The dayside ultraviolet aurora and convection responses to a southward turning of the interplanetary magnetic field [PDF]
We examine the large-scale ultraviolet aurora and convection responses to a series of flux transfer events that immediately followed a sharp and isolated southward turning of the IMF.
K. A. McWilliams +4 more
doaj +1 more source
Effect of convection vortices on the ionosphere
Abstract Traveling convection vortices are spatially localized, transient structures embedded in a large-scale convection pattern. They are typically aligned in the east-west direction, have a horizontal extent of 500–1000 km, appear in either the dawn or dusk sectors at about 70° latitude, and then propagate toward midnight at a speed of from 0.5–15
Schunk, Robert W. +2 more
openaire +2 more sources
Stellar wind-magnetosphere interaction at exoplanets: computations of auroral radio powers
We present calculations of the auroral radio powers expected from exoplanets with magnetospheres driven by an Earth-like magnetospheric interaction with the solar wind.
Milan, S. E., Nichols, J. D.
core +1 more source
Development of the Chinese Dual Auroral Radar Network and Preliminary Results
Led by the National Space Science Center of the Chinese Academy of Sciences, we have built a Chinese dual auroral radar network in northern China, which is called the CN‐DARN.
Jiaojiao Zhang +9 more
doaj +1 more source
Quantifying Contributions of External Drivers to the Global Ionospheric State
To advance our understanding of the global response of the ionospheric total electron content (TEC) to various external drivers, we apply entropy‐based information theory to quantify contributions of solar, interplanetary, and lower atmospheric drivers ...
Xing Meng, Olga P. Verkhoglyadova
doaj +1 more source
Multi-site observations of the association between aurora and plasma convection in the cusp/polar cap during a southeastward(By ~ |Bz|) IMF orientation [PDF]
In a case study we demonstrate the spatiotemporal structure of aurora and plasma convection in the cusp/polar cap when the interplanetary magnetic field (IMF) Bz < 0 and By ~ | Bz | (clock angle in GSM Y - Z plane: ~ 135°). This IMF orientation
P. E. Sandholt +8 more
doaj +1 more source
Seasonal effects in the ionosphere-thermosphere response to the precipitation and field-aligned current variations in the cusp region [PDF]
The seasonal effects in the thermosphere and ionosphere responses to the precipitating electron flux and field-aligned current variations, of the order of an hour in duration, in the summer and winter cusp regions have been investigated using the ...
A. A. Namgaladze +4 more
doaj +1 more source
Ionospheric convection during nonsteady interplanetary magnetic field conditions [PDF]
We investigate six cases in which the interplanetary magnetic field (IMF) orientation is changing. The assimilative mapping of ionospheric electrodynamics (AMIE) technique is used to compute the ionospheric electric potential in a 5‐min time step over the nonsteady periods.
Ridley, A.J. +3 more
openaire +2 more sources
Cold ions of ionospheric origin observed at the dayside magnetopause and their effects on magnetic reconnection [PDF]
Thesis (Ph.D.) University of Alaska Fairbanks, 2015Magnetic reconnection at the dayside magnetopause is one of the most important mechanisms that efficiently transfers solar wind particles, momentum, and energy into the magnetosphere.
Lee, Sun-Hee, 이, 선희
core
The role of the Hall effect in the global structure and dynamics of planetary magnetospheres: Ganymede as a case study [PDF]
We present high resolution Hall MHD simulations of Ganymede's magnetosphere demonstrating that Hall electric fields in ion-scale magnetic reconnection layers have significant global effects not captured in resistive MHD simulations. Consistent with local
Collinson, Glyn +3 more
core +1 more source

