Pulsating Auroral Forms and Their Association with Geomagnetic Giant Pulsations
On the night of 29/30 October 1987 a giant pulsation (Pg) was recorded on the EISCAT magnetometer cross and the U.K. Sub-Auroral Magnetometer Network (SAMNET), accompanied by a variation in auroral luminosity with an identical periodicity of 77 s. Coincident all-sky image data showed that the aurora...
| Published in: | Planetary and Space Science |
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| Main Authors: | , , |
| Other Authors: | |
| Format: | Text |
| Language: | unknown |
| Published: |
Hosted by Utah State University Libraries
1989
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| Subjects: | |
| Online Access: | https://digitalcommons.usu.edu/physics_facpub/1275 https://doi.org/10.1016/0032-0633(89)90117-7 |
| Summary: | On the night of 29/30 October 1987 a giant pulsation (Pg) was recorded on the EISCAT magnetometer cross and the U.K. Sub-Auroral Magnetometer Network (SAMNET), accompanied by a variation in auroral luminosity with an identical periodicity of 77 s. Coincident all-sky image data showed that the auroral emissions arose from a series of pulsating patches (which exhibited lifetimes of the order 5–15 s) whose occurrence was modulated with a 77 s periodicity. At several times during this event, a new type of pulsating auroral patch was observed. These data provide a unique example of the auroral precipitation signature during a Pg event. |
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