The underground cathedral protecting Tokyo from floods
10 months ago
- #climate-change
- #flood-defense
- #Tokyo
- Tokyo's Metropolitan Area Outer Underground Discharge Channel (MAOUDC) is a 6.3 km long system of tunnels and chambers designed to protect the city from flooding.
- The system includes a massive underground water tank known as the 'floodwater cathedral,' which can hold and redirect floodwaters to the Edo River.
- Tokyo's flood defenses were developed in response to historical typhoons and floods, such as Typhoon Kathleen in 1947 and Typhoon Kanogawa in the 1950s.
- The MAOUDC, completed in 2006, is the world's largest diversion floodwater facility, capable of pumping 200 tons of water per second.
- Climate change poses new challenges to Tokyo's flood defenses, with predictions of increased rainfall and more intense storms in the future.
- Experts warn that Tokyo may not be fully prepared for the extreme weather events expected due to global warming, with millions at risk in low-lying areas.
- Other major cities like New York, Shanghai, and Bangkok also face increasing flood risks due to climate change, highlighting the need for global attention and adaptation strategies.