Articles | Volume 15, issue 5
https://doi.org/10.5194/acp-15-2709-2015
https://doi.org/10.5194/acp-15-2709-2015
Research article
 | 
10 Mar 2015
Research article |  | 10 Mar 2015

Evidence for tropospheric wind shear excitation of high-phase-speed gravity waves reaching the mesosphere using the ray-tracing technique

M. Pramitha, M. Venkat Ratnam, A. Taori, B. V. Krishna Murthy, D. Pallamraju, and S. Vijaya Bhaskar Rao

Related authors

Assessment of GPS radiosonde descent data
M. Venkat Ratnam, N. Pravallika, S. Ravindra Babu, G. Basha, M. Pramitha, and B. V. Krishna Murthy
Atmos. Meas. Tech., 7, 1011–1025, https://doi.org/10.5194/amt-7-1011-2014,https://doi.org/10.5194/amt-7-1011-2014, 2014

Related subject area

Subject: Dynamics | Research Activity: Remote Sensing | Altitude Range: Mesosphere | Science Focus: Physics (physical properties and processes)
Lidar measurements of noctilucent clouds at Río Grande, Tierra del Fuego, Argentina
Natalie Kaifler, Bernd Kaifler, Markus Rapp, Guiping Liu, Diego Janches, Gerd Baumgarten, and Jose-Luis Hormaechea
Atmos. Chem. Phys., 24, 14029–14044, https://doi.org/10.5194/acp-24-14029-2024,https://doi.org/10.5194/acp-24-14029-2024, 2024
Short summary
Has the 2022 Hunga eruption impacted the noctilucent cloud season in 2023/24 and 2024?
Sandra Wallis, Matthew DeLand, and Christian von Savigny
EGUsphere, https://doi.org/10.5194/egusphere-2024-2165,https://doi.org/10.5194/egusphere-2024-2165, 2024
Short summary
Upper-atmosphere responses to the 2022 Hunga Tonga–Hunga Ha′apai volcanic eruption via acoustic gravity waves and air–sea interaction
Qinzeng Li, Jiyao Xu, Aditya Riadi Gusman, Hanli Liu, Wei Yuan, Weijun Liu, Yajun Zhu, and Xiao Liu
Atmos. Chem. Phys., 24, 8343–8361, https://doi.org/10.5194/acp-24-8343-2024,https://doi.org/10.5194/acp-24-8343-2024, 2024
Short summary
Momentum flux characteristics of vertical propagating Gravity Waves
Prosper K. Nyassor, Cristiano M. Wrasse, Igo Paulino, Cosme A. O. B. Figueiredo, Ricardo A. Buriti, Hisao Takahashi, Delano Gobbi, and Gabriel A. Giongo
EGUsphere, https://doi.org/10.5194/egusphere-2024-1982,https://doi.org/10.5194/egusphere-2024-1982, 2024
Short summary
Influences of sudden stratospheric warmings on the ionosphere above Okinawa
Klemens Hocke, Wenyue Wang, and Guanyi Ma
Atmos. Chem. Phys., 24, 5837–5846, https://doi.org/10.5194/acp-24-5837-2024,https://doi.org/10.5194/acp-24-5837-2024, 2024
Short summary

Cited articles

Alexander, M. J., Holton, J. R., and Durran, D. R.: The gravity wave response above deep convection in a squall line simulation, J. Atmos. Sci., 52, 2212–2226, 1995.
Alexander , M. J., Geller, M., McLandress, C., Polavarapu, S., Preusse, P., Sassi, F., Sato, K., Eckermann, S., Ern, M., Hertzog, A., Kawatani, Y., Pulido, M., Shaw, T. A., Sigmond, M., Vincent, R., and Watanabe, S.: Recent developments in gravity-wave effects in climate models, and the global distribution of gravity-wave momentum flux from observations and models, Q. J. R. Meteorol. Soc., 136, 1103–1124, 2010.
Brown, L. B., Gerrard, A. J., Meriwether, J. W., and Makela, J. J.: All-sky imaging observations of mesospheric fronts in OI 557.7 nm and broadband OH airglow emissions: Analysis of frontal structure, atmospheric background conditions, and potential sourcing mechanisms, J. Geophys. Res., 109, D19104, https://doi.org/10.1029/2003JD004223, 2004.
Chun, H. Y. and Kim, Y. H.: Secondary waves generated by breaking of convective gravity waves in the mesosphere and their influence in the wave momentum flux, J. Geophys. Res., 113, D23107, https://doi.org/10.1029/2008JD009792, 2008.
Clark, T. L., Hauf, T., and Kuettner, J. P.: Convectively forced internal gravity waves: Results from two-dimensional numerical experiments, Q. J. R. Meteorol. Soc.,112, 899–925, https://doi.org/10.1002/qj.49711247402,1986.
Download
Short summary
Sources and propagation characteristics of high-frequency gravity waves observed in the mesosphere using airglow emissions from Gadanki and Hyderabad, India, are investigated using reverse ray tracing. Wave amplitudes are also traced back, including both radiative and diffusive damping. Interestingly, large vertical shears in the horizontal wind are noticed near the ray terminal points (at 10-12km altitude) and are thus identified to be the source for generating the observed gravity waves.
Share
Altmetrics
Final-revised paper
Preprint