@article{oai:nagoya.repo.nii.ac.jp:00019603, author = {鎌田, 哲夫 and 中島, 淳 and KAMADA, Tetsuo and NAKAJIMA, Jun}, issue = {2}, journal = {空電研究所報告}, month = {Mar}, note = {In the preceding paper (Vol.3. No.1-2.), both seasonal and unseasonal origins of atmospherics were discussed using records of the direction of atmospherics arrived. In this paper we described mainly the seasonal variations of the direction of arrival using the records which were made between July, 1952 and December, 1953. The monthly averaged arrival frequency diagrams suggested the facts that the period showing the seasonal peculiarity to the sources of seasonal atmospherics during one season is about two months. Consequently, we have taken two months as the unit of seasonal type and have proposed the existance of a non-commital months too.}, pages = {110--117}, title = {豊川における受信空電方位について (第2報)}, volume = {4}, year = {1954} }