Global warming is already having a negative impact on vital sectors on which human development depends, such as water resource availability. In this study, the changes and abrupt change timing of climatic extreme indices, aridity and drought over the Region of South Aegean are captured using the Mann–Kendall and Pettitt tests, while the latter variables are correlated with the water volume transported by ships to the region as well as the relevant costs. The region's climate is shifting to warmer conditions with less precipitation, since significantly positive trends were noted with regard to the number of tropical nights, warm nights, warm days, the warm spell duration index and the diurnal temperature range; significant negative trends were observed in relation to the number of cool nights, cool days and the cold spell duration index, with the change-point year for the latter variables being 2006. Inaddition, 7/11 precipitation related indices exhibited a downward trend, while significantly negative trends were observed with regard to the number of consecutive dry days, with the timing of the abrupt change being 2001. The Aridity Index (AI) reveals that the region’s climate characterization is changing from dry and sub-humid to semi-arid conditions, whilst the Reconnaissance Drought Index standardized (RDI_st) and the Standardized Precipitation Index (SPI) indices suggests an amplification of drought phenomena over the Region. The tourism variables illustrated a significant positive trend, with the timing of the abrupt change being registered during 2006–2009, whilst the correlation analysis between tourism variables and water transfers implies that the surge on water transfer by ships to the Region occurred between 1998 and 2008. This can be mainly attributed to the changes in climate patterns. The correlation analysis documents a strong positive correlation between the water transfer dataset and the diurnal temperature range, and a moderately negative association with the precipitation related indices, annual precipitation, drought phenomena and aridity with 7/11.

全球变暖已经对人类发展所依赖的重要部门产生了负面影响，例如水资源的可用性。本研究采用 Mann-Kendall 和 Pettitt 检验捕获南爱琴海地区气候极端指数、干旱和干旱的变化和突变时间，而后者变量与船舶运往海洋的水量相关。地区以及相关费用。该区域的气候正在向降水量减少的温暖条件转变，因为在热带夜数、暖夜、暖日、暖期持续时间指数和昼夜温度范围方面出现了显着的积极趋势；在凉爽的夜晚、凉爽的日子和寒潮持续时间指数方面观察到了显着的负面趋势，_st ) 和标准化降水指数 (SPI) 指数表明该地区干旱现象的扩大。旅游变量呈现出显着的正趋势，突变发生的时间出现在 2006 年至 2009 年期间，而旅游变量与调水之间的相关性分析表明，船舶向该地区调水的激增发生在 1998 年至 2008 年期间. 这可以主要归因于气候模式的变化。相关性分析表明，调水数据集与昼夜温差呈强正相关，与降水相关指数、年降水量、干旱现象和干旱度呈中度负相关，7/11。