@InProceedings{BrumSantPere:2023:LaVaAt,
author = "Brum, Christiano Garnett Marques and Santos, Angela Machado dos
and Perez, Giana",
affiliation = "{Arecibo Observatory} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Stanford University}",
title = "Latitudinal variation of atmospheric solar tides modes of the
ionospheric peak parameters over the American sector during the
deep solar minimum of the transition between solar cycles #23 and
#24",
booktitle = "Proceedings...",
year = "2023",
organization = "AGU FAll Meeting",
publisher = "AGU",
abstract = "This work will present the contribution of solar atmospheric tides
(amplitude, diurnal, semidiurnal, and terdiurnal modes) on the
variability of the parameters of critical frequency (foF2) and
peak height of the F2-layer (hmF2) in the American sector during
the transition of solar cycles #23 and #24, a period considered
one of the lowest solar activities of the modern era. For that,
the digisonde data available in the GIRO data center were analyzed
(12 stations), and the solar modes were evaluated regarding their
amplitude, latitude, and seasonal dependence. The results
preliminary showed that the amplitude of foF2 and hmF2, and the
different components of tides seem to be strongly dependent on
latitude. In general, the amplitude and tides modes are higher for
the regions near the equator, except for hmF2 diurnal tide, which
is more intense at latitudes further distant from the equator.
However, for this same mode, it was possible to note that there is
a decrease in the intensity of hmF2 for latitudes higher than 60o,
which is the opposite of what is observed in the amplitude of the
peak height parameter. Moreover, the seasonal variability of the
amplitude of hmF2 in most of the cases presented an annual and
semiannual component. Likewise, what was observed in foF2, the
variability in the amplitude and different modes of tides of hmF2
are higher over the sectors located in the southern hemisphere.
Similar to foF2, the terannual behavior also was observed in some
localities both in the northern and the southern hemispheres.",
conference-location = "San Francisco, CA",
conference-year = "11-15 Dec. 2023",
label = "self-archiving-INPE-MCTIC-GOV-BR",
language = "en",
urlaccessdate = "27 abr. 2024"
}