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small storm

Northward turning. Bz < 0. small storm. (-6.8, 10) RE. Geotail flow (-18.7, -2.3). Quasi-periodic fronts/injections. LANL-97a. LANL-02a. GOES 11. GOES 13. GOES 12. LANL 94. GOES 10. Some Conclusions. THEMIS sees quasi-periodic magnetic oscillations, associated with oscillatory flow

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small storm

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  1. Northward turning Bz < 0 small storm

  2. (-6.8, 10) RE

  3. Geotail flow (-18.7, -2.3)

  4. Quasi-periodic fronts/injections LANL-97a LANL-02a GOES 11 GOES 13 GOES 12 LANL 94 GOES 10

  5. Some Conclusions • THEMIS sees quasi-periodic magnetic oscillations, associated with oscillatory flow • Low-latitude, flank Pi2 at 0910, 0918, 0928 and 0938 UT associated with auroral intensifications and LANL dispersionless injections at dawn flank. • Some disagreement with timing; awaiting digital 210 data. • Event possibly started with a brief northward turning of the IMF. • Did this cause a quasi-periodic instability to develop in the tail? • Final intensification (substorm) occurred further west, towards midnight, and penetrated to GOES-11

  6. Backup Slides

  7. fykn Pi2 at 0910, 0918, 0928, 0938 Each Pi2 associated with auroral activation kian gako

  8. LANL-97

  9. Dawn midnight pre-noon post-noon post-dusk

  10. Dawn midnight pre-noon post-noon post-dusk

  11. GOES HP

  12. Kakioka Pi2 Note Pi2 power over north america

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