Articles | Volume 38, issue 2
Ann. Geophys., 38, 507–516, 2020
https://doi.org/10.5194/angeo-38-507-2020

Special issue: 7th Brazilian meeting on space geophysics and aeronomy

Ann. Geophys., 38, 507–516, 2020
https://doi.org/10.5194/angeo-38-507-2020

Regular paper 16 Apr 2020

Regular paper | 16 Apr 2020

Investigation of sources of gravity waves observed in the Brazilian equatorial region on 8 April 2005

Oluwakemi Dare-Idowu et al.

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Latest update: 01 Aug 2021
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Short summary
Some strong gravity wave activity occurred and was observed on 8 April 2005. This work reports the spectral characteristics of these waves using OH airglow images captured by the all-sky imager installed at São João do Cariri (7.4° S, 36.5° W). A preferential propagation direction was observed due to the positioning of the source and also due to the wind filtering effect. Furthermore, the source of these waves was identified by performing reverse-ray tracing analysis.