Articles | Volume 24, issue 9
Research article
08 May 2024
Research article |  | 08 May 2024

Studies on the propagation dynamics and source mechanism of quasi-monochromatic gravity waves observed over São Martinho da Serra (29° S, 53° W), Brazil

Cristiano M. Wrasse, Prosper K. Nyassor, Ligia A. da Silva, Cosme A. O. B. Figueiredo, José V. Bageston, Kleber P. Naccarato, Diego Barros, Hisao Takahashi, and Delano Gobbi

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Ann. Geophys., 40, 665–672,,, 2022
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Sources of concentric gravity waves generated by a moving mesoscale convective system in southern Brazil
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Subject: Dynamics | Research Activity: Atmospheric Modelling and Data Analysis | Altitude Range: Mesosphere | Science Focus: Physics (physical properties and processes)
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Cited articles

Bageston, J. V., Wrasse, C. M., Gobbi, D., Takahashi, H., and Souza, P. B.: Observation of mesospheric gravity waves at Comandante Ferraz Antarctica Station (62° S), Ann. Geophys., 27, 2593–2598,, 2009. a, b, c
Bageston, J. V., Wrasse, C. M., Batista, P. P., Hibbins, R. E., C Fritts, D., Gobbi, D., and Andrioli, V. F.: Observation of a mesospheric front in a thermal-doppler duct over King George Island, Antarctica, Atmos. Chem. Phys., 11, 12137–12147,, 2011. a
Bertin, F., Testud, J., Kersley, L., and Rees, P.: The meteorological jet stream as a source of medium scale gravity waves in the thermosphere: an experimental study, J. Atmos. Terr. Phys., 40, 1161–1183,, 1978. a, b
Chimonas, G. and Hines, C.: Doppler ducting of atmospheric gravity waves, J. Geophys. Res.-Atmos., 91, 1219–1230,, 1986. a
CPTEC: Center for Weather Forecasting and Climate Studies (CPTEC/INPE), (last access: 10 April 2023), 2023. a
Short summary
This present work investigates the propagation dynamics and the sources–source mechanisms of quasi-monochromatic gravity waves (QMGWs) observed between April 2017 and April 2022 at São Martinho da Serra. The QMGW parameters were estimated using a 2D spectral analysis, and their source locations were identified using a backward ray-tracing model. Furthermore, the propagation conditions, sources, and source mechanisms of the QMGWs were extensively studied.
Final-revised paper