INSAT-3DR : In News
An analysis of the visible satellite image and the INSAT-3DR infrared image, captured recently, suggests that roughly 60 to 70 percent of India’s landmass is under cloud cover.
- INSAT-3DR (Indian National Satellite-3DR) is an advanced meteorological satellite developed by ISRO.
- Objective is to iprove weather forecasting, cyclone tracking, disaster warning, and environmental monitoring over India and the surrounding region.
- It was launched aboard the GSLV-F05 launch vehicle.
- It is configured with an Imaging System, and an Atmospheric Sounder.
- Like its predecessor INSAT-3D, INSAT-3DR carries a Data Relay Transponder as well as a Search and Rescue Transponder.
- Thus, INSAT-3DR will provide service continuity to earlier meteorological missions of ISRO and further augment the capability to provide various meteorological as well as search and rescue services.
- It provides half-hourly multispectral images over the Indian region from a geostationary position.
- The significant improvements incorporated in INSAT-3DR are:
- Imaging in the middle infrared band to provide nighttime pictures of low clouds and fog.
- Imaging in two thermal infrared bands for estimation of Sea Surface Temperature (SST) with better accuracy.
- Higher spatial resolution in the Visible and Thermal Infrared bands.
