On the topographical deviation of the prevailing easterlies during June in Aomori Prefecture

Abstract

After the former report, I researched on the topographical deviation of prevailing easterlies in Aomori Prefecture during June, 1949 and obtained following results.(1) The mean wind directions (=x) of prevailing eastelies in June at iespctive five Pacific coastal points are almost the east as in table 1.(2) From the wind direction of the inland point corresponding to the coastal base point for the prevailing easterlies (=NE+ENE+E+ESE+SE) calculated by the method in table 2, the two vaules are derived: the standard deviation (=s) of the deviation of winds in angle and the difference of mean wind direction (=x) deviated at the inland point to the coastals as shown in table 3.(3) Making figure 1 with x-difference and s of deviated prevailing easterlies, and comparing the A, B and C groups in the former report, I considered that the prevailing easterlies deviate generally to south on the east side and to north on the west of the backboned mountain system of “Ou”, having probably the largest topographical effect in Aomoti Prefecture, by reason of the easterlies takes a roundabout route of the mountain system as shown in figure 2.(4) The larger the x-difference, the larger the s in general. The points having the larger two values are more apart generally to westward in the inland from the Pacific Coast of Aomori Prefecture.