Observations of Inertial-gravity Waves Observed from Long-lasting Meteor Trail Echoes
M. Satyavani
Department of Physics, Andhra University, Visakhapatnam - 530 003, India.
P. S. Brahmanandam *
Department of Basic Science, Shri Vishnu Engineering College for Women, Bhimavaram - 534 202, India.
P. S. V. Subba Rao
Institute of Space Science, National Central University, Chung-Li, Taiwan, R.O.C.
C. T. Cheng
Department of Physics, Andhra University, Visakhapatnam - 530 003, India.
Y. H. Chu
Department of Physics, Andhra University, Visakhapatnam - 530 003, India.
*Author to whom correspondence should be addressed.
Abstract
Horizontal background wind in the mesosphere and lower thermosphere region of the Earth’s atmosphere deduced from the temporal displacement of a long- lasting meteor trail was estimated and investigated in this paper. The meteor trail echoes lasting more than 23 seconds in height range between 95 and 108 km as measured using the interferometry technique implemented at the Chung-Li 52 MHz radar, Chung-Li, Taiwan. The 3-meter electron density irregularities embedded in the meteor trail, which were responsible for the radar returns, were found without field-aligned property. Hodograph analysis reveals that the existence of an upward propagating inertia-gravity wave is associated with the vertical wavelength of 11.3 km. The wave-induced wind velocity and temperature perturbations combined with the background temperature profile of mass spectrometer and incoherent scatter (MSIS) model was used to estimate the height variation of the Richardson number (Ri). It is found that the feature Ri < 0.25 occurred in height range from 98 to 99 km, which implies that the wave is very likely broken in this height region through convective instability that was associated with negative temperature gradient induced by the gravity wave. The characteristics of echo power and spectral width associated with the wave-breaking turbulences are also discussed.
Keywords: Mesosphere and lower thermosphere, 52 MHz Chung-Li very high frequency radar, meteors, MSIS model.
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Fritts DC, Isler JR, Andreassen O. Gravity wave breaking in two and three dimensions: 1. Three-dimensional evolution and instability structure. J. Geophys. Res. 1994;8109–8123.
Schoeberl MR, Strobel DF, Apruzese JP. A Numerical Model of Gravity Wave Breaking and Stress in the Mesosphere. J. Geophys. Res. 1983;5249–5259.
Dewan E M, Good RE. Saturation and the Universal Spectrum for Vertical Profiles of Horizontal Scalar Winds in the Atmosphere. J. Geophys. Res. 1986; 2742–2748.
Kelley MC, Alcala C, Cho JYN. Detection of a meteor contrail and meteoric dust in the Earth’s upper mesosphere. Journal of Atmospheric and Terrestrial Physics. 1998; 359-369.
Oleynikov AN, Jacobi Ch, Sosnovchik DM. Parameters of internal gravity waves in the mesosphere-lower thermosphere region derived from meteor radar wind measurements. Ann. Geophys. 2005; 3431–3437.
Antonita TM, Ramkumar G, Kishore Kumar K, Sunil Kumar SV. Quantification of gravity wave forcing in driving the stratospheric Quasi‐Biennial Oscillation. Geophys. Res. Lett.; 2008.
DOI: 10.1029/2008GL033960.
Mitchell NJ, Beldon C L. Gravity waves in the mesopause region observed by meteor radar, 1: A simple measurement technique, J. Atmos. Sol. Terr. Phys., 2009, 866–874.
Spargo AJ, Reid IM, MacKinnon AD. Multistatic meteor radar observations of gravity-wave–tidal interaction over southern Australia, Atmos. Meas. Tech. 2019;4791–4812.
Namboothiri SP, Tsuda T, Tsutsumi M, Nakamura T, Nagasawa C, Abo M. Simultaneous observations of mesospheric gravity wave with the MU radar and a sodium lidar. J. Geophys. Res. 1996; 1057-4063.
