Prelims · 4 Indian Geography · 4.11 Natural hazards and disaster management

4.11.9 Remote sensing and GIS in disaster assessment: NRSC, Bhuvan, NDEM, damage mapping and early warning uses

Satellites see a disaster area from above before, during and after an event, and GIS combines those images with maps of people, roads and buildings, so planners can map risk, warn early, and measure damage quickly; in India this work is led by ISRO's National Remote Sensing Centre (NRSC), Hyderabad.

  • APPSC Group 2 · Prelims
  • Standard level
  • 7 min read
  • Full course

Key terms

  • remote sensing
  • GIS
  • synthetic aperture radar
  • optical sensor
  • NRSC
  • Bhuvan
  • NDEM
  • MOSDAC
  • Disaster Management Support Programme
  • damage assessment
  • change detection
  • flood inundation mapping
  • Landslide Atlas of India
  • NISAR
  • EOS-04
  • International Charter Space and Major Disasters
  • Sentinel Asia
  • NavIC

What this note covers

  1. Core factsFoundation
  2. ExplainedStandard
  3. DeeperAdvanced
  4. AP angleStandard
  5. Mains writingMains writing
  6. Common trapsFoundation
  7. Quick revisionFoundation

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