@article{oai:nipr.repo.nii.ac.jp:00008115, author = {丸橋, 克英 and 石井, 隆広雄 and MARUHASHI, Katsuhide and ISHI, Takahiroo}, journal = {南極資料}, month = {Feb}, note = {P(論文), 1977年1月から1978年6月までの1年半の期間に起きた磁気嵐に対して,その原因と考えられる太陽フレアおよびコロナホールの対応づけを行った.判定の基準は,(1)太陽面現象と地磁気嵐の時間的関係,(2)太陽風の速度,密度,温度等の変化の特徴,(3)コロナホールの磁場極性と惑星空間の磁場極性の比較,(4)太陽フレアおよび同時に発生する電波現象の特徴による磁気嵐を起こす確率の評価等である.この結果,上記の1年半に起きた44例のDstが-50γを越す磁気嵐のうち40例の原因が推定できた.調査の対象とした期間は,一般には地磁気じょう乱の回帰性が低下するといわれる太陽活動の上昇期にあたるが,いくつかのはっきりした回帰性地磁気嵐の系列が認められ,原因となるコロナホールともよく対応している.また,この期間の特徴として,寿命の短いコロナホールが存在し,それらが原因となる地磁気嵐が多数認められた., This is an attempt to identify the causes of geomagnetic storms which occurred during a year and a half from January 1977 to June 1978. The assignment of geomagnetic storm causation to appropriate coronal holes or solar flares has been made by considering (1) their apparent association with storms, (2) characteristic variations in the solar wind velocity, density, and temperature, (3) coincidence between the coronal hole magnetic field polarity and the interplanetary magnetic field polarity, and (4) storm productivity of solar flares judged mainly from associated radio emission. Of the 44 magnetic storms of Dst≦-50γ in the 1.5 year period investigated in this paper, 40 storms are found to be explicable by either coronal holes or solar flares. The examined 1.5 year period is in the increasing phase of solar activity in which the recurrence tendency of geomaenetic disturbance is expected to be weak. Actually, however, several series of recurrent magnetic storms have been found which are generally well correlated with coronal holes. It is also shown that there are a number of non-recurrent sporadic storms which are associated with short-lived coronal holes in addition to those series of recurrent geomagnetic storms.}, pages = {47--62}, title = {地磁気嵐と太陽面の関連現象(a.入射粒子とオーロラ)(第2回極域における電離圏磁気圏総合観測シンポジウム : Part I)}, volume = {68}, year = {1980}, yomi = {マルハシ, カツヒデ and イシイ, タカヒロオ} }