Abstract
Recognizing hydro-meteorological trends and monitoring drought are crucial for evaluating climate change and variability at basin and regional levels. In this Study,The Standard Precipitation Index (SPI) was used to assess drought in the Murat River Basin, analyzing monthly data from seventeen stations over various time periods. Wallis and Moore's test was used to analyze the homogeneity of the obtained monthly data from 17 rainfall stations and 18 temperature stations ,while Mann-Kendal tests were used to assess trends. The study analyzing data from 17 meteorological stations in the Murat River Basin found a lack of rainfall and severe droughts in 2014 and 2018. The Mann-Kendall test showed a decreasing trend in monthly precipitation data from 17 stations. Temperature data from 18 stations showed a rising trend, except for station 4025, with most showing a rise. The study suggests that rising temperatures and decreasing precipitation will lead to a decline in water supply in the future, affecting socioeconomic life by reducing water resources and soil moisture.
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