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Detailed Reference Information |
Suzuki, S., Shiokawa, K., Otsuka, Y., Ogawa, T., Nakamura, K. and Nakamura, T. (2007). A concentric gravity wave structure in the mesospheric airglow images. Journal of Geophysical Research 112: doi: 10.1029/2005JD006558. issn: 0148-0227. |
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A concentric gravity wave pattern was observed by an all-sky airglow imager located at Shigaraki, Japan (34.9¿N, 136.1¿E) on 3 October 2002. The wave pattern was identified over 2.5 hours (1330--1600 UT or 2230--0100 LT) both in the OI (557.7 nm) and OH (720--910 nm) band images. It had a wavelength of about 35 km and propagated concentrically northeastward with a horizontal phase velocity of about 80 m/s. The wave had a short period of about 7 min and a momentum flux of 2.2 m2/s2. We identified the source of the waves as a cumulonimbus in the satellite cloud images and in radar precipitation images near the center of the concentric pattern. We conclude that this rare wave pattern was caused by a weak wind system that extended from the stratosphere to the mesopause region in an autumn transition. |
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Abstract |
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Keywords
Atmospheric Processes, Acoustic-gravity waves, Atmospheric Composition and Structure, Airglow and aurora, Atmospheric Processes, Middle atmosphere dynamics (0341, 0342) |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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