Search Results - "Radicella, S.M"

Middle‐ and low‐latitude ionosphere response to 2015 St. Patrick's Day geomagnetic storm by Nava, B., Rodríguez‐Zuluaga, J., Alazo‐Cuartas, K., Kashcheyev, A., Migoya‐Orué, Y., Radicella, S.M., Amory‐Mazaudier, C., Fleury, R.

“…This paper presents a study of the St Patrick's Day storm of 2015, with its ionospheric response at middle and low latitudes. The effects of the storm in each…”
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A new version of the NeQuick ionosphere electron density model by Nava, B., Coïsson, P., Radicella, S.M.

“…NeQuick is a three-dimensional and time dependent ionospheric electron density model developed at the Aeronomy and Radiopropagation Laboratory of the Abdus…”
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Topside electron density in IRI and NeQuick: Features and limitations by Coïsson, P., Radicella, S.M., Leitinger, R., Nava, B.

“…The topside ionosphere modeling suffers from the relative scarcity of experimental electron density data. Different modeling approaches have been applied in…”
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The evolution of the DGR approach to model electron density profiles by Radicella, S.M., Leitinger, R.

“…The paper describes the evolution of the “profiler” proposed by Di Giovanni and Radicella (1990) to calculate the electron density distribution with height up…”
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On the use of NeQuick topside option in IRI-2007 by Coïsson, P., Nava, B., Radicella, S.M.

“…The latest version of IRI includes various options for the computation of the topside electron density profile. One of the possible choices is based on NeQuick…”
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Global ionospheric maps from GPS observations using modip latitude by Azpilicueta, F., Brunini, C., Radicella, S.M.

“…In recent years, the new possibility of estimating the global distribution of free electrons in the ionosphere by means of GPS has opened a very active and…”
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NeQuick bottomside analysis at low latitudes by Coïsson, P., Nava, B., Radicella, S.M., Oladipo, O.A., Adeniyi, J.O., Gopi Krishna, S., Rama Rao, P.V.S., Ravindran, S.

“…NeQuick ionospheric electron density model produces the full electron density profile in the ionosphere using the F2 layer peak values ( foF2 and hmF2) as…”
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Local TEC modelling and forecasting using neural networks by Tebabal, A., Radicella, S.M., Nigussie, M., Damtie, B., Nava, B., Yizengaw, E.

“…Modelling the Earth's ionospheric characteristics is the focal task for the ionospheric community to mitigate its effect on the radio communication, and…”
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Feed forward neural network based ionospheric model for the East African region by Tebabal, A., Radicella, S.M., Damtie, B., Migoya-Orue’, Y., Nigussie, M., Nava, B.

“…In this paper, a neural network based regional ionospheric model is developed using GPS-TEC data from 01 January 2012 to 31 December 2015. For this purpose,…”
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Evaluating the accuracy of ionospheric range delay corrections for navigation at low latitude by Meza, A., Gende, M., Brunini, C., Radicella, S.M.

“…La Plata Ionospheric Model (LPIM) corrections in ionospheric range delay can be studied by analysing their effect on geodetic positioning. To evaluate these…”
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Thickness parameters in the empirical modeling of bottomside electron density profiles by Radicella, S.M., Alazo-Cuartas, K., Migoya-Orué, Y., Kashcheyev, A.

“…All empirical models of the ionosphere electron density profile rely, among other parameters, on the efficient description of the thickness of the F2 layer…”
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An improved empirical formulation of an ionosphere bottomside electron density profile thickness parameter by Alazo-Cuartas, K., Radicella, S.M.

“…An improved empirical formulation for the characterization of the “base point” of the bottomside ionospheric electron density profile is proposed. The “base…”
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Correlation analysis of normalized ROTI and S4 as observed during different geomagnetic conditions of the 2013 September equinox over the stations within EIA African sector by Abe, O.E., Migoya-Orué, Y.O., Radicella, S.M.

“…It has been a concern of space scientists and engineers for many decades to have a well-defined proxy to characterize the fluctuations experienced by…”
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Validation of the NeQuick 2 and IRI-2007 models in East-African equatorial region by Nigussie, M., Radicella, S.M., Damtie, B., Nava, B., Yizengaw, E., Groves, K.

“…This paper examines the performances of NeQuick 2 and IRI-2007 ionospheric empirical models in describing the monthly median characteristics of the equatorial…”
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Scintillations observed at Tucuman as observed from GPS signals. First results by Ezquer, R.G., Kintner, P.M., Cabrera, M.A., Radicella, S.M., Forte, B.

“…The occurrence of ionospheric irregularities was studied using Global Positioning System (GPS) measurements at Tucumán (26.9° S, 294.6° E; geomag. lat.:…”
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NeMars: An empirical model of the martian dayside ionosphere based on Mars Express MARSIS data by Sánchez-Cano, B., Radicella, S.M., Herraiz, M., Witasse, O., Rodríguez-Caderot, G.

“…•Empirical model for the full dayside electron density of the martian ionosphere.•The model is mainly based on AIS MARSIS data and radio occultation.•The model…”
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Variation of bottomside profile parameters B0 and B1 at high solar activity for an equatorial station by Adeniyi, J.O, Radicella, S.M

“…Diurnal and seasonal variations in experimental profile parameters B0 and B1 are examined, at high solar activity, for Ouagadougou, Burkina Faso, an equatorial…”
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Validation of NeQuick 2 model over West African equatorial region using GNSS-derived Total Electron Content data by Yao, J.N., Nava, B., Obrou, O.K., Radicella, S.M.

“…The NeQuick 2 has been implemented as a climatological model with the goal to represent the typical median conditions of the ionosphere. Several investigations…”
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Assessment study of ionosphere correction model using single- and multi-shell algorithms approach over sub-Saharan African region by Abe, O.E., Paparini, C., Ngaya, R.H., Radicella, S.M., Nava, B., Kashcheyev, A.

“…•Assessment of ionospheric correction models for SBAS applications over African.•The residual error along the IGPs over the region were evaluated models…”
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Analysis of a grid ionospheric vertical delay and its bounding errors over West African sub-Saharan region by Abe, O.E., Otero Villamide, X., Paparini, C., Radicella, S.M., Nava, B.

“…Investigating the effects of the Equatorial Ionization Anomaly (EIA) ionosphere and space weather on Global Navigation Satellite Systems (GNSS) is very…”
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