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Sustainability 2017, 9(12), 2337; doi:10.3390/su9122337

Variability of Temperature and Its Impact on Reference Evapotranspiration: The Test Case of the Apulia Region (Southern Italy)

1
Regional Commissionership of Agricultural Development, 4200 Kebili, Tunisia
2
School of Engineering, University of Basilicata, 85100 Potenza, Italy
3
Mediterranean Agronomic Institute of Bari, CIHEAM Bari, Land and Water Division, 70010 Valenzano, Italy
4
CMCC—Euro-Mediterranean Center on Climate Change, 73100 Lecce, Italy
*
Author to whom correspondence should be addressed.
Received: 21 October 2017 / Revised: 1 December 2017 / Accepted: 12 December 2017 / Published: 15 December 2017
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Abstract

The present study provides an assessment of the climate variability at a subnational scale, focusing on the case of the Apulia region, in Southeastern Italy. The variables considered for the purpose of a trend analysis were the minimum, maximum, and mean temperatures, and reference evapotranspiration. These are very important in an urban–rural planning context. The study was based on 38 monitoring stations and consisted in the application of the nonparametric Mann–Kendall test and a progressive trend analysis, both used to detect the changes. The 1950–2003 period was investigated on seasonal and annual scales. The results generally showed a warming process and an acceleration of the atmospheric evaporative demand which took place especially since the mid-1970s. The latter had a significant positive trend, while the period before the break point of the 70s had a cooling effect. Finally, the warming effect was more pronounced for minimum temperatures. View Full-Text
Keywords: climate variability; evapotranspiration; Mann–Kendall test; seasonality; urban-rural policies; trend analysis climate variability; evapotranspiration; Mann–Kendall test; seasonality; urban-rural policies; trend analysis
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Elferchichi, A.; Giorgio, G.A.; Lamaddalena, N.; Ragosta, M.; Telesca, V. Variability of Temperature and Its Impact on Reference Evapotranspiration: The Test Case of the Apulia Region (Southern Italy). Sustainability 2017, 9, 2337.

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