Polar cap observations of mesospheric and lower thermospheric 4-hour waves in temperature SCIE SCOPUS

Cited 20 time in WEB OF SCIENCE Cited 19 time in Scopus
Title
Polar cap observations of mesospheric and lower thermospheric 4-hour waves in temperature
Author(s)
Won, YI; Wu, Q; Cho, YM; Shepherd, GG; Killeen, TL; Espy, PJ; Kim, Y; Solheim, B
Publication Year
2003-04-05
Abstract
[1] Lower thermospheric and upper mesospheric rotational temperatures have been derived from ground-based measurements of the O-2(0-1) and OH(6-2) nightglow emissions over Resolute Bay, Canada ( 74.68degreesN, 94.90degreesW) and OH(4-2) nightglow emission over Kiruna, Sweden (67.90degreesN, 21.10degreesE). From measurements taken during two nights in November, 2001, we have observed a dominant and coherent 4-hr oscillation in both the O-2 and OH airglow emission rates and rotational temperatures. The phases for the two oscillation events remain almost constant at each location, indicating that these oscillations may not be caused by transient passage of instantaneous gravity waves. More importantly, there is little phase difference in universal time between the 4-hr oscillations in temperature at Resolute and Kiruna. The small phase difference gives a strong indication that the oscillation maybe related to a zonally symmetric tide, since any tidal waves in temperature with a nonzero zonal wavenumber are very weak at high latitudes. Waves in both events have large vertical wavelengths (76 and 175 km). The 4-hr wave shows almost no latitudinal variation from Resolute to Kiruna.
ISSN
0094-8276
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/5517
DOI
10.1029/2002GL016364
Bibliographic Citation
GEOPHYSICAL RESEARCH LETTERS, v.30, no.7, 2003
Publisher
AMER GEOPHYSICAL UNION
Subject
NIGHTGLOW EMISSIONS; TIDAL OSCILLATIONS; GRAVITY-WAVES; AIRGLOW; STATION; WINTER; TIDES
Type
Article
Language
English
Document Type
Article
Publisher
AMER GEOPHYSICAL UNION
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