@article{oai:nagoya.repo.nii.ac.jp:00019593, author = {金原, 淳 and KIMPARA, Atsushi}, issue = {2}, journal = {空電研究所報告}, month = {Mar}, note = {In order to study the change of waveforms of atmospherics with distance, the author discusses the waveforms, observed simultaneously at Toyokawa, Kumamoto and Akita Stations in Japan in 1952. They are classified into 5 groups according to the distance : A. more than 4,000 km; B. 3,000-4,000 km; C. 2,000-3,000 km; D. 1,000-2,000 km and E. less than 1,000 km. The investigation reveals that in A and B the waveforms depend mainly upon the characteristics of trajectories, in D and E upon activities in meteorological phenomena showing varieties so much, and in C nearly equally upon meteorological and propagational conditions. In general, similar waveforms are observed in the distant ones over nearly equal kinds of trajectories, and the strikingly similar ones in the same phenomena at the same place and date. Dependence on the direction of propagation is not yet determined exactly.}, pages = {59--74}, title = {夜間の空電波形 (第2報)}, volume = {4}, year = {1954} }