AIR Worldwide's insured loss estimates assume that an insurance penetration of three per cent for residential lines, 20 per cent for commercial, and 30 per cent for industrial segments, the Boston-based catastrophe modeller said in a statement today.
The range in the modelled insured losses reflects uncertainty in the meteorological parameters associated with the event. For insured loss estimation, there is additional uncertainty in the take-up rates (insurance penetration) in the country.
"The very severe Cyclone Hudhud made its landfall on October 12, near Vizag with maximum sustained winds of 87 knots, according to the India Meteorological Department," AIR Worldwide Assistant Vice President and Senior Principal Scientist Peter Sousounis said in the statement.
A crucial component of providing an accurate insured loss estimate is ascertaining the storm's exact strength at landfall. However, this is challenging, because there are discrepancies in the storm's reported intensity from various agencies due to satellite-based algorithms, parameter estimation and averaging times, AIR Worldwide said.
To estimate insured losses due to Cyclone Hudhud, AIR Worldwide used track information from the IMD and a formula derived for North Indian Ocean basin tropical cyclones, which relates central pressure to maximum gradient wind speed. This formula is a justifiable choice since central pressure is a more reliable parameter than wind speed for estimating storm intensity, as barometers are much more durable than anemometers, the statement said.