Ground-based observations of diffuse auroral structures in conjunction with Reimei measurements
We present results from ground-based auroral observations coordinated with the Japanese satellite, Reimei, that took place during the winters of 2006, 2007 and 2008 at Poker Flat, Alaska. Comparable temporal and spatial resolution for the optical and in situ particle data, allowed for investigat...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2010-03-01
|
| Series: | Annales Geophysicae |
| Online Access: | https://www.ann-geophys.net/28/873/2010/angeo-28-873-2010.pdf |
| Summary: | We present results from ground-based auroral observations coordinated with
the Japanese satellite, Reimei, that took place during the winters of 2006,
2007 and 2008 at Poker Flat, Alaska. Comparable temporal and spatial
resolution for the optical and in situ particle data, allowed for
investigation of small scale and/or rapidly time-varying auroral structures.
Four satellite passes through diffuse auroral structures were identified. The
structures within the aurora, whether stationary or time-varying (pulsating
aurora), were most closely correlated with the highest energy precipitating
electrons measured by these detectors (8 to 12 keV). This relation is
found to be consistent across all four examples, revealing that the electron
precipitation responsible for these diffuse auroral structures is primarily
that of the ≥8 keV electrons. |
|---|---|
| ISSN: | 0992-7689 1432-0576 |