TCAR - Typhoon Committee

96
ESCAP/WMO
Typhoon Committee Annual Review 2009
- Urban runoff and quality analysis model (Fig.
12)
· Analysis of pollutant conduction with urban
surface runoff, channel and sewer runoff, and
initial overflow;
· Practical model for estimating urban and rural
flood discharge and designing pipe networks.
- Two-dimensional model for computing
vegetative channel in urban rivers (Fig. 13)
· Two-dimensional numerical model for computing
vegetated open channel flow characteristics;
· Feature for estimating longitudinal and lateral
flow characteristics at vegetated open channels;
· Feature for assessing water facilities with
vegetation effects in flood plain planning and
utilization.
- Operation of rainfall pumping station program
(Fig. 14)
· Prediction of variation in the real-time internal
drainage stage and detention basin stage using
rainfall and geographic parameters;
· Operating model(automatic) for the rainfall
pumping station;
· Enables selection of pump operation rules
according to the detention basin area, pump
capacity, watershed area, basin slope, etc.
- Short-time rainfall prediction model with
weather radar (Fig. 15)
· Predicts short-time rainfall variation by
computing cloud migration direction and velocity;
· Complements short-time rainfall prediction with
numerical weather prediction;
· Uses input data for rainfall runoff analysis.
- Urban basin rainfall forecasting model (Fig. 15)
· Rainfall forecast at 30-minute intervals with
up to a 4-hour lead time using weather radar
reflectance and radar precipitation;
· Detects local heavy rain and migration of rainfall
that is hard to observe by point rainfall station,
using high-resolution weather radar data and
space-time analysis capacity;
· Urban flood forecasting and warning and basic
rainfall analysis data using flood discharge
estimation.
Fig. 11. Regional Rainfall Frequency Analysis
Fig. 12. Urban runoff and quality analysis