Trend analysis of rainfall and temperature (1981 – 2020) in the Srepok river basin of Vietnam

Abstract

Climate change is happening on a global scale, altering the climate patterns in various regions worldwide. Among the most affected climate factors are rainfall and temperature, which are of particular concern due to their direct impact on human activities. The Srepok River basin, a major water source for the Central Highlands of Vietnam, has climate factors that are significantly impacted by climate change. Droughts, a common manifestation in the Central Highlands, severely affect the local economy. Therefore, analyzing and evaluating trends in temperature and rainfall is crucial for policymakers to propose effective measures to address the impacts of climate change within the locale. The study examines changes in temperature and rainfall from 1981 to 2020 using methods such as the Mann - Kendall statistical test, Sen's Slope analysis, and ITA trend analysis. Understanding the trends in rainfall and temperature changes can assist managers in developing policies and strategies for sectors affected by climate change.