This study analyzed the peak time of drought severity and drought period using meteorological and hydrological drought indices.
Standardized Precipitation Index (SPI) using rainfall data was used for meteorological drought and Streamflow Drought Index (SDI) and
Standardized Streamflow Index (SSI) using streamflow data were used for the hydrological drought. This study was applied to the
Cheongmicheon watershed which is a mixture area for rural and urban regions. The rainfall data period used in this study is 32.5 years
(January of 1985~June of 2017) and the corresponding streamflow was simulated using SWAT. After the drought indices were calculated
using the collected data, the characteristics of drought were analyzed by time series distribution of the calculated drought indices. Based
on the results of the this study, it can be seen that hydrological drought occurs after meteorological drought. The difference between SDI
and SPI peak occurrence time, difference in drought start date and average drought duration is greater than SSI and SPI. In general, SSI
shows more severe than SDI. Therefore, various drought indices should be used at the identification of drought characteristics.