NDLI: Picture of the global field of quasi-monochromatic gravity waves observed by stratospheric balloons and mst radars

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Picture of the global field of quasi-monochromatic gravity waves observed by stratospheric balloons and mst radars

Content Provider	NASA Technical Reports Server (NTRS)
Author	Yamanaka, M. D.
Copyright Year	1989
Description	In MAP observations, it was found that: (1) gravity waves in selected or filtered portions of data are fit for monochromatic structures, whereas (2) those in fully continuous and resolved observations take universal continuous spectra. It is possible to explain (2) by dispersion of quasi-monochromatic (or slowly varying) wave packets observed locally as (1), since the medium atmosphere is unsteady and nonuniform. Complete verification of the wave-mean flow interactions by tracking individual wave packets seems hopeless, because the wave induced flow cannot be distinguished from the basic flow independent of the waves. Instead, the primitive picture is looked at before MAP, that is, the atmosphere is just like an entertainment stage illuminated by cocktail lights of quasi-monochromatic gravity waves. The wave parameters are regarded as functions of time and spatial coordinates. The observational evidences (1) and (2) suggest that the wave parameter field is rather homogeneous, which can be explained by interference of quasi-monochromatic wave packets.
File Size	54091
Page Count	2
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19890020557
Archival Resource Key	ark:/13960/t9w13zs35
Language	English
Publisher Date	1989-04-01
Access Restriction	Open
Subject Keyword	Geophysics Atmospheric Circulation Balloon-borne Instruments Atmospheric Turbulence Middle Atmosphere Time Wind Profiles Gravity Waves Wave Packets Radar Measurement Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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