Publication Date:
2020-11-19
Description:
We study ionospheric scintillation on GNSS signals at equatorial latitudes to draw a climatological picture
of the low latitude ionosphere in the Brazilian sector during the ascending phase of the upcoming 2013
solar maximum. Such data have been acquired during the early stage of the CIGALA project (http://cigala.
galileoic.org/), funded by the European Commission under the 7th Framework Program and the outcome
of this work is part of the scientific achievements of the project itself. The considered network is based
on the novel PolaRxS receivers, developed and deployed specifically to comply with the aims of the FP7
project. The PolaRxS is able to monitor ionospheric scintillation for all operational and upcoming GNSS
constellations (GPS, GLONASS, Compass, GALILEO) and corresponding frequencies in the L-band. The
ionosphere over the Brazilian territory, being close to the southern crest of the Equatorial Ionospheric
Anomaly (EIA), is heavily affected by intense scintillation conditions. The sector under investigation is
also very peculiar with respect to other low latitude regions, because of its proximity to the South
Atlantic Magnetic Anomaly (SAMA). The application of the Ground Based Scintillation Climatology
(GBSC) technique, for the first time simultaneously on GPS and GLONASS data and on both L1 and L2
frequencies, highlights the joint effect of the EIA and of the SAMA in producing the irregularities leading
to scintillation.
Description:
Published
Description:
199-206
Description:
2A. Fisica dell'alta atmosfera
Description:
JCR Journal
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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