Results 21 to 30 of about 376,177 (258)

First E region observations of mesoscale neutral wind interaction with auroral arcs [PDF]

open access: yes, 2010
We report the first observations of E region neutral wind fields and their interaction with auroral arcs at mesoscale spatial resolution during geomagnetically quiet conditions at Mawson, Antarctica.
Aikio   +80 more
core   +1 more source

Spatiotemporal Evolution and Drivers of the Four Ionospheric Storms over the American Sector during the August 2018 Geomagnetic Storm

open access: yesAtmosphere, 2023
The spatiotemporal variations and mechanisms of the ionospheric storms over the American sector during the August 2018 geomagnetic storm are investigated.
Changzhi Zhai   +3 more
doaj   +1 more source

On the hydrogen neutral outflowing disks of B[e] supergiants [PDF]

open access: yes, 2006
(abridged) B[e] supergiants are known to possess geometrically thick dusty disks. Disk-forming wind models have, however, been found to be insufficient in reproducing the observed dust emission.
F. X. de Araújo   +14 more
core   +4 more sources

Field and Wind Tunnel Experiments of Wind Field Simulation in the Neutral Atmospheric Boundary Layer

open access: yesAtmosphere, 2022
To investigate the pollutant dispersion of a nuclear power plant, a field tracing experiment was carried out in neutral stratification weather with the main wind direction SSW.
Dong Xie   +5 more
doaj   +1 more source

A neutral wind instrument for nano-satellite platforms

open access: yesReview of Scientific Instruments, 2018
Here we describe the first neutral wind sensor developed specifically for use on resource limited nano-satellite platforms. The instrument is a next generation redesign of the ram wind sensor flown on the Communications/Navigation Outage Forecasting System satellite for measurements of neutral velocity, temperature, and composition.
L. J. Kordella   +7 more
openaire   +5 more sources

Comparison of surface wind speed and wind speed profiles in the Taklimakan Desert [PDF]

open access: yesPeerJ, 2022
Near-surface (10 m) wind speed (NWS) plays a crucial role in many areas, including the hydrological cycle, wind energy production, and the dispersion of air pollution.
Xinchun Liu   +3 more
doaj   +2 more sources

Characterization of F-region neutral wind response times and its controlling factors during substorms

open access: yesFrontiers in Astronomy and Space Sciences
Ion-neutral coupling is responsible for dissipating energy deposited into the high-latitude ionosphere during geomagnetically active periods. The neutral wind response time, or the ion-neutral coupling efficiency, is not well characterized, with a wide ...
Katherine Davidson   +4 more
doaj   +1 more source

Variations of topside ionospheric electron density near the dawn terminator in relation to geomagnetic activity

open access: yesJournal of Space Weather and Space Climate, 2017
A statistical study to determine the influence of geomagnetic disturbances on the ionosphere across the dawn terminator at subauroral and middle latitudes is performed, based on the vertical electron density profiles measured by the GPS Occultation ...
Tam Sunny W.Y.   +2 more
doaj   +1 more source

Ionization structure of hot components in symbiotic binaries during active phases

open access: yes, 2012
During active phases of symbiotic binaries, an optically thick medium in the form of a flared disk develops around their hot stars. During quiescent phases, this structure is not evident.
Carikova, Zuzana, Skopal, Augustin
core   +1 more source

Mass-loading of bow shock pulsar wind nebulae [PDF]

open access: yes, 2015
We investigate the dynamics of bow shock nebulae created by pulsars moving supersonically through a partially ionized interstellar medium. A fraction of interstellar neutral hydrogen atoms penetrating into the tail region of a pulsar wind will undergo ...
Lyutikov, M., Morlino, G., Vorster, M.
core   +2 more sources

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