極域電離圏上部におけるイオン上昇流の観測
スポンサーリンク
概要
- 論文の詳細を見る
Ion upflow has been investigated by use of ESR (EISCAT Svalbard Radar), SuperDARN,ACE satellite and CHAMP satellite. The field-aligned ion upflows were observed by ESR,which occurred in night-time between 16 and 17, April 2002, and 19 June 2004. However,ESR didn’t show remarkable increase of electron density, electron temperature and iontemperature, which are generated by auroral particle precipitation or frictional heating.The Solar wind parameters were obtained by ACE satellite. SuperDARN showed variationof convection electric field depending on By component of Interplanetary Magnetic Field.CHAMP satellite observed also variations of neutral density, neutral wind, ion density andelectron temperature along the satellite orbits. At the time, ESR was in the polar cap region.Our analyses may suggest that the ion upflow observed by ESR was generated in the upwindregion of plasma convection in the high-latitude ionosphere and was moving to ESR stationby the convection.
- 北海道大学大学院理学研究院自然史科学部門（地球物理学）の論文
- 2007-03-15
北海道大学大学院理学研究院自然史科学部門（地球物理学） | 論文
- Poissonの関係式を用いた北海道北部地域における重力・磁気異常の地下構造解析
- 数値モデル計算によるマグマ貫入に伴う地熱系発達過程の研究
- ドーム状隆起に伴う磁場変化 ―有珠山2000 年噴火時の全磁力変化再検討―
- 放熱率測定に基づいた有珠2000年噴火の活動推移長期予測
- 2003年十勝沖地震(Mw8.0)前後の北海道太平洋沿岸5観測点の地殻変動連続記録について