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Planetary waves near the mesospheric easterly jet
Author(s) -
Burks Douglas,
Leovy Conway
Publication year - 1986
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl013i003p00193
Subject(s) - stratosphere , mesosphere , jet (fluid) , geology , jet stream , radiance , tropical wave , atmospheric wave , amplitude , atmospheric sciences , geophysics , gravity wave , physics , wave propagation , climatology , remote sensing , mechanics , optics , tropical cyclone
Analysis of temperatures retrieved from satellite limb radiance measurements of the stratosphere and mesosphere during January‐February 1979 reveals 3 prominent waves: wave number 3 with period 2.1 days, wave number 4 with period 1.8 days, and wave number 1 with period approximately 9 days. Each of these has maximum amplitude in the equatorward shear zone of the summer mesospheric easterly jet and propagates westward. Characteristics of the 1.8 day wave number 4 mode indicate that it arises from instability of the jet. The set of three waves may comprise an interacting triad.