The excitation of the Na airglow from Coqui Dos rocket and ground-based observations

Citation
Jh. Hecht et al., The excitation of the Na airglow from Coqui Dos rocket and ground-based observations, GEOPHYS R L, 27(4), 2000, pp. 453-456
Citations number
14
Categorie Soggetti
Earth Sciences
Journal title
GEOPHYSICAL RESEARCH LETTERS
ISSN journal
00948276 → ACNP
Volume
27
Issue
4
Year of publication
2000
Pages
453 - 456
Database
ISI
SICI code
0094-8276(20000215)27:4<453:TEOTNA>2.0.ZU;2-Q
Abstract
On February 20 1998 two rockets were launched from Puerto Rico as part of t he Coqui Dos campaign. Data from on-board photometers and ground-based data from a Na lidar and an airglow imager allowed an estimate to be made, usin g both the TIME-GCM and MSIS models, of the branching coefficient alpha for the Na airglow emission. Assuming the hydrogen density is within the range predicted by the two models the data are consistent with cu being less tha n 0.05. This value is well below a recent theoretical estimate of 0.67 and also below the nominally accepted value of 0.1 derived from previous aerono mic data.