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Open AccessArticle

WhiteRef: A New Tower-Based Hyperspectral System for Continuous Reflectance Measurements

1
Sustainable Agro-Ecosystems and Bioresources Department, Research and Innovation Centre—Fondazione Edmund Mach, Via E. Mach 1, 38010 S. Michele all'Adige (TN), Italy
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Meteorology Department—Poznan University of Life Sciences, Piatkowska Street 94, 60-649 Poznan, Poland
3
Foxlab Joint CNR-FEM Initiative, Via E. Mach 1, 38010 S. Michele all'Adige (TN), Italy
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Institute of Biometeorology, CNR, 50145 Firenze, Italy
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NERC Field Spectroscopy Facility, School of Geosciences, University of Edinburgh, EH9 3JW Edinburgh, UK
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Institute of Ecology—University of Innsbruck, Innsbruck A-6020, Austria
*
Author to whom correspondence should be addressed.
Sensors 2015, 15(1), 1088-1105; https://doi.org/10.3390/s150101088
Received: 31 October 2014 / Accepted: 30 December 2014 / Published: 8 January 2015
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Italy 2014)
Proximal sensing is fundamental to monitor the spatial and seasonal dynamics of ecosystems and can be considered as a crucial validation tool to upscale in situ observations to the satellite level. Linking hyperspectral remote sensing with carbon fluxes and biophysical parameters is critical to allow the exploitation of spatial and temporal extensive information for validating model simulations at different scales. In this study, we present the WhiteRef, a new hyperspectral system designed as a direct result of the needs identified during the EUROSPEC ES0903 Cost Action, and developed by Fondazione Edmund Mach and the Institute of Biometeorology, CNR, Italy. The system is based on the ASD FieldSpec Pro spectroradiometer and was designed to acquire continuous radiometric measurements at the Eddy Covariance (EC) towers and to fill a gap in the scientific community: in fact, no system for continuous spectral measurements in the Short Wave Infrared was tested before at the EC sites. The paper illustrates the functioning of the WhiteRef and describes its main advantages and disadvantages. The WhiteRef system, being based on a robust and high quality commercially available instrument, has a clear potential for unattended continuous measurements aiming at the validation of satellites’ vegetation products. View Full-Text
Keywords: hyperspectral system; proximal sensing; biophysical parameters; carbon fluxes; validation hyperspectral system; proximal sensing; biophysical parameters; carbon fluxes; validation
MDPI and ACS Style

Sakowska, K.; Gianelle, D.; Zaldei, A.; MacArthur, A.; Carotenuto, F.; Miglietta, F.; Zampedri, R.; Cavagna, M.; Vescovo, L. WhiteRef: A New Tower-Based Hyperspectral System for Continuous Reflectance Measurements. Sensors 2015, 15, 1088-1105.

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