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Storm-time equatorial thermospheric dynamics and electrodynamics
(Utah State University, 2020)
It presents the first comprehensive study of the equatorial thermospheric dynamics and ionospheric electrodynamics over Peru following enhanced energy depositions into the high-latitude ionosphere during geomagnetic storms. ...
Stormtime dynamics of the global thermosphere and equatorial ionosphere
(European Geosciences Union, 2009-05-05)
During magnetic storms the development of equatorial plasma bubbles (EPBs) and distributions of thermospheric densities are strongly influenced by the histories of imposed magnetospheric electric (εM) fields. Periods of ...
Measurements of the dynamics and coupling of the equatorial thermosphere and the F-region ionosphere in Peru
(Elsevier, 1988)
Simultaneous Fabry-Perot Interferometer (FPI) and Incoherent Scatter Radar (ISR) observations from Arequipa and Jicamarca, Peru, respectively, were obtained on 24 and 25 September 1986, during which there was substantial ...
Modeling the low-latitude thermosphere and ionosphere
(Elsevier, 2002-08)
The National Center for Atmospheric Research thermosphere/ionosphere/electrodynamic general circulation model (TIEGCM) is one of the few models that self-consistently solves the coupled equations for the neutral atmosphere ...
Equatorial spread-F initiation: Post-sunset vortex, thermospheric winds, gravity waves
(Elsevier, 2007-12)
We present experimental evidence and modeling results which indicate that eastward thermospheric wind is the primary controlling factor of equatorial spread-F initiation in the post-sunset ionosphere. Eastward wind-driven ...
CEDAR Electrodynamics Thermosphere Ionosphere (ETI) Challenge for systematic assessment of ionosphere/thermosphere models: NmF2, hmF2, and vertical drift using ground‐based observations
(American Geophysical Union, 2011-12-31)
Objective quantification of model performance based on metrics helps us evaluate the current state of space physics modeling capability, address differences among various modeling approaches, and track model improvements ...
Post-Storm Middle and Low-Latitude Ionospheric Electric Fields Effects
(Springer, 2016-12-05)
The Earth’s upper atmosphere and ionosphere undergoes large and complex perturbations during and after geomagnetic storms. Thermospheric winds driven by enhanced energy and momentum due to geomagnetic activity generate ...
Dynamical and magnetic field time constants for Titan's ionosphere: Empirical estimates and comparisons with Venus
(American Geophysical Union, 2010-10)
Plasma in Titan´s ionosphere flows in response to forcing from thermal pressure gradients, magnetic forces, gravity, and ion-neutral collisions. This paper takes an empirical approach to the ionospheric dynamics by using ...
Some effects in the upper atmosphere during geomagnetic storms
(Elsevier, 2011-03)
This paper examines the response of the high latitude ionosphere- thermosphere system during two intense geomagnetic storms. For that, data taken by instruments on board Dynamic Explorer 2 taken at heights of the F2-layer ...