@article{oai:nipr.repo.nii.ac.jp:00001074, author = {ナガタ, タケシ and ヒラサワ, タケオ and フクニシ, ヒロシ and アユカワ, マサル and サトウ, ナツオ and フジイ, リョウイチ and カワムラ, マコト and NAGATA, Takesi and HIRASAWA, Takeo and FUKUNISHI, Hiroshi and AYUKAWA, Masaru and SATO, Natsuo and FUJII, Ryoichi and KAWAMURA, Makoto}, journal = {Memoirs of National Institute of Polar Research. Special issue}, month = {Sep}, note = {P(論文), A classification of the ULF-waves in the pc 1 and pi 1 frequency range was attempted on the basis of recent data (1976-78). Referring to the spectral structures of ULF waves, their similarities at the conjugate pair stations, their association with SC and SI events, and the correlations between auroras and VLF, it is shown that pc 1 and pi 1 ULF waves can be classified into six types with nine subclasses, as summarized in Table 1.}, pages = {56--71}, title = {CLASSIFICATION OF Pc 1 AND Pi 1 WAVES OBSERVED IN HIGH LATITUDES}, volume = {16}, year = {1980} }