an investigation of afro-eurasia precipitation anomalies in relation to climate change

changes in precipitation will be one of the most critical factors determining the overall impact of climate change. spatial-temporal variations in rainfall affected runoff, soil moisture, and underground water reserves. the analysis of precipitation trend is important in climate-change studies for planning and effective water resource management. in this study, long-term annual and seasonal trends of precipitation were identified for region 15° w to 135° e over period of 1982-2016 using chirps precipitation data. the statistical significance of trends is assessed by the mann-kendall test. our target in this research is to investigate the trend of precipitation and to know how it changes during the study period.