Other
Scientific paper
Mar 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005jgrd..11009s09t&link_type=abstract
Journal of Geophysical Research, Volume 110, Issue D9, CiteID D09S09
Other
10
Atmospheric Processes: Acoustic-Gravity Waves, Atmospheric Processes: Middle Atmosphere Dynamics (0341, 0342), Planetary Sciences: Solid Surface Planets: Aurorae And Airglow, Atmospheric Processes: Remote Sensing
Scientific paper
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.
Kamalabadi Farzad
Liu Alan Z.
Swenson Gary R.
Tang Jie
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