Space Technology for Disaster Management in Ladakh

Why in news

Government of India is utilizing satellite and geospatial technologies for monitoring various environmental and disaster-related aspects in Ladakh, including glaciers, glacial lakes, snowfall, water resources, and landslides.

Exam relevance

GS1, GS3 · Geography, Environment & Ecology, Disaster Management, Science & Technology · Prelims · Mains

Key facts

1. Government of India employs satellite and geospatial technologies for disaster management in Ladakh.
2. A database of over 2,000 glaciers in Ladakh has been created using 2020-23 satellite data.
3. Changes in the extent of over 1,000 glaciers in Ladakh have been mapped over two decades.
4. An inventory of 3,219 glacial lakes (area > 0.25 hectares) has been generated for Ladakh under the National Hydrology Project.
5. Glacial Lake Outburst Floods (GLOF) risk modelling has been performed for high-risk lakes in Ladakh.
6. Daily snow-cover mapping over the Indian Himalaya, including Ladakh, is conducted using satellite data from 2019 to September 2025.
7. 4,912 wetlands in Ladakh have been mapped in collaboration with the University of Jammu.
8. About 41 waterbodies larger than 5.0 hectares in Ladakh are monitored and updated via satellite data through the Bhuvan Waterbody Information System since 2012.
9. ISRO uses satellite data for periodic updates of the landslide inventory in Ladakh.

Prelims pointers

• Satellite and geospatial technologies are used for disaster management in Ladakh.
• Glacier inventory and change mapping are conducted using satellite data.
• National Hydrology Project is involved in glacial lake inventory and GLOF risk modelling.
• Daily snow-cover mapping covers the Indian Himalaya, including Ladakh.
• Wetlands and waterbodies in Ladakh are mapped and monitored using satellite data.
• ISRO updates the landslide inventory in Ladakh using satellite data.

Mains practice question

Discuss the role of space technology and geospatial data in enhancing disaster management capabilities in ecologically sensitive and remote regions like Ladakh. What are the key applications and challenges associated with such initiatives?

Static linkage

The use of space technology for disaster management aligns with India's increasing focus on leveraging advanced scientific capabilities for national security, environmental monitoring, and disaster preparedness. This includes the role of ISRO and various government ministries in utilizing satellite imagery and geospatial data for critical applications.

Significance

The application of satellite and geospatial technologies in Ladakh is crucial for understanding and mitigating risks associated with the region's fragile ecosystem and challenging terrain. Monitoring glaciers and glacial lakes helps in predicting GLOFs, while snow-cover mapping aids in water resource management and avalanche forecasting. Wetland and waterbody mapping supports ecological conservation and resource planning. Landslide monitoring enhances safety in a seismically active and landslide-prone area. This integrated approach provides vital data for informed decision-making by government agencies.