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Full Description
Towhata and coauthors draw on their decades of research and innovation to describe an inexpensive and easy to interpret early warning system for rainfall-induced landslides. This system will enable readers to identify slope collapses before they happen and act to prevent economic and human losses.
Readers will gain an understanding of existing slope monitoring technologies and their applications and advantages and disadvantages. They will also understand the need for early warning systems for rapid landslides that are caused by heavy rainfall. Because such landslides are increasing in frequency because of a climate-change-related increase in short-term but heavy rainfall, the authors first review the current context before explaining the importance of field monitoring for their continuing professional career development. The authors describe their technology, which is based on an inexpensive tiltmeter sensor and can detect landslides several hours prior to their onset. It is important that the authors present ample cases in which their technology was able to foresee imminent landslides. This description is supported by in-depth comparisons with other methodologies, field tests, and case studies. Finally, existing problems are introduced and future research directions are presented. This information will enable readers to implement their own system to identify slopes at imminent risk of collapse following rainfall events so that they may take appropriate action to prevent economic damage and loss of life.
This book is an indispensable guide for practitioners in both public and private sectors who are responsible for the implementation of slope monitoring and landslide early warning systems. Postgraduate students who specialize in the mitigation of natural disasters and effects of global climate change will also benefit from the discussions of differing available technologies and case studies.
Contents
1. General Views on Recent Rainfall and Landslide Events 2. Experiences of Rapid Landslide and Debris Flow 3. Social Needs for Disaster Mitigation with Emphasis on Slope Disasters 4. Review of Slope Monitoring Technology 5. Rainfall Criterion for Early Warning 6. Forecasting of Rainfall-Induced Slope Disasters by Ground-Based Tilt Sensors 7. Case Histories of Successful Early Warnings 8. Ground-Based or Air-Borne Imagery Surveys 9. Development of Slope Monitoring System with Residents' Participation 10. New Micromotion and Vibration Monitoring System 11. Scope of DX and Advanced Services 12. Ideas on Future Development of Field Monitoring 13. Conclusion
