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Title: Ground-Based Optical Measurements at European Flux Sites: A Review of Methods, Instruments and Current Controversies
Authors: Balzarolo, Manuela
Anderson, Karen
Nichol, Caroline
Rossini, Micol
Vescovo, Loris
Arriga, Nicola
Wohlfahrt, Georg
Calvet, Jean-Christophe
Carrara, Arnaud
Cerasoli, Sofia
Cogliati, Sergio
Daumard, Fabrice
Eklundh, Lars
Elbers, Jan A.
Evrendilek, Fatih
Handcock, Rebecca N.
Kaduk, Jörg
Klumpp, Katja
Longdoz, Bernard
Matteucci, Giorgio
Meroni, Michele
Montagnani, Leonardo
Ourcival, Jean-Marc
Sánchez-Cañete, Enrique P.
Pontailler, Jean-Yves
Juszczak, Radoslaw
Scholes, Bob
Martín, Maria Pilar
First Published: Aug-2011
Publisher: MDPI Publishing
Citation: Sensors 2011, 11(8), pp. 7954-7981.
Abstract: This paper reviews the currently available optical sensors, their limitations and opportunities for deployment at Eddy Covariance (EC) sites in Europe. This review is based on the results obtained from an online survey designed and disseminated by the Co-cooperation in Science and Technology (COST) Action ESO903—“Spectral Sampling Tools for Vegetation Biophysical Parameters and Flux Measurements in Europe” that provided a complete view on spectral sampling activities carried out within the different research teams in European countries. The results have highlighted that a wide variety of optical sensors are in use at flux sites across Europe, and responses further demonstrated that users were not always fully aware of the key issues underpinning repeatability and the reproducibility of their spectral measurements. The key findings of this survey point towards the need for greater awareness of the need for standardisation and development of a common protocol of optical sampling at the European EC sites.
DOI Link: 10.3390/s110807954
eISSN: 1424-8220
Version: Publisher Version
Status: Peer-reviewed
Type: Article
Rights: © 2011 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (
Appears in Collections:Published Articles, Dept. of Geography

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