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Modelling ionospheric scintillation under the crest of the equatorial anomaly
Language
English
Obiettivo Specifico
2A. Fisica dell'alta atmosfera
Status
Published
JCR Journal
JCR Journal
Title of the book
Issue/vol(year)
/60 (2017)
Pages (printed)
1698–1707
Issued date
2017
Abstract
WAM is realized making use of the plasma density data collected via the retarding potential analyser on board the Dynamics Explorer
2 spacecraft, capable to model the scintillation climatology over the northern hemisphere high latitude ionosphere. More recently, WAM
has been tuned to model the ionospheric scintillations also over the equatorial latitudes. The effort has been done to support the
CIGALA (Concept for Ionospheric Scintillation Mitigation for Professional GNSS in Latin America) project in the assessment of
the scintillations climatology over Latin America.
The concept of the new release of WAM is the same already adopted for the high latitudes: the in situ measurements, supplemented
with an ionospheric model and with the irregularity anisotropy model, are treated to describe the morphology of scintillation, provided a
suitable propagation model is used. Significant differences have been included in the low latitudes release to account for the anisotropy of
the irregularities and for strong scattering regime. The paper describes the new WAM formulation and presents comparisons of the
model predictions with the actual measurements collected in Brazil.
2 spacecraft, capable to model the scintillation climatology over the northern hemisphere high latitude ionosphere. More recently, WAM
has been tuned to model the ionospheric scintillations also over the equatorial latitudes. The effort has been done to support the
CIGALA (Concept for Ionospheric Scintillation Mitigation for Professional GNSS in Latin America) project in the assessment of
the scintillations climatology over Latin America.
The concept of the new release of WAM is the same already adopted for the high latitudes: the in situ measurements, supplemented
with an ionospheric model and with the irregularity anisotropy model, are treated to describe the morphology of scintillation, provided a
suitable propagation model is used. Significant differences have been included in the low latitudes release to account for the anisotropy of
the irregularities and for strong scattering regime. The paper describes the new WAM formulation and presents comparisons of the
model predictions with the actual measurements collected in Brazil.
Type
article
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