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Detailed Reference Information |
Tang, J., Swenson, G.R., Liu, A.Z. and Kamalabadi, F. (2005). Observational investigations of gravity wave momentum flux with spectroscopic imaging. Journal of Geophysical Research 110: doi: 10.1029/2004JD004778. issn: 0148-0227. |
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We apply a newly developed gravity wave momentum flux estimation method to the mesospheric measurements obtained with colocated airglow imager and meteor radar at Maui, Hawaii (20.7¿N, 156.3¿W), during the Maui Mesosphere and Lower Thermosphere (Maui MALT) campaign. The method identifies individual quasi-monochromatic gravity waves with periods between 6 and ~40 min, estimates the intrinsic wave parameters, and calculates the momentum fluxes carried by vertically propagating waves. Data taken on 28 October 2003 are analyzed in detail to reveal the relationship between momentum flux and wave parameters. The January, April, July, and October 2003 data are divided into summer and winter categories, and nightly average momentum fluxes are calculated for comparison of the seasonal wave propagation directions. Average wave momentum flux is directed to the northeast during most of the summer nights, while a southwest preference exists for the winter nights. The results extracted from Maui, Hawaii, combined with the earlier results from Starfire Optical Range, New Mexico (35¿N, 107¿W), and other observations, support the notion that the seasonal trend in meridional flux is a global phenomenon. |
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BACKGROUND DATA FILES |
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Abstract |
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Keywords
Atmospheric Processes, Acoustic-gravity waves, Atmospheric Processes, Middle atmosphere dynamics (0341, 0342), Planetary Sciences, Solid Surface Planets, Aurorae and airglow, Atmospheric Processes, Remote sensing, airglow imaging, gravity wave, momentum flux |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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