 |
| Titel |
First negative system of N2+ in aurora: simultaneous space-borne and ground-based measurements and modeling results |
| VerfasserIn |
K. Axelsson, T. Sergienko, H. Nilsson, U. Brandstrom, K. Asamura, T. Sakanoi |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
0992-7689
|
| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 32, no. 5 ; Nr. 32, no. 5 (2014-05-20), S.499-506 |
| Datensatznummer |
250121057
|
| Publikation (Nr.) |
 copernicus.org/angeo-32-499-2014.pdf |
|
|
|
|
|
| Zusammenfassung |
| The auroral emission of the first negative system of N2+ at 427.8 nm
is analyzed using simultaneous measurements from the ground with ALIS
(Auroral Large Imaging System) and from space with optical (MAC) and particle
(ESA) instruments of the Reimei satellite. The study has two main objectives.
The first is validation of the absolute calibration of the ALIS and the
Reimei MAC cameras. The other task is to evaluate different cross sections of
the electron excitation of N2+ that are used for the modeling of the
auroral 1N system emissions. The simultaneous measurements of the 427.8 nm
emission by ALIS and Reimei imagers show excellent agreement, indicating that
the calibration of the two instruments is correct. Comparison of the
427.8 nm emission intensity calculated using the incident electron flux
measured by the Reimei particle instruments with intensities measured by the
optical imagers show that the best match is reached with the cross section
from Shemansky and Liu (2005). |
| |
|
| Teil von |
|
|
|
|
|
|
|
|