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Relationship between the ionospheric eastward electric field and the equatorial electrojet
(American Geophysical Union, 2010-02-26)
The equatorial electrojet (EEJ) is a strong ionospheric current along the magnetic equator driven by the day side eastward electric field. Current strength is affected by two‐stream and gradient‐drift instabilities which ...
A multi-beam incoherent scatter radar technique for the estimation of ionospheric electron density and Te/Ti profiles at Jicamarca
(Elsevier, 2013-12)
A multi-beam incoherent scatter radar technique has been developed at the Jicamarca Radio Observatory in order to maximize the number of ionospheric parameters that can be estimated simultaneously. The technique interleaves ...
Transverse-beam incoherent scatter radar measurements of F region plasma densities at Jicamarca
(American Geophysical Union, 2003-08)
Models for the self- and cross-correlation of orthogonal polarized quasi-transverse incoherent scatter returns are presented. The models are used to estimate the F region plasma densities with dual-polarization transverse-beam ...
Meteor induced ridge and trough formation and the structuring of the nighttime E‐region ionosphere
(American Geophysical Union, 2006-12-28)
When meteor‐generated plasma trails diffuse into the ionosphere they create large ambipolar electric fields mainly perpendicular to the Earth's geomagnetic field (B) and extending many kilometers from the trail along B. ...
Stratification of the low-latitude and near-equatorial F2 layer, topside ionization ledge, and F3 layer: What we know about this? A review
(Hindawi, 2012-02-06)
A large number of researches have been devoted to the formation of additional layers in the F region of the equatorial ionosphere, first of which has been published in 1940s. Originally the occurrence of such layer was ...
A general statistical instrument theory of atmospheric and ionospheric radars
(American Geophysical Union, 1991-01)
Some basic functional relationships between the statistics of the signals received in a radar and the statistics of the density fluctuations of a scattering medium are derived. They vary in their degree of generality, but ...
Theoretical effects of geomagnetic activity on low-latitude ionospheric electric fields
(American Geophysical Union, 2005-05-27)
The influence of geomagnetic activity on middle‐ and low‐latitude thermospheric winds and ionospheric electric fields is investigated using model results from the National Center for Atmospheric Research Thermosphere‐Ion ...
Ionospheric Specification and Space Weather Forecasting With an HF Beacon Network in the Peruvian Sector
(American Geophysical Union, 2018-08-14)
A network of high‐frequency (HF) transmitters and receivers used for ionospheric specification is being installed in Peru. The HF transmitters employ multiple frequencies and binary phase coding with pseudorandom noise, ...
Reflection and transmission in the ionosphere considering collisions in a first approximation
(EMW Publishing, 2008-12)
Reflection and transmission coefficients (R and T) of high frequency waves propagating in the ionosphere are studied taking collisions into account. This was done approximating the expression in the refractive index using ...
Mid-latitude ionospheric effects of a great geomagnetic storm
(Elsevier, 2004-08)
On March 13, 1989 magnetic storm effects on the mid- and low-latitude ionosphere were investigated. For this, peak electron density of F2-layer (NmF2) data from four chains of ionospheric stations located in the geographic ...