1 / 11

THEMIS GBO/ASI Minor intensification GBAY 01:48:42 KUUJ 01:48:51 CHBG 01:49:39 SNKQ 01:50:54

THEMIS GBO/ASI Minor intensification GBAY 01:48:42 KUUJ 01:48:51 CHBG 01:49:39 SNKQ 01:50:54 GILL 01:51:18 TPAS 01:51:21 Major intensification (substorm) GBAY 01:55:36 KUUJ 01:55:21 CHBG 01:56:33 SNKQ 01:52:27 GILL 01:54:21 TPAS 01:54:30.

marin
Télécharger la présentation

THEMIS GBO/ASI Minor intensification GBAY 01:48:42 KUUJ 01:48:51 CHBG 01:49:39 SNKQ 01:50:54

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. THEMIS GBO/ASI Minor intensification GBAY 01:48:42 KUUJ 01:48:51 CHBG 01:49:39 SNKQ 01:50:54 GILL 01:51:18 TPAS 01:51:21 Major intensification (substorm) GBAY 01:55:36 KUUJ 01:55:21 CHBG 01:56:33 SNKQ 01:52:27 GILL 01:54:21 TPAS 01:54:30

  2. THEMIS SC, GBO and GOES observations 08-03-01/0100 – 0210 UT P1 KUUJ P2 P3 P4 G12 G10 GBAY 01:48:50UT 0148:42 0154:21

  3. P1 and P2: X=-22.7, -17.4 RE

  4. P2 P1

  5. Timing of HE particles (P1 and P2 SST) First tailward burst P2 P1 0148:42 UT 0148:42 UT 134 keV

  6. P3 and P4: X=-9.5, -8.0 RE

  7. Magnetic field variations at P3, P4, GOES 10, GOES 12 • P3 and P4 FGM measurements: • Total field (Bt) at P3 and P4 continuously increases until ~0955 UT • Variations of the components, (baseline subtracted): • δBy and δBz started at 0148:20 – 0148:40 UT, indicating outward FAC underneath the SC, while Bx and Bt were increasing (the total current built up) until ~0154:30UT (current reduction/disruption). • CR/CD P4  P3: Tailward at a velocity of 150 km/s • GOES 10: • Positive δBn (eastward!) at 0148- 0155 UT G10 was under the FAC GOES10, 12: • Dipolarization started at ~0155 UT

  8. 2008-03-01/0140 – 0205 UT First activation 0148:20: HE electron flux increase at P2 0148:20: ~150 keV ion flux increase at P2 0148:30: minor δBy at P3 & P4 0148:42: Auroral onset at GBAY 0148:45: PI2 onset at GBAY 0148:50: δBy and δBz at P2/THC 0148:50: Tailward flow at P2/THC 0149:30: δBy and δBz at P1/THB 0149:30: Tailward flow at P1/THB 0149:30: major δBy δBz at P3 & P4 Second activation (substorm) 0154:21: Auroral onset at KUUJ 0154:30: Tailward flow at P1 0154:30: δBy, δBz at P2 0155:00: Tailward flow at P2 0155:00: Drop of Bt at P4 0155:00: Dipolarization at P4 0155:00: δVy, δVz at P4 0155:50: Drop of Bt at P3 0155:50: Dipolarization at P3 0155:50: δVy znd δVz at P3 Signatures in space and in the ionosphere are seen within 20 s! Current reduction /CD at X~-8 RE and plasma acceleration at X~-17 RE acted almost simultaneously (independently?)

  9. THEMIS ASI T96 SW P1 TIPSOD EO P2 P3 P4 G12 G10 GBAY 3 variants of mapping: TIPSOD (T96?), T96 SW, Event Oriented (EO)

More Related