Physics
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sa22a07h&link_type=abstract
American Geophysical Union, Spring Meeting 2001, abstract #SA22A-07
Physics
3332 Mesospheric Dynamics, 3334 Middle Atmosphere Dynamics (0341, 0342), 3384 Waves And Tides
Scientific paper
The University of Illinois Na wind/temperature lidar data collected at the Starfire Optical Range, NM, can be used to extract the dominant monochromatic inertial gravity waves and to characterize their features. By using simultaneously measured horizontal wind and temperature profiles the vertical wavelengths, intrinsic periods, and propagation directions can be determined using the hodograph method. A total of 700 monochromatic gravity waves were analyzed from about 300 h of observations. Waves with vertical wavelengths between 2 and 20 km and intrinsic periods between 1 and 20 h were fully characterized. 84.4% of the waves were propagating upwards. The mean vertical wavelengths are 12.6 km and 9.9 km for upward and downward waves, respectively. The vertical wavelengths show a bi-modal distribution with the largest number of waves having vertical wavelengths of 15-16 km and 7-8 km. This bi-modal distribution is discussed in this paper.
Gardner Chester S.
Hu Xiao
Swenson Gary R.
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