The variations of the accumulated snow year to year were about periodic. These were found 2, 5 and 17 years as the common periods at all areas of Tohoku district, 7 years at the northern parts and 10 years at the southern parts.
When +areas of monthly mean pressure deviations were very broad over Arcticsea and Siberia and there were -areas over North Japan and Aleutian ; accumulated snow were deeper, vis-a-vis.
抄録全体を表示