Airborne sodium lidar measurements of gravity wave intrinsic parameters
- Univ. of Illinois, Urbana (USA)
The authors describe a data analysis technique for determining gravity wave intrinsic parameters including wave propagation direction. The technique involves measuring the altitude variations of the wave-induced density perturbations of the atmospheric Na layer. This technique can be used with airborne lidars, multiple ground-based lidars, and steerable lidars. In this paper the technique is applied to airborne Na lidar data obtained during a roundtrip flight from Denver, Colorado, to the Pacific Coast in November 1986. During the flight, strong wave perturbations were observed in the Na layer near the Pacific Caost over a horizontal distance of nearly 700 km. The intrinsic horizontal wavelength of this wave was estimated to be about 85 km, and the vertical wavelength was 4.1 km. The intrinsic period was about 102 min, and the propagation direction was almost due south.
- OSTI ID:
- 5329677
- Journal Information:
- Journal of Geophysical Research; (United States), Journal Name: Journal of Geophysical Research; (United States) Vol. 95:D12; ISSN 0148-0227; ISSN JGREA
- Country of Publication:
- United States
- Language:
- English
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540110*
AIRCRAFT
ALKALI METALS
ALTITUDE
CALIFORNIA
COLORADO
DATA ANALYSIS
DENSITY
DEVELOPED COUNTRIES
EARTH ATMOSPHERE
ELEMENTS
EQUATIONS
FEDERAL REGION IX
FEDERAL REGION VIII
GRAVITY WAVES
LAYERS
MEASURING INSTRUMENTS
MESOSPHERE
METALS
NEVADA
NORTH AMERICA
OPTICAL RADAR
PHYSICAL PROPERTIES
RADAR
RANGE FINDERS
SODIUM
USA
UTAH
VARIATIONS
WAVE PROPAGATION
WAVELENGTHS