A comparison of optical and radar measurements of mesospheric winds and tides

Optical measurements of mesospheric winds by Fabry‐Perot spectrometers, FPSs, at Mawson, 67.6°S 62.9°E, and Davis, 68.6°S 78.0°E, Antarctica are compared with similar measurements obtained using a spaced‐antenna MF radar at Davis. The FPSs observed the OH emission. Different analysis procedures, use...

Full description

Bibliographic Details
Published in:Geophysical Research Letters
Main Authors: Greet, P., Murphy, D., Vincent, R., Dyson, P.
Format: Article in Journal/Newspaper
Language:English
Published: Amer Geophysical Union 2000
Subjects:
Antarc*
Antarctica
E. Antarctica
Online Access:http://hdl.handle.net/2440/12514
https://doi.org/10.1029/2000GL000036
Description
Summary:Optical measurements of mesospheric winds by Fabry‐Perot spectrometers, FPSs, at Mawson, 67.6°S 62.9°E, and Davis, 68.6°S 78.0°E, Antarctica are compared with similar measurements obtained using a spaced‐antenna MF radar at Davis. The FPSs observed the OH emission. Different analysis procedures, used to determine the mean wind, and amplitude and phase of the semidiurnal tide, have been compared. At these latitudes the diurnal tide is weak and the semi‐diurnal tide, although highly variable in amplitude, is usually the dominant periodicity. When comparing the amplitude and phase of the semidiurnal tide good agreement is obtained between measurements by the two instruments.

Similar Items