Spatial-Temporal variability analysis of temperature in two viticulture sites in Spain and Slovenia

Abstract

Objective of this research is to describe and compare the results of climate variables analyzed in two different viticulture sites; indeed, one study site is located in the Valencia wine region in Spain and the other is in the Goriška Brda region in Slovenia. The research includes the climate analysis for a period of five decades in both study sites, from 1965 to 2013, to follow temperature measured daily. In addition, the Huglin and Winkler indexes were calculated in the same research sites for the same time period. The analysis was conducted in four weather stations (two in Spanish site and two in Slovene site). The climate data analysis showed a considerable temporal variability with notable increase of temperatures; indeed, it showed also the significant spatial variability of climatic variables. The continent and sea influence created climate and spatial differences on the both study sites, which are comparable with the climate evolution in the study period. This preliminary work is encouraging and will be further developed. Moreover, the results of this paper will be used to elaborate a climate model for the 2015-2065 period in each site separately. The results of the climate comparison, will give us two different climate models, one for each study site, which will contribute to improve viticulture adaptation in the future.