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

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

doi:https://doi.org/10.5194/acp-24-5405-2024

Articles | Volume 24, issue 9

https://doi.org/10.5194/acp-24-5405-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-24-5405-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

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

Data sets

MERRA-2 inst3_3d_asm_Np: 3d, 3-hourly, instantaneous, pressure-level, assimilation, assimilated meteorological fields V5. 12.4 GMAO https://doi.org/10.5067/WWQSXQ8IVFW8

NCEP-NCAR Reanalysis 1 NOAA https://psl.noaa.gov/data/gridded/data.ncep.reanalysis.html

Video supplement

July 20-21, 2017 Quasi-Monochromatic Gravity Wave Event Cristiano M. Wrasse and Prosper K. Nyassor https://doi.org/10.5446/65557

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.