Recent analysis of INSAT-3DR satellite images showed that nearly 60–70% of India’s landmass was under cloud cover. This topic is relevant for aspirants preparing for GS3 Environment and Disaster Management through ias coaching in Hyderabad.
About INSAT-3DR
- Developed by ISRO as part of the Indian National Satellite series.
- Launched on 8 September 2016 aboard GSLV-F05.
- Designed to improve weather forecasting, cyclone tracking, disaster warnings, and environmental monitoring.
- Provides half-hourly multispectral images from a geostationary orbit over India.
Key Features
- Equipped with an Imaging System and Atmospheric Sounder.
- Carries Data Relay Transponder and Search & Rescue Transponder for continuity of earlier missions.
- Improvements over INSAT-3D:
- Imaging in middle infrared band → nighttime detection of low clouds and fog.
- Two thermal infrared bands → accurate estimation of Sea Surface Temperature (SST).
- Higher spatial resolution in visible and thermal infrared bands.
Significance
- Enhances cyclone monitoring in the Bay of Bengal and Arabian Sea.
- Supports disaster management authorities with real-time data.
- Assists agriculture by tracking monsoon patterns and rainfall distribution.
- Strengthens India’s space-based meteorological infrastructure, aligning with global standards.
- Example: During Cyclone Fani (2019), INSAT-3DR data was used for early warnings, reducing casualties.
Conclusion
INSAT-3DR strengthens India’s ability to predict, prepare, and protect against extreme weather events, making it a cornerstone of national disaster resilience.
