Accumulated cyclone energy (ACE) is the indicator that measures the energy of a hurricane during its lifetime since the central wind speed is 35 knots onwards and is based on arithmetic, which is the sum of squared maximum velocity per 6 hours of cyclone life and its unit knots ^ 2 - The speed is measured by the method of wind rate in one minute - the method of the American Center for Hurricane Control - and this indicator is fair in terms of describing the energy of the hurricane, whatever the wind it reached, for example, the cumulative energy of a hurricane of 140 knots and a lifetime of 5 days with a hurricane maximum speed He scored 120 knots but his lifetime reached 9 For example, the indicator does not describe the amount of rainfall, floods, or even its volume, but the energy it produces through its movement. The indicator has a direct correlation with kinetic energy - the square of speed - and the index is also useful in calculating the ACE during a whole season by adding all values to each. Hurricanes formed during that season
Kiar is the most powerful cyclone to have recorded a drop in surface pressure values of 915 millibars according to the British meteorology and the second strongest hurricane in terms of the intensity of wind in half with cyclone Shabala after reaching 135 knots on the evening of October 27, 2019, but no one mentioned about this indicator, which was amended by the fact that Kiar A hurricane in the Arabian Sea maintained its central rotation speed above the fourth degree for 66 consecutive hours or 2.75 days after surpassing Chapala, which retained its 48-hour or two-day number, and as ACE relies mainly on total energy for every 6 hours, this province For speed in Kiar helped him to surpass the number Chabala with 24.405, followed by Chabala with 23.4275 and the question that many people ask, where is Cyclone Gonu of all this is the strongest cyclone in terms of wind speed, which reached 140 knots.?, Answer that Gonu, although it reached this speed, but the life was not long and could not maintain On the strength for a longer period, especially as he entered the land early and developed to severe cyclonic stages, which is the middle of the sea, unlike Kiar, which reached the fourth degree before arriving in the middle of the Arabian Sea, in addition to that he did not enter the land so he remained active for a longer time as well as the case with Shabala. 17.6776 which is the third order After the above - mentioned.
We note that the total cumulative ACE hurricanes for the 2019 season on the Arabian Sea is the highest since recording began according to Indian meteorological sources as the season contained four consecutive tropical cyclones, started by Vaio and then Kiar V Hika followed by Kiar and now tropical cyclone Maha is likely to reach class Third according to many hurricane forecasting centers will increase the ACE rate
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