Dao PD, Farley R, Tao X, Gardner C S. Lidar Observations of the Temperature Profile between 25 and 103 km: Evidence of Strong Tidal Perturbation. Geophys. Res. Lett., 1995;2825–2828.
Hecht JH. Instability layers and airglow imaging, Rev. Geophys; 2004.
DOI:10.1029/2003RG000131.
Tsuda T, Kato S, Yokoi T, Inoue T, Yamamoto M, VanZandt TE, Fukao S, Sato T. Gravity waves in the mesosphere observed with the middle and upper atmosphere radar. Radio Sci. 1990;1005 1018.
Nakamura T, Tsuda T, Yamamoto M, Fukao S, Kato S. Characteristics of Gravity Waves in the Mesosphere Observed With the Middle and Upper Atmosphere Radar 2. Propagation Direction. J. Geophys. Res. 1993;8911–8923.
Chu YH, Su CL, Larsen MF, Chao CK. First measurements of neutral wind and turbulence in the mesosphere and lower thermosphere over Taiwan with a chemical release experiment. J. Geophys. Res; 2007.
DOI:10.1029/2005JA011560
Fritts DC. Gravity wave saturation in the middle atmosphere: A review of theory and observations. Rev. Geophys. 1984;275 308.
Fritts DC, Laughman B,Wang L, Lund TS, and Collins RL. Gravity wave dynamics in a mesospheric inversion layer: 1. Reflection, trapping, and instability dynamics. Journal of Geophysical Research: Atmospheres. 2018;626–648.
Kim Y-J, Eckermann SD, Chun H-Y. An overview of the past, present and future of gravity-wave drag parametrization for numerical climate and weather prediction models. Atmos. Ocean. 2003;65–98.
Ern M, Preusse P, Gille JC, Hepplewhite CL, Mlynczak MG, Russell JM, Riese M. Implications for atmospheric dynamics derived from global observations of gravity wave momentum flux in stratosphere and mesosphere. J. Geophys. Res; 2011.
Available:https://doi.org/10.1029/2011JD015821
Chapin E, Kudeki E. Plasma wave excitation on meteor trails in the equatorial Electrojet. Geophysical Research Letters. 1994;2433-2436.
Reddi CR, Nair SM, Meteor trail induced backscatter in MST radar echoes. Geophys. Res. Lett. 1998;473.
Sugar GR. Radio propagation by reflection from meteor trails. Proc. IEEE 52. 1964; 116-136.
Farley DT, Ierkic HM, Fejer BG. Radar interferometry: A new technique for studying plasma turbulence in the ionosphere, J. Geophys. Res. 1981;86: 1476-1479.
Wang CY, Chu YH. Interferometry investigations of blob‐like sporadic E plasma irregularity using the Chung‐Li VHF radar. J. Atmos. Sol. Terr. Phys. 2001; 123–133.
Chu Y‐H, Wang C‐Y. Plasma structures of 3‐meter type 1 and type 2 irregularities in nighttime mid-latitude sporadic E region, J. Geophys. Res. 2002;1447.
Gossard EE, Hooke WH. Waves in the Atmosphere, Atmospheric Infrasound and Gravity Waves—Their Generation and Propagation. Elsevier Science, Amsterdam; 1975.
Hedin AE et al. Revised global model of thermospheric winds using satellite and ground-based observations, J. Geophys. Res. 1991;7657-7688.
Close SM, Oppenheim MM, Hunt AS, Dyrud LP. Scattering characteristics of high-resolution meteor head echoes detected at multiple frequencies. J. Geophys. Res. 2002;1295.
Oppenheim MM, vom Endt AF, Dyrud LP. Electrodynamics of meteor trail evolution in the equatorial E‐region ionosphere, Geophys. Res. Lett., 2000; 3173– 3176.
Pearson JM, Sharman RD. Prediction of energy dissipation rates for aviation turbulence. Part II: Nowcasting convective and nonconvective turbulence. J. Appl. Meteor. Climatol. 2017;339–351.