Comparison of Projection in Meteorological and Hydrological Droughts in the Cheongmicheon Watershed for RCP4.5 and SSP2-4.5

Due to the recent appearance of shares socioeconomic pathway (SSP) scenarios, there have been many studies that compare results between Coupled Model Intercomparison Project (CMIP)5 and CMIP6 general circulation models (GCMs). This study attempted project future drought characteristics in Cheongmicheon watershed using SSP2-4.5 Australian Community Climate Earth System Simulator-coupled model (ACCESS-CM2) addition Representative Concentration Pathway (RCP) 4.5 ACCESS 1-3 same institute. The historical precipitation temperature data ACCESS-CM2 were generated better than those 1-3. Two meteorological indices, namely, Standardized Precipitation Index (SPI) Evapotranspiration (SPEI) used while a hydrological index, Streamflow (SDI), was characteristics. metrological GCMs bias-corrected quantile mapping method streamflow obtained Soil Water Assessment Tool (SWAT) data. As result, large differences occurrences severities RCP4.5 for values SPI, SPEI, SDI. minimum index near (2021–2060) far futures (2061–2100) very small SSP2-4.5, large. In addition, longest period from SDI largest because variation usually affects with lag. Therefore, it concluded is important consider both CMIP5 establishing countermeasures period.