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Quasi‐3‐day Kelvin wave and the OI(5577 Å), OH(6,2) Meinel, and O 2 (0,1) emissions
Author(s) -
Lichstein G. S.,
Forbes J. M.,
Angelats i Coll M.,
Takahashi H.,
Gobbi D.,
Buriti R. A.
Publication year - 2002
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 - 10.1029/2001gl031824
Subject(s) - kelvin wave , airglow , atmospheric sciences , troposphere , wavenumber , mesosphere , zenith , satellite , aeronomy , meteorology , environmental science , physics , atmosphere (unit) , geodesy , geology , stratosphere , astronomy , optics
Ground‐based zenith photometric observations at São João do Cariri (7°S, 37°W), Brazil, reveal the existence of ∼25–40% quasi‐3‐day oscillations in OI(5577Å), O 2 (0,1), and OH (6,2) emissions and upper mesospheric temperatures (∼6K) during June and July, 1998. A previous numerical model study [ Forbes , 2000] has reported on the global characteristics of a 3‐day Kelvin wave with zonal wavenumber s = 1, and consistency with satellite and radar observations. Herein we present the results of a one‐dimensional dynamical‐chemical simulation that demonstrates that the photometric observations are consistent with a Kelvin wave interpretation. Thus, a connection is made for the first time between convective processes in the tropical troposphere, and upper atmospheric airglow emissions.

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