Figure 2. Location of the study area and a topographic map.
2.2 Study Materials
Table 1 lists information about the study materials. Land use was
classified using survey data from the National Land Surveying and
Mapping Center. Soil maps from the Soil and Water Conservation Bureau
were used to determine the hydrologic soil groups. Furthermore, the
spatial distribution of CN values was estimated using land use and the
hydrologic soil groups. Rainfall, flow rate, and SY data were acquired
from the observational data of the Water Resources Agency, Ministry of
Economic Affairs as a reference for long-term analysis and verification.
In addition, DEM was used to determine the subdivision delineation of
the catchment area.
Table 1. Study
materials.