Skip to main content

Research Repository

Advanced Search

Characterization of the mesospheric sodium layer at La Palma

Michaille, L.; Clifford, J.B.; Dainty, J.C.; Gregory, T.; Quartel, J.C.; Reavell, F.C.; Wilson, R.W.; Wooder, N.J.

Authors

L. Michaille

J.B. Clifford

J.C. Dainty

T. Gregory

J.C. Quartel

F.C. Reavell

N.J. Wooder



Abstract

We present the results of a mesospheric sodium monitoring programme at La Palma carried out through five campaigns of one week each, from 1999 September to 2000 August. The yearly averaged parameters of the layer (the sodium column density and the width) are given. We show that the short time-scale dynamics of the layer are governed by the sporadic layers with an average frequency of one event per night. The influence of the short time-scale dynamics of the layer on an adaptive optics system working on the William Herschel Telescope is quantified. It appears that it is a small effect in terms of defocus error. Finally, we present data obtained during the Perseid meteor shower and show that the dynamics of the sodium layer undergoes a transition with the meteoric activity.

Citation

Michaille, L., Clifford, J., Dainty, J., Gregory, T., Quartel, J., Reavell, F., …Wooder, N. (2001). Characterization of the mesospheric sodium layer at La Palma. Monthly Notices of the Royal Astronomical Society, 328(4), 993-1000. https://doi.org/10.1046/j.1365-8711.2001.04703.x

Journal Article Type Article
Publication Date 2001-12
Deposit Date Nov 22, 2006
Journal Monthly Notices of the Royal Astronomical Society
Print ISSN 0035-8711
Electronic ISSN 1365-2966
Publisher Royal Astronomical Society
Peer Reviewed Peer Reviewed
Volume 328
Issue 4
Pages 993-1000
DOI https://doi.org/10.1046/j.1365-8711.2001.04703.x
Keywords Atomic processes, Scattering, Atmospheric effects, Site testing, telescopes.