Remote Sens. 2012, 4(12), 3995-4009; doi:10.3390/rs4123995
Article

A Hyperspectral Thermal Infrared Imaging Instrument for Natural Resources Applications

Martin Schlerf 1,* email, Gilles Rock 2 email, Philippe Lagueux 3 email, Franz Ronellenfitsch 1 email, Max Gerhards 2 email, Lucien Hoffmann 1 email and Thomas Udelhoven 1,2 email
1 Environnement et Agro-biotechnologies, Centre de Recherche Public-Gabriel Lippmann, 41 Rue du Brill, L-4422 Belvaux, Luxembourg 2 Remote Sensing & Geoinformatics Department, Faculty of Geography and Geosciences, University of Trier, Behringstrasse, D-54286 Trier, Germany 3 Telops, 2600 Av. St. Jean Baptiste, Quebec City, QC G2E 6J5, Canada
* Author to whom correspondence should be addressed.
Received: 15 September 2012; in revised form: 3 December 2012 / Accepted: 4 December 2012 / Published: 14 December 2012
(This article belongs to the Special Issue Thermal Remote Sensing Applications: Present Status and Future Possibilities)
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Abstract: A new instrument has been setup at the Centre de Recherche Public-Gabriel Lippmann to measure spectral emissivity values of typical earth surface samples in the 8 to 12 μm range at a spectral resolution of up to 0.25 cm−1. The instrument is based on a Hyper-Cam-LW built by Telops with a modified fore-optic for vertical measurements at ground level and a platform for airborne acquisitions. A processing chain has been developed to convert calibrated radiances into emissivity spectra. Repeat measurements taken on samples of sandstone show a high repeatability of the system with a wavelength dependent standard deviation of less than 0.01 (1.25% of the mean emissivity). Evaluation of retrieved emissivity spectra indicates good agreement with reference measurements. The new instrument facilitates the assessment of the spatial variability of emissivity spectra of material surfaces—at present still largely unknown—at various scales from ground and airborne platforms and thus will provide new opportunities in environmental remote sensing.
Keywords: hyperspectral; thermal; long wave; emissivity; imaging spectrometry; sandstone; quartz

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Cite This Article

MDPI and ACS Style

Schlerf, M.; Rock, G.; Lagueux, P.; Ronellenfitsch, F.; Gerhards, M.; Hoffmann, L.; Udelhoven, T. A Hyperspectral Thermal Infrared Imaging Instrument for Natural Resources Applications. Remote Sens. 2012, 4, 3995-4009.

AMA Style

Schlerf M, Rock G, Lagueux P, Ronellenfitsch F, Gerhards M, Hoffmann L, Udelhoven T. A Hyperspectral Thermal Infrared Imaging Instrument for Natural Resources Applications. Remote Sensing. 2012; 4(12):3995-4009.

Chicago/Turabian Style

Schlerf, Martin; Rock, Gilles; Lagueux, Philippe; Ronellenfitsch, Franz; Gerhards, Max; Hoffmann, Lucien; Udelhoven, Thomas. 2012. "A Hyperspectral Thermal Infrared Imaging Instrument for Natural Resources Applications." Remote Sens. 4, no. 12: 3995-4009.

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