Debris Flows
Episode 6 · 2021-07-10
- Documentary
Episode overview
An increase in heavy rainfall in recent years has made debris flows a frequent problem in Japan. We'll look at research underway to help with their early detection and explore ways to protect lives.In recent years, debris flows have become more frequent in Japan due to an increase in heavy rainfall. Given that about 70% of Japan's land area is covered by mountains and forests, they have become a significant issue. After large-scale debris flows struck parts of Hiroshima Prefecture in 2014 and 2018, scientists found that debris flows tend to start out small and then repeatedly recur, causing significant damage. Research is now underway to determine the locations where debris flows are likely to occur based on topographical and geological data, and install sensors that can detect the very first debris flow. Information from these sensors can then help residents evacuate as quickly as possible. In this program, we'll introduce the latest research to save lives from debris flows.
15 minutes
Season 1 episodes
1. Tsunami2020-05-01
2. Urban Flooding2020-09-05
3. Urban Windstorms2021-01-11
4. Long-period Ground Motion and A New Threat2021-01-31
5. Localized Torrential Rain2021-06-19
6. Debris Flows2021-07-10
7. Mt. Fuji's Threat to Tokyo2021-07-17
8. Heatstroke2021-08-28
9. Home Flooding2021-11-06
10. Tornadoes2021-11-13
11. Post-earthquake Fire2021-12-04
12. Avalanches2022-01-15
13. Lightning2022-02-05
14. Soil Liquefaction2022-02-12
15. PM2.52022-03-05
16. Tsunami Prediction2022-03-12
17. Human Stampede2022-05-21
18. Disaster Response Robots2022-06-04
19. Phreatic Eruptions2022-08-06
20. Linear Rainbands2022-08-13
21. Road Cave-ins2022-10-01
22. Solar Flares2022-10-22
23. Typhoon Forecasting2022-12-03
24. Storm Surges2022-12-24
25. Heavy Snow2023-02-11
26. Landslides2023-02-18
27. Quake-resistant Skyscrapers2023-03-11
28. Tsunami Observation2023-03-18
29. River Flooding2023-03-25
30. Fire Tornadoes2023-06-24
31. Lava Flows2023-07-29
32. Large-Scale Blackouts2023-08-26
33. Active Faults2023-09-30
34. Ensuring a Safe Journey in Japan2023-10-28
35. Droughts2023-11-18
36. Wildfires2023-12-23
37. Tokyo Metropolis2024-01-13
38. Osaka Metropolis2024-01-20
39. Emergency Food2024-03-02
40. Tsunami Evacuation2024-03-16
41. How to Survive an Earthquake2024-04-20
42. How to Survive a Flood2024-05-18
43. Drone Disaster Management2024-06-08
44. Send in the Robot Fire Brigade!2024-07-13
45. Safety Tips for Hiking in Japan2024-09-14
46. Digital Twin2024-09-28
47. Scientists on a Quest to Control Typhoons2024-11-02
48. Uncovering the Mysteries of Winter Lightning2024-12-28
49. Phase Free - Disaster Preparedness in Everyday Life2025-01-25
50. For Safe Travel Through Snowy Regions2025-02-22
51. Japan Self-Defense Forces Disaster Prevention2025-03-15
52. Sendai Metropolis2025-03-29
53. Metropolis Tokyo Shibuya2025-04-26
54. How Tokyo Skytree Deals with Disaster2025-06-21
55. Disaster Preparedness for Companion Animals2025-07-26
56. Kyoto2025-08-23
57. Preventing Marine Disasters2025-08-30
58. Large-Scale Logistics Facilities2025-11-22
59. Immersive Disaster Preparedness Training2025-12-20
60. Disaster Preparedness from Space2026-01-03
61. Nankai Trough Megaquake2026-01-24
62. Protecting Cultural Properties from Disaster2026-02-07
63. The Evolution of Volcanic Disaster Prediction Technology2026-02-14
64. Reducing the Danger from Bear Encounters2026-02-21
65. Extensive Underground Infrastructure2026-04-25
66. Disaster Response Robots2026-06-20
67. Upgrading Dams for a Changing Climate2026-07-18
68. Disaster Preparedness for Agricultural Infrastructure2026-10-31
