1. The Challenge of Tropical Rainfall
Accurate quantitative rainfall prediction at high temporal and spatial resolution is vital for flood management and daily drainage operations at PUB.
- Localized Storms: In Singapore, convective storms are common, highly volatile, and typically affect very localized areas.
- Observational Limits: Traditional weather radar and sparse physical rain gauges often miss hyper-local downpours or lack the temporal frequency needed for fast-moving tropical weather.
2. High-Resolution X-Band Radar Solution
To overcome these monitoring gaps, H2i implemented a high-resolution rainfall detection and forecasting system based on state-of-the-art X-band weather radar technology.
🎥 Watch CNA Report on PUB Flash Flood Radar Technology
- Compact & Efficient: X-band radars are compact, cost-effective, and energy-efficient compared to conventional C-band or S-band radars.
- Near Real-Time Data: Operates at high scanning frequencies to deliver granular, near real-time rainfall intensity maps.
- Collaborative Development: Developed in partnership with weather radar specialists from Furuno, the project ran from June 2016 through successful completion in March 2019.
3. Commercial Scalability Across Asia
The success of the Singapore deployment serves as a proven blueprint for smart urban water management across the region.
- Asian Urban Centers: The system provides a commercial-ready framework for flood-prone cities in Asia facing similar tropical climate challenges.
- Operational Integration: Feeds directly into municipal control centers to support automated nowcasting, rapid warning dispatch, and proactive flood response.
4. Conclusion & Key Takeaways
Conclusion
By combining compact X-band radar technology with customized nowcasting models, H2i and PUB established an essential foundation for high-resolution urban flood management. Completed in March 2019, this joint initiative demonstrates how cost-effective radar networks can close spatial observation gaps and safeguard densely populated tropical cities.
Key Takeaways
- Tailored for Tropical Storms: Solves the challenge of tracking hyper-local, fast-changing convective downpours across Singapore.
- Cost-Effective Infrastructure: Utilizes compact, energy-efficient X-band radars provided by Furuno.
- Operational Blueprint: Serves as a proven, scalable model for smart city flood management across Asian urban centers.
