 This rate of energy release is equivalent to 70 times the world energy consumption of humans and 200 times the worldwide electrical generating capacity, or to exploding a 10-megaton nuclear bomb every 20 minutes.The primary rotating flow in a tropical cyclone results from the conservation of angular momentum by the secondary circulation.Absolute angular momentum on a rotating planet formula_1 is given by

where formula_3 is the Coriolis parameter, formula_4 is the azimuthal (i.e.