Disasters and Disaster Management – Sendai Framework, Floods, Cyclones, etc.

IIT-D develops India’s first National Landslide Susceptibility Map

Note4Students

From UPSC perspective, the following things are important :

Prelims level: National Landslide Susceptibility Map

Mains level: Read the attached story

Introduction

  • In the wake of severe monsoon-triggered landslides, IIT Delhi has developed its first National Landslide Susceptibility Map.

About National Landslide Susceptibility Map

  • High-Resolution Mapping: The map offers a detailed (100 sq. m resolution) overview of landslide susceptibility across India, including previously unrecognized areas.
  • Revealing New Risk Zones: It highlights traditional high-risk areas and uncovers new regions of concern, broadening the scope of landslide monitoring.
  • Innovative Analysis Method: An ensemble machine learning approach was utilized to enhance prediction accuracy and address data gaps in uncharted regions.
  • Advantages of Ensemble Models: This method effectively combines multiple models to provide a more reliable estimation of landslide risks.

Data Gathering and Analytical Process

  • Extensive Data Compilation: Researchers collated data on around 150,000 landslide incidents from various sources, including the Geological Survey of India.
  • Identifying Contributing Factors: The team pinpointed 16 critical factors influencing landslide susceptibility, utilizing tools like GeoSadak for remote data collection.

Implications for Disaster Management

  • Tool for Stakeholders: The map serves as a critical resource for government bodies, disaster management authorities, and organizations focused on landslide mitigation.
  • Enhancing Preparedness and Planning: It will facilitate vulnerability assessment, infrastructure planning, and implementation of mitigation measures.

Need for such map

  • Persistent Hazard: Landslides, affecting a small but significant portion of India, pose a recurrent threat, especially in hilly regions.
  • Challenges in Management: The localized and sporadic nature of landslides has historically hindered effective tracking and prediction, underscoring the need for a comprehensive mapping solution.

Future Directions and Public Accessibility

  • Developing an Early Warning System: Building on the map, efforts are underway to create a comprehensive Landslide Early Warning System.
  • Infrastructure Vulnerability Cartogram: A cartogram to identify susceptible infrastructure is also in progress.
  • Public Access and Engagement: The map and its data will be accessible through a web interface, promoting public interaction and awareness.

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