@InProceedings{ArrasMosResWicKep:2019:InSoCy,
author = "Arras, C. and Mosna, Z. and Resende, Laysa Cristina Ara{\'u}jo
and Wickert, J. and Kepkar, A.",
affiliation = "{GFZ Potsdam} and Institute of Atmospheric Physics, Aeronomy,
Prague, Czech Republic and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {GFZ Potsdam} and {GFZ Potsdam}",
title = "The Influence of the Solar Cycle on Global Sporadic E Parameters",
year = "2019",
organization = "IUGG General Assembly, 27.",
abstract = "GPS radio occultation measurements are used to observe the
occurrence and the intensity of sporadic E layers on a global
scale. We analysed data acquired by the FORMOSAT-3/COSMIC
satellites. Since their launch in April 2006, the satellites
collected about 6 million of globally distributed radio
occultation profiles. For our study, we use ionosonde data at
midlatitude and low latitude stations as well as Signal-to-Noise
Ratio (SNR) GPS L1 radio occultation profiles. The SNR is
sensitive to vertical changes in the electron density which is
reflected in large fluctuations in the according altitude range of
the profile. Therefore, vertically thin ionospheric phenomena like
sporadic E layers can easily be identified using numerical
filtering techniques. Currently, the radio occultation time series
comprises 12 years covering approximately one solar cycle. In this
study, we will focus on variations in sporadic E occurrence and
intensity in line with the solar cycle. We will show global
results, which indicate significant differences between different
latitudes. Generally, we observe an indirect correlation between
sporadic E and the solar cycle which is most clearly visible in
the magnetic equator region.",
conference-location = "Montr{\'e}al, Canada",
conference-year = "08-18 July",
urlaccessdate = "19 abr. 2024"
}