Statistical Proof of Okada's Law

Abstract

The velocity of motion of the center of each cyclone is measured in a unit of 2° Latitudes or Longitudes of displacement per 6 hours. Following results show mean velocities of cyclones in various situation of cyclones and anticyclones, which appeared in the weather charts for seven years 1919-1925 issued from the Central Meteorological Observatory, Tokyo.
From the above statistics we can draw conclusion that Okada's law is true so far as For Eastern cyclones are concerned.