On the variability of the quarter-diurnal tide in the MLT over Brazilian low-latitude stations

Autor: Amitava Guharay, Paulo Prado Batista, Ricardo Arlen Buriti, Nelson Jorge Schuch
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Earth, Planets and Space, Vol 70, Iss 1, Pp 1-14 (2018)
Druh dokumentu: article
ISSN: 1880-5981
DOI: 10.1186/s40623-018-0910-9
Popis: Abstract The characteristic features of the quarterdiurnal tide (QDT) in the mesosphere and lower thermosphere (MLT) are investigated using meteor radar observations from three low-latitude southern hemispheric stations, Sao Joao do Cariri (7.4°S, 36.5°W), Cachoeira Paulista (22.7°S, 45°W) and Santa Maria (29.7°S, 53.7°W) in 2005. The QDT shows consistent appearance with a weak enhancement during late summer and fall interval. The QDT amplitudes are found to be much smaller (
Databáze: Directory of Open Access Journals