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Improvement of retrieved FORMOSAT-3/COSMIC electron densities validated by ionospheric sounder measurements at Jicamarca
(2011-09-01)
Article.
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Article.
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Inversion techniques applied to GPS‐LEO radio occultation data allow the retrieval of
accurate and worldwide‐distributed refractivity profiles, which, in the case of the
ionosphere, can be converted into electron densities ...
Neural network based model for global Total Electron Content forecasting
(EDP Sciences, 2020-03)
Article.
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Article.
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We introduce a novel empirical model to forecast, 24 h in advance, the Total Electron Content (TEC) at global scale. The technique leverages on the Global Ionospheric Map (GIM), provided by the International GNSS Service ...
The ionosphere prediction service prototype for GNSS users
(EDP Sciences, 2019)
Article.
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Article.
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The effect of the Earth’s ionosphere represents the single largest contribution to the Global Navigation Satellite System (GNSS) error budget and abnormal ionospheric conditions can impose serious degradation on GNSS system ...
Comparative testing of four ionospheric models driven with GPS measurements
(2011-07-28)
Article.
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Article.
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In the context of the European Space Agency/European Space Operations Centre
funded Study “GNSS Contribution to Next Generation Global Ionospheric Monitoring,”
four ionospheric models based on GNSS data (the Electron ...
Large and small-scale structures of the local Galactic disc: a maximum entropy approach to the stellar velocity distribution
(2010-02)
Article.
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Article.
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An analytical model based on the maximum entropy approach is proposed to describe the eventual asymmetries of the velocity
distribution, which are collected through its sample moments. If an extended set of moments is ...
Disc and halo kinematic populations from HIPPARCOS and Geneva-Copenhagen surveys of the solar neighbourhood
(2010-02)
Article.
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Article.
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Discontinuities in the local velocity distribution associated with stellar populations are studied using the Maximum Entropy of the
Mixture Probability from HIerarchical Segregation (MEMPHIS) improved statistical method, ...
Eccentricity samples: implications on the potential and the velocity distribution
(2017)
Article.
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Article.
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Planar and vertical epicycle frequencies and local angular velocity are related to the derivatives up to the second order of the local potential and can be used to test the shape of the potential from stellar disc samples. ...