 |
| Titel |
Gravity wave amplitudes and momentum fluxes inferred from OH airglow intensities and meteor radar winds during SpreadFEx |
| VerfasserIn |
F. Vargas, D. Gobbi, H. Takahashi, L. M. Lima |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
0992-7689
|
| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 27, no. 6 ; Nr. 27, no. 6 (2009-06-08), S.2361-2369 |
| Datensatznummer |
250016550
|
| Publikation (Nr.) |
 copernicus.org/angeo-27-2361-2009.pdf |
|
|
|
|
|
| Zusammenfassung |
| We show in this report the momentum flux content input in the
mesosphere due to relatively fast and small scale gravity waves
(GWs) observed through OH airglow images. The acquisition of OH NIR
images was carried out in Brazil at Brasilia (14.8° S,
47.6° W) and Cariri (7.4° S, 36.5° W) from
September 2005 to November 2005 during the SpreadFEx Campaign.
Horizontal wind information from meteor radar was available in
Cariri only. Our findings showed strong wave activity in both sites,
mainly in Cariri. High wave directionality was also observed in both
sites during SpreadFEx, which have been observed by other
investigators using different analysis' techniques and different
types of data during the campaign. We discuss also the possibility
of plasma bubble seeding by gravity waves presenting spatial and
temporal scales estimated with our novel analysis technique during
the SpreadFEx campaign. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|