DOI: 10.1002/2015JD023604
论文题名: A coordinated study of 1 h mesoscale gravity waves propagating from Logan to Boulder with CRRL Na Doppler lidars and temperature mapper
作者: Lu X. ; Chen C. ; Huang W. ; Smith J.A. ; Chu X. ; Yuan T. ; Pautet P.-D. ; Taylor M.J. ; Gong J. ; Cullens C.Y.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2015
卷: 120, 期: 19 起始页码: 10006
结束页码: 10021
语种: 英语
英文关键词: Advanced Mesospheric Temperature Mapper (AMTM)
; CRRL Na Doppler lidars
; GW polarization relation
; mesoscale 1 h gravity wave
; remote sensing
; wave intrinsic properties
Scopus关键词: airglow
; amplitude
; azimuth
; Doppler lidar
; gravity wave
; meridional circulation
; mesopause
; mesoscale meteorology
; polarization
; precision
; remote sensing
; spatiotemporal analysis
; temperature profile
; wave propagation
; wavelength
; zonal wind
; Boulder
; Colorado
; Logan
; United States
; Utah
英文摘要: We present the first coordinated study using two lidars at two separate locations to characterize a 1 h mesoscale gravity wave event in the mesopause region. The simultaneous observations were made with the Student Training and Atmospheric Research (STAR) Na Doppler lidar at Boulder, CO, and the Utah State University Na Doppler lidar and temperature mapper at Logan, UT, on 27 November 2013. The high precision possessed by the STAR lidar enabled these waves to be detected in vertical wind. The mean wave amplitudes are ~0.44 m/s in vertical wind and ~1% in relative temperature at altitudes of 82-107 km. Those in the zonal and meridional winds are 6.1 and 5.2 m/s averaged from 84 to 99 km. The horizontal and vertical wavelengths inferred from the mapper and lidars are ~219 ± 4 and 16.0 ± 0.3 km, respectively. The intrinsic period is ~1.3 h for the airglow layer, Doppler shifted by a mean wind of ~17 m/s. The wave packet propagates from Logan to Boulder with an azimuth angle of ~135' clockwise from north and an elevation angle of ~ 3' from the horizon. The observed phase difference between the two locations can be explained by the traveling time of the 1 h wave from Logan to Boulder, which is about ~2.4 h. The wave polarization relations are examined through the simultaneous quantifications of the three wind components and temperature. This study has developed a systematic methodology for fully characterizing mesoscale gravity waves, inspecting their intrinsic properties and validating the derivation of horizontal wave structures by applying multiple instruments from coordinated stations. ©2015. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62989
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States; Department of Aerospace Engineering Sciences, University of Colorado Boulder, Boulder, CO, United States; Center for Atmospheric and Space Sciences, Utah State University, Logan, UT, United States; Universities Space Research Association, NASA Goddard Space Flight Center, Greenbelt, MD, United States; Space Science Laboratory, University of California, Berkeley, CA, United States
Recommended Citation:
Lu X.,Chen C.,Huang W.,et al. A coordinated study of 1 h mesoscale gravity waves propagating from Logan to Boulder with CRRL Na Doppler lidars and temperature mapper[J]. Journal of Geophysical Research: Atmospheres,2015-01-01,120(19)