DOI: 10.1029/2012GL054605
论文题名: Evidence of gravity wave ducting in the mesopause region from airglow network observations
作者: Suzuki S. ; Shiokawa K. ; Otsuka Y. ; Kawamura S. ; Murayama Y.
刊名: Geophysical Research Letters
ISSN: 0094-9322
EISSN: 1944-9053
出版年: 2013
卷: 40, 期: 3 起始页码: 601
结束页码: 605
语种: 英语
英文关键词: airglow imaging
; ducting wave
; gravity waves
; mesosphere and lower thermosphere
Scopus关键词: Fiber optic networks
; Ducting
; Mesopause region
; Mesosphere and lower thermosphere
; Network observation
; Observation Period
; Two-dimensional patterns
; Wave signatures
; Wave structures
; Gravity waves
; airglow
; clear sky
; gravity wave
; mesopause
; mesosphere
; radar
; satellite data
; thermosphere
; wave propagation
; Japan
英文摘要: We present observational evidence of gravity wave ducting and show, for the first time, that the ducting occurs over large horizontal distances in the mesopause region. An optical network of four all-sky imagers in Japan identified two-dimensional patterns of small-scale gravity wave bands in OH airglow images on 13 June 2004. The wave signatures clearly showed northward propagation of more than 1800 km over a wide range of latitudes. The horizontal wavelength, horizontal phase speed, and wave period were estimated from the airglow data as 33.4 km, 42.8 m s-1, and 13.4 min, respectively. The wave structure lasted for the whole 5-h airglow observation period. Simultaneous MF radar wind data and TIMED/SABER measurements suggested that the wave was trapped and ducted at the airglow height. The ducting likely contributed to the remarkable coherence of the wave as it propagated northward. Key Points An airglow imaging network in Japan provides gravity wave ducting signatures Gravity wave bands appear over a horizontal extent of more than 1800 km Simultaneous winds and temperature are consistent with gravity wave ducting © 2012. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84878177960&doi=10.1029%2f2012GL054605&partnerID=40&md5=2a35720a0b5a47c5f8cc470618689876
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6586
Appears in Collections: 气候减缓与适应
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作者单位: Solar-Terrestrial Environment Laboratory, Nagoya University, 464-8601 Nagoya, Japan
Recommended Citation:
Suzuki S.,Shiokawa K.,Otsuka Y.,et al. Evidence of gravity wave ducting in the mesopause region from airglow network observations[J]. Geophysical Research Letters,2013-01-01,40(3).