Physics – Geophysics
Scientific paper
Mar 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980papge.118..239w&link_type=abstract
Pure and Applied Geophysics, vol. 118, no. 1-2, 1980, p. 239-265. Research supported by the Aerospace Corp.
Physics
Geophysics
1
Gravity Waves, Internal Waves, Planetary Waves, Stratosphere, Traveling Waves, Annual Variations, Longitudinal Waves, Oscillating Flow, Power Spectra
Scientific paper
This paper reviews the theory and observations of some traveling planetary waves in the stratosphere. Two categories of waves are discussed: westward propagating waves of periods in the range 3-7 days (the '5-day wave') and in the range 10-20 days (the '16-day wave'). Although the observations seem to indicate that these waves are waves of the Rossby type (planetary waves), the evidence is less clear regarding (1) the question of whether these waves are forced internal waves or free (resonant) external waves, and (2) the identification of the observed waves with specific theoretical waves of the Rossby type. When recent observations are compared with theory, the evidence seems to favor the notion that the 5-day and 16-day waves of longitudinal wave number 1 may be identified, respectively, with the gravest and next gravest symmetric free Rossby modes.
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