DOI: 10.1002/2016GL071511
论文题名: Three years of concentric gravity wave variability in the mesopause as observed by IMAP/VISI
作者: Perwitasari S. ; Sakanoi T. ; Nakamura T. ; Ejiri M.K. ; Tsutsumi M. ; Tomikawa Y. ; Otsuka Y. ; Yamazaki A. ; Saito A.
刊名: Geophysical Research Letters
ISSN: 0094-8380
EISSN: 1944-8111
出版年: 2016
卷: 43, 期: 22 起始页码: 11528
结束页码: 11535
语种: 英语
英文关键词: 762 nm nightglow
; concentric gravity waves
; IMAP/VISI
; mesopause
Scopus关键词: Geographical distribution
; Infrared devices
; Ionosphere
; Magnetosphere
; Spectroscopy
; Upper atmosphere
; Global distribution
; IMAP/VISI
; Latitudinal distribution
; mesopause
; Near infrared spectral
; Nightglow
; Occurrence probability
; Southern Hemisphere
; Gravity waves
英文摘要: We report a statistical study on concentric gravity waves (CGWs) in the mesopause (~95 km) using 3 years nightglow data obtained by Ionosphere, Mesosphere, upper Atmosphere and Plasmasphere/Visible and near-Infrared Spectral Imager. The 235 CGWs events were found with horizontal wavelength ranging from 40 to 250 km and maximum radius of 200 to 3000 km. The latitudinal distribution of the CGWs centers had peaks in mid latitude (40°N and 40°S) and minimum at low latitudes (10°S). More events were found in the summer hemisphere midlatitudes, with a rapid transition between northern and Southern Hemisphere around the equinoxes. The occurrence probability was significantly higher during nonsolstice months (February–May and August–November) than solstice months (June–July and December–January), suggesting that there was a little breaking or critical level absorption so the waves could reach the mesopause more often during these periods. The global distribution showed several preferable regions but very few events over tropical convective regions. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85004000420&doi=10.1002%2f2016GL071511&partnerID=40&md5=46c0eff6263426962d8e2025fe5eb63b
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9343
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Planetary Plasma and Atmospheric Research Center, Tohoku University, Sendai, Japan
Recommended Citation:
Perwitasari S.,Sakanoi T.,Nakamura T.,et al. Three years of concentric gravity wave variability in the mesopause as observed by IMAP/VISI[J]. Geophysical Research Letters,2016-01-01,43(22).