CWEEE  Vol.10 No.2 , April 2021
Site and Regional Trend Analysis of Precipitation in Central Macedonia, Greece
Abstract: The purpose of this paper is to investigate the trend of precipitation in Kilkis region (Greece) at the site and regional level in various time scales. At the site level, the precipitation trend was analyzed using three tests: 1) Mann-Kendall, 2) Sen’s T and 3) Spearman while the trend slope was estimated using the Sen’s estimator. At a regional level, nonparametric spatial tests such as Regional Average Mann-Kendall (RAMK) and BECD’s (Bootstrap Empirical Cumulative Distributions) were elaborated with and without the effect of cross correlation. The trend of precipitation was noticed generally downward at annual time scale and statistically significant at 5% level of significance only in only one station. The results of the analysis of trends at the regional level showed in total the influence of cross correlation in the time series since the number of trends detected is reduced when cross correlation is preserved. Precipitation data from 12 stations were used. The study results benefit water resource management, drought mitigation, socio-economic development, and sustainable agricultural planning in the region.
Cite this paper: Margaritidis, A. (2021) Site and Regional Trend Analysis of Precipitation in Central Macedonia, Greece. Computational Water, Energy, and Environmental Engineering, 10, 49-70. doi: 10.4236/cweee.2021.102004.

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