Fundamental Study on Optimal Distribution of Rain-Gauge Network Forcus on the Uneven Spatial Distribution of Precipitation Data and Its Dominant Area Using the Frontal Rainfall Distribution

Key Points

• This research aims to evaluate the spatial uncertainty of precipitation data and determine optimal conditions for a ground rain-gauge network.
• Focused on the Onaga River basin.
• Utilized radar and AMEDAS analysis for precipitation data.
• Assessed spatial uncertainty in area precipitation.
• Calculated ground rainfall that aligns with radar-derived area rainfall.
• Identified optimal spatial conditions for a rain-gauge network.
• Maintained spatial quality of precipitation data.
• Balanced monitoring efficiency with cost considerations.