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Uluslararası Sosyal Araştırmalar Dergisi / Thé Journal of International Social Research became a member of Cross Reff since 2014 and started to assign DOI numbers to the articles. Bu Dergi DOI ve Crosscheck üyesidir


Abstract


DROUGHT ANALYSIS FOR SİVAS PROVINCE USING STANDARDIZED PRECIPITATION INDEX

Drought is a normal and repetitive feature of the climate and occurs in all climatic regions, but its properties vary significantly from region to region. Due to its environmental and socio-economic effects, it is one of the most important natural events to focus on. Central Anatolia region, is one of the sensitive to precipitation changes, including drought conditions in Turkey. In this study, drought events in various time scales (1, 3, 6, 12 months) were examined in Sivas Province in the Central Anatolian region during the period 1964-2018. Standardized Precipitation Index (SPİ) and cumulative deviation curve techniques were used to determine drought conditions. The results revealed that moist and dry periods show a cyclical character in the study area. However, it has recently been determined that dry conditions tend to increase in their frequencies. Analyzes of precipitation series used in this study show that long-term and frequent drought events are encountered for the recording period in which the precipitation characteristics of the region are taken into consideration. It is understood that although there is a slight decrease in annual precipitation totals in a part of the research area, the precipitation pattern has changed. Cumulative deviation and SPİ results reveal that a significant number of arid periods were experienced in Sivas Province in the 1964-2018 period. According to these results, precipitation has decreased in all stations in the last ten years



Keywords
Climate Variability, Drought, Standard Rainfall Index, Sivas



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