著者名 | Authors | 所属機関名 | 所属機関名(欧文) | |
1 | #小川/忠彦 | Ogawa/Tadahiko | 名大STE研 | STE Lab., Nagoya Univ. |
2 | F2 | Buchert/Stephan | 名大STE研 | STE Lab., Nagoya Univ. |
3 | 西谷/望 | Nishitani/Nozomu | 名大STE研 | STE Lab., Nagoya Univ. |
4 | 佐藤/夏雄 | Sato/Natsuo | 極地研 | NIPR |
5 | 渡部/重十 | Watanabe/Shigeto | 北大大学院理学研究科 | Hokkaido Univ. |
6 | SuperDARN PIグループ | SuperDARN PIs | K6 | M |
講演予稿:
1997年7月15日及び1998年2月1日に昼間側カスプ付近で顕
著な電離圏イオンの流出現象がEISCAT-Svalbardレーダーで観測
された。これと同時に北極域のSuperDARN短波レーダーで観測さ
れたF層エコーとの関係を調べ、イオン流出とレーダーエコー
との物理的な因果関係を論じる。
abstract:
F region decameter-irregularities near the dayside cusp region
observed on July 15, 1997 and February 1, 1998 with SuperDARN HF
radars, whose fields of view cover the F region ionosphere over
the EISCAT Svalbard radar (ESR), are discussed to investigate a
relationship between the irregularities and ion outflow events
detected with ESR. For a certain period active irregularities
covered the field of view of ESR that was detecting ion outflow.
At other periods, however, no spatial correlation existed between
the irregularities and outflow. Such behaviors can be explained
by a possible relation between electric fields and/or field-aligned
currents producing the irregularities and an ion acceleration
resulting in the outflow.
キーワード:
電離圏、極域、プラズマ不安定、イオン流出、レーダー
Keywords:
ionosphere, polar region, plasma instability, ion outflow, radar