Abstract
In this report, the anther collected the data observed through the summer season of five months from May to September in thirty one observatory points of Aomori prefecture in 1949, defined the number (in %) of blowing the “1/2(NE+SE)+ENE+ESE+E” wind as the prevailing easterlies, and classified into the three groups by x and s of this prevailing easterlies in these points as shown in fig. 2, and too, described the charasteristics and topographycal region belongs to each group as shown in table 2.
