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Articles 1 - 4 of 4
Full-Text Articles in Physical Sciences and Mathematics
A Coordinated Study Of 1-H Mesoscale Gravity Waves Propagating From Logan To Boulder With Crrl Na Doppler Lidars And Temperature Mapper, Xian Liu, Cao Chen, Wentao Huang, John A. Smith, Xinzhao Chu, Tao Yuan, Pierre-Dominique Pautet, Michael J. Taylor, Jie Gong, Chihoko Y. Cullens
A Coordinated Study Of 1-H Mesoscale Gravity Waves Propagating From Logan To Boulder With Crrl Na Doppler Lidars And Temperature Mapper, Xian Liu, Cao Chen, Wentao Huang, John A. Smith, Xinzhao Chu, Tao Yuan, Pierre-Dominique Pautet, Michael J. Taylor, Jie Gong, Chihoko Y. Cullens
Publications
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. …
Momentum Flux Estimates Accompanying Multi-Scale Gravity Waves Over Mt. Cook, New Zealand On 13 July 2014 During The Deepwave Campaign, Katrina Bossert, David C. Fritts, Pierre-Dominique Pautet, Bifford P. Williams, Michael J. Taylor, Bernd Kaifler, Andrea Dornbrack, Iain M. Reid, Damian J. Murphy, Andrew J. Spargo, Andrew D. Mackinnon
Momentum Flux Estimates Accompanying Multi-Scale Gravity Waves Over Mt. Cook, New Zealand On 13 July 2014 During The Deepwave Campaign, Katrina Bossert, David C. Fritts, Pierre-Dominique Pautet, Bifford P. Williams, Michael J. Taylor, Bernd Kaifler, Andrea Dornbrack, Iain M. Reid, Damian J. Murphy, Andrew J. Spargo, Andrew D. Mackinnon
Publications
Observations performed with a Rayleigh lidar and an Advanced Mesosphere Temperature Mapper aboard the National Science Foundation/National Center for Atmospheric Research Gulfstream V research aircraft on 13 July 2014 during the Deep Propagating Gravity Wave Experiment (DEEPWAVE) measurement program revealed a large-amplitude, multiscale gravity wave (GW) environment extending from ~20 to 90 km on flight tracks over Mount Cook, New Zealand. Data from four successive flight tracks are employed here to assess the characteristics and variability of the larger- and smaller-scale GWs, including their spatial scales, amplitudes, phase speeds, and momentum fluxes. On each flight, a large-scale mountain wave (MW) …
Recent Progress In Mesospheric Gravity Wave Studies Using Nigthglow Imaging System, Michael J. Taylor, William R. Pendleton Jr., Pierre-Dominique Pautet, Yucheng Zhao, Chris Olsen, Hema Karnam Surendra Babu, Amauri F. Medeiros, Hisao Takahashi
Recent Progress In Mesospheric Gravity Wave Studies Using Nigthglow Imaging System, Michael J. Taylor, William R. Pendleton Jr., Pierre-Dominique Pautet, Yucheng Zhao, Chris Olsen, Hema Karnam Surendra Babu, Amauri F. Medeiros, Hisao Takahashi
Publications
A variety of optical remote sensing techniques have now revealed a rich spectrum of wave activity in the upper atmosphere. Many of these perturbations, with periodicities ranging from ~ 5 min to many hours and horizontal scales of a few tens of km to several thousands km, are due to freely propagating atmospheric gravity waves and forced tidal oscillations. Passive optical observations of the spatial and temporal characteristics of these waves in the mesosphere and lower thermosphere (MLT) region ( ~ 80-100 km) are facilitated by several naturally occurring, vertically distinct nightglow layers. This paper describes the use of state-of-the-art …
Coordinated Investigation Of Mid-Latitude Upper Mesospheric Temperature Inversion Layers And The Associated Gravity Wave Forcing By Na Lidar And Advanced Mesospheric Temperature Mapper At Logan, Utah (42°N), Tao Yuan, Pierre-Dominique Pautet, Yucheng Zhao, Xuguang Cai, Neal R. Criddle, Michael J. Taylor, William R. Pendleton Jr.
Coordinated Investigation Of Mid-Latitude Upper Mesospheric Temperature Inversion Layers And The Associated Gravity Wave Forcing By Na Lidar And Advanced Mesospheric Temperature Mapper At Logan, Utah (42°N), Tao Yuan, Pierre-Dominique Pautet, Yucheng Zhao, Xuguang Cai, Neal R. Criddle, Michael J. Taylor, William R. Pendleton Jr.
Publications
Mesospheric inversion layers (MIL) are well studied in the literature but their relationship to the dynamic feature associated with the breaking of atmospheric waves in the mesosphere/lower thermosphere (MLT) region are not well understood. Two strong MIL events (ΔT ~30 K) were observed above 90 km during a 6 day full diurnal cycle Na lidar campaign conducted from 6 August to 13 August Logan, Utah (42°N, 112°W). Colocated Advanced Mesospheric Temperature Mapper observations provided key information on concurrent gravity wave (GW) events and their characteristics during the nighttime observations. The study found both MILs were well correlated with the development …