Cyclone Dana
Published on 05 Mar 2025
• Cyclone Dana hit Odisha’s coast, with its landfall timing and location difficult to predict due to factors like the cyclone’s disorganised structure.
If a cyclone forms from the lower troposphere (0-8 km from sea level) to the upper troposphere then it is well organised and easier to forecast.
• Cyclones in the North Indian Ocean region have been quite uncertain in recent years because of various factors such as rapid intensification (RI).
RI is said to occur when a tropical cyclone gains wind speeds of more than 55 km/ hr in a 24 hour period.
• Divergent predictions stem from limited observational data, especially from the sea surface and subsurface in the Bay of Bengal.
• Satellites like ISRO’s EOS-06 and INSAT-3DR provided crucial data.
• Dana, named by Qatar, means ‘generosity’ in Arabic.
