All Physics Faculty Publications
Document Type
Article
Journal/Book Title/Conference
Geophysical Research Letters
Volume
22
Issue
20
Publisher
American Geophysical Union
Publication Date
10-1995
First Page
2853
Last Page
2856
Abstract
Simultaneous observations of gravity waves using an Na wind/temperature lidar and a multi‐wavelength all‐sky nightglow imager were obtained, for the first time, during the ALOHA‐93 campaign. A novel investigation of intrinsic wave parameters has been made by combining measurements of the horizontal wave components imaged in four nightglow emissions (height range ∼80–100 km) with Na lidar soundings of the horizontal wind field and temperature profiles over the same height interval. On October 19 both instruments registered marked monochromatic wave motions. The intrinsic periods of several of these waves have been determined and were found to vary considerably with altitude, often resulting in a significant increase over their observed wave periods. It is shown that these two instrumental techniques generally sampled different regions of the gravity wave spectrum: the lidar exhibiting most sensitivity to short vertical wavelength waves (less than about 10 km) while the imager was most responsive to larger vertical wavelength waves. This study illustrates the significant advantages of combining wind/temperature lidar and multi‐wavelength image observations for intrinsic gravity wave measurements.
Recommended Citation
Taylor, M.J., Y.Y. Gu, X. Tao, C.S. Gardner and M.B. Bishop, An investigation of intrinsic gravity wave signatures using coordinated lidar and nightglow image measurements, Geophys. Res. Lett., 22, 2853, 1995.
Comments
Published by the American Geophysical Union in Geophysical Research Letters: http://www.agu.org/pubs/crossref/1995/95GL02949.shtml
Publisher PDF is available for download through the link above.