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Assessment of precision in ionospheric electron density profiles retrieved by GPS radio occultations
(Elsevier, 2014-12)
The Constellation Observing System for Meteorology Ionosphere and Climate (COSMIC) is a six satellite radio occultation mission that was launched in April 2006. The close proximity of these satellites during some months ...
A neural network based error correction method for radio occultation electron density retrieval
(Elsevier, 2015-10-19)
Abel inversion techniques have been widely employed to retrieve electron density profiles (EDPs) from radio occultation (RO) measurements, which are available by observing Global Navigation Satellite System (GNSS) satellites ...
Improvement of retrieved FORMOSAT‐3/COSMIC electron densities validated by ionospheric sounder measurements at Jicamarca
(American Geophysical Union, 2011-09-01)
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 ...
A technique for routinely updating the ITU-R database using radio occultation electron density profiles
(Springer, 2013-06-13)
Well credited and widely used ionospheric models, such as the International Reference Ionosphere or NeQuick, describe the variation of the electron density with height by means of a piecewise profile tied to the F2-peak ...
The equatorial electrojet radar observations and modeling
(Cornell University, 2006-08)
This dissertation describes a theoretical, experimental, and modeling investigation of the equatorial electrojet. We review low latitude ionospheric current models, synthesizing developments from the early times until the ...
Retrieval of thermospheric parameters from routinely observed F2-layer Ne(h) profiles at the geomagnetic equator
(EDP Open, 2013-04-08)
A principal possibility to retrieve basic thermospheric parameters (neutral temperature Tex, atomic [O] and molecular [O2] oxygen as well as molecular nitrogen [N2] concentrations) from the observed daytime electron density ...
Estimativa e análise de perfis de densidade de elétrons para a região brasileira: integração de rádio ocultação GNSS e de informações ionosféricas provenientes de estações GNSS terrestres
(Universidade Estadual Paulista (Unesp), 2021-10-08)
A rádio ocultação começou a ser utilizada para a sondagem da atmosfera de outros planetas na década de sessenta. Com o desenvolvimento dos Sistemas Globais de Navegação por Satélite (GNSS - Global Navigation Satellite ...
Comparison between bottomside ionospheric profile parameters retrieved from FORMOSAT3 measurements and ground-based observations collected at Jicamarca
(Elsevier, 2011-03-11)
This study presents the results of a comparison of three ionospheric profile parameters, B0, NmF2, and hmF2, derived from measured ionograms and the FORMOSAT3 radio occultation measurements collected over Jicamarca during ...
Ingestion of FORMOSAT-3/COSMIC GPS data into La Plata Ionospheric Model: A preliminary assessment
(Elsevier, 2017-08)
La Plata Ionospheric Model (LPIM; Brunini et al., 2011) has been upgraded to a new stage enabling the ingestion of sTEC values retrieved from GPS receivers on board the FORMOSAT-3 Constellation Observing System for ...