DefinePK

Abstract

The utilization of water for various purposes continues to increase from year to year as a result of the rapid rate of population growth and the development of human activities. The availability of water decreases and even tends to be increasingly scarce, mainly due to the decrease in environmental quality and quality due to pollution as a result of climate change. This research was conducted to determine and identify the dangers of climate change to the water sector that occurs in the Dolago Watershed. The analytical method used is Penman Monteith's evapotranspiration, water balance analysis of the F.J Mock model, climate change detection and projection using the Makesens model, Cumulative Distribution Frequency (CDF) statistical analysis and weighting of hazard levels. The data used in the form of rainfall data from the Dolago Dam and Dolago Padang rain stations in 1993-2018 (26 years) and Olaya Station climatology data in 1993-2018 (26 years). The results showed that climate change had occurred in the Dolago watershed, which was marked by the value of Z ? 0. There was a very high decrease in water availability for all periods except the 2013-2022 periods which was classified as moderate. Potential flood hazards increase for each decade. Drought has occurred for all periods with very high potential. With climate change occurring at the study site, there will be a significant potential for drought in the dry season and a potential flood hazard that continues to increase throughout the year.