz Yagur, 30065, Israel
*
Author to whom correspondence should be addressed.
Remote Sens. 2014, 6(2), 1158-1170; https://doi.org/10.3390/rs6021158
Received: 18 December 2013
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Revised: 20 January 2014
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Accepted: 23 January 2014
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Published: 29 January 2014
Spectrometer calibration and measurements of spectral radiance are often required when performing ground, aerial, and space measurements. While calibrating a spectrometer in the field using an integrating sphere is practically unachievable, calibration against a quartz halogen (QH) lamp is a quite easy and feasible option. We describe a calibration protocol whereby a professional QH lamp, operating with a stabilized current source, is first calibrated in the laboratory against a US National Institute of Standards and Technology (NIST) traceable integrating sphere and, then, used for the field calibration of a spectrometer before a ground or airborne campaign. Another advantage of the lamp over the integrating sphere is its ability to create a continuous calibration curve at the spectrometer resolution, while the integrating sphere is calibrated only for a few discrete wavelengths. A calibrated lamp could also be used for a secondary continuous calibration of an un-calibrated integrating sphere.
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Keywords:
field spectroscopy; radiometric calibration; ASD; FieldSpec
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MDPI and ACS Style
Rozenstein, O.; Devir, A.; Karnieli, A. In-Field Absolute Calibration of Ground and Airborne VIS-NIR-SWIR Hyperspectral Point Spectrometers. Remote Sens. 2014, 6, 1158-1170. https://doi.org/10.3390/rs6021158
AMA Style
Rozenstein O, Devir A, Karnieli A. In-Field Absolute Calibration of Ground and Airborne VIS-NIR-SWIR Hyperspectral Point Spectrometers. Remote Sensing. 2014; 6(2):1158-1170. https://doi.org/10.3390/rs6021158
Chicago/Turabian StyleRozenstein, Offer, Adam Devir, and Arnon Karnieli. 2014. "In-Field Absolute Calibration of Ground and Airborne VIS-NIR-SWIR Hyperspectral Point Spectrometers" Remote Sensing 6, no. 2: 1158-1170. https://doi.org/10.3390/rs6021158
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