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In-Field Absolute Calibration of Ground and Airborne VIS-NIR-SWIR Hyperspectral Point Spectrometers

The Remote Sensing Laboratory, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boker Campus 84990, Israel
IARD Sensing Solutions Ltd., Kibbutz Yagur, 30065, Israel
Author to whom correspondence should be addressed.
Remote Sens. 2014, 6(2), 1158-1170;
Received: 18 December 2013 / Revised: 20 January 2014 / Accepted: 23 January 2014 / Published: 29 January 2014
PDF [698 KB, uploaded 19 June 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. View Full-Text
Keywords: field spectroscopy; radiometric calibration; ASD; FieldSpec field spectroscopy; radiometric calibration; ASD; FieldSpec
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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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.

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