Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 37, issue 6
Articles | Volume 37, issue 6
https://doi.org/10.5194/angeo-37-1005-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/angeo-37-1005-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 37, issue 6
Regular paper
 | 
08 Nov 2019
Regular paper |  | 08 Nov 2019

Climatology of intermediate descending layers (or 150 km echoes) over the equatorial and low-latitude regions of Brazil during the deep solar minimum of 2009

Ângela Machado dos Santos, Inez Staciarini Batista, Mangalathayil Ali Abdu, José Humberto Andrade Sobral, Jonas Rodrigues de Souza, and Christiano Garnett Marques Brum

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Short summary
For the first time, the climatology of intermediate descending layers (~150 km) over Brazilian equatorial and low-latitude regions during the extreme solar minimum period of 2009 was investigated. The results are interesting and innovative. For this analysis we used data of height and top frequency of intermediate layers collected from a digisonde located at São Luis and Cachoreira Paulista.
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7th Brazilian meeting on space geophysics and aeronomy