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Sensors 2017, 17(11), 2664; doi:10.3390/s17112664

Assessing Crop Coefficients for Natural Vegetated Areas Using Satellite Data and Eddy Covariance Stations

1
Department of Civil and Environmental Engineering, Politecnico di Milano, Piazza Leonardo da Vinci, 32, 20133 Milan, Italy
2
Environmental Protection Agency of Aosta Valley, Climate Change Unit, 11100 Aosta, Italy
*
Author to whom correspondence should be addressed.
Received: 30 September 2017 / Revised: 7 November 2017 / Accepted: 9 November 2017 / Published: 18 November 2017
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Abstract

The Food and Agricultural Organization (FAO) method for potential evapotranspiration assessment is based on the crop coefficient, which allows one to relate the reference evapotranspiration of well irrigated grass to the potential evapotranspiration of specific crops. The method was originally developed for cultivated species based on lysimeter measurements of potential evapotranspiration. Not many applications to natural vegetated areas exist due to the lack of available data for these species. In this paper we investigate the potential of using evapotranspiration measurements acquired by micrometeorological stations for the definition of crop coefficient functions of natural vegetated areas and extrapolation to ungauged sites through remotely sensed data. Pastures, deciduous and evergreen forests have been considered and lower crop coefficient values are found with respect to FAO data. View Full-Text
Keywords: crop coefficient; natural vegetated area; satellite data; eddy covariance stations crop coefficient; natural vegetated area; satellite data; eddy covariance stations
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Corbari, C.; Ravazzani, G.; Galvagno, M.; Cremonese, E.; Mancini, M. Assessing Crop Coefficients for Natural Vegetated Areas Using Satellite Data and Eddy Covariance Stations. Sensors 2017, 17, 2664.

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