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Mostrando ítems 21-30 de 1878
Field-aligned currents in the magnetosphere.Field-aligned currents in the magnetosphere.
(Instituto de Geofísica, 2013)
Ionospheric response to the 2009 sudden stratospheric warming over the equatorial, low, and middle latitudes in the South American sector
(American Geophysical Union, 2015-09)
The present study investigates the ionospheric total electron content (TEC) and F-layer response in the Southern Hemisphere equatorial, low, and middle latitudes due to major sudden stratospheric warming (SSW) event, which ...
Interplanetary electric fields and their relationship to low-latitude electric fields under quiet and disturbed conditions
(Elsevier, 2007-07)
Recent studies have demonstrated that ground-based magnetometer observations can be used to infer realistic, daytime vertical E×B drift velocities in the Peruvian and Philippine longitude sectors. It has also been demonstrated ...
Some ionospheric storm effects at equatorial and low latitudes
(Elsevier, 2014-04)
In this paper, the response of the equatorial and low latitude ionosphere to three intense geomagnetic storms occurred in 2002 and 2003 is reported. For that, critical frequency of F2-layer foF2 and the peak height hmF2 ...
Some ionospheric storm effects at equatorial and low latitudes
(Elsevier, 2014-03-04)
In this paper, the response of the equatorial and low latitude ionosphere to three intense geomagnetic storms occurred in 2002 and 2003 is reported. For that, critical frequency of F2-layer foF2 and the peak height hmF2 ...
Assessing the GNSS scintillation climate over Brazil under increasing solar activity
(2013-12-01)
We study ionospheric scintillation on GNSS signals at equatorial latitudes to draw a climatological picture of the low latitude ionosphere in the Brazilian sector during the ascending phase of the upcoming 2013 solar ...
Ionosfera de bajas latitudes: efectos sobre señales de satelites recibidas en TucumanInosphere at low latitude: effects on radio signals of satellites recieved in Tucumán
(Universidad Complutense de Madrid, 2008-12)
Se mencionan algunos de los efectos que la ionosfera produce en las señales de radio que la atraviesan. Además, se describen las características de la ionosfera ecuatorial y de baja latitud ya que es una de las regiones ...
Electrodynamics in the low and middle latitude ionosphere: a tutorial
(Elsevier, 2004-03-24)
Electric fields in the low and middle latitude ionosphere result from currents driven internally by neutral winds and gravity, and externally by applied potentials. The resulting internal electric polarization fields arise ...
Propagation of gravity waves and spread F in the low-latitude ionosphere over Tucumán, Argentina, by continuous Doppler sounding: first results
(American Geophysical Union, 2014-08)
Results of systematic analysis of propagation directions and horizontal velocities of gravity waves (GWs) and spread F structures in low-latitude ionosphere (magnetic inclination ~27°) in Tucumán region, Argentina, are ...
Latitudinal pattern of the thermal sensitivity of running speed in the endemic lizard Liolaemus multimaculatus
(John Wiley & Sons Inc., 2021-09)
Physiological performance in lizards may be affected by climate across latitudinal or altitudinal gradients. In the coastal dune barriers in central-eastern Argentina, the annual maximum environmental temperature decreases ...