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Pulsating of the generalized ion and neutral polar winds
Journal of Atmospheric and Solar-Terrestrial Physics, 2008Abstract A three-dimensional, time-dependent model of the ion and neutral polar winds was used to study their dynamic evolution during the May 4, 1998 magnetic storm. The simulation tracked the dynamics of five species (O+, H+, Hs, Os, and electrons) and covered a 9-h period.
Larry C. Gardner, Robert W. Schunk
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On neutral wind and blob motion in linear devices
Physics of Plasmas, 2003It is shown that asymmetry of neutral components going to and from the wall results in a net force, inducing blob plasma polarization and radial blob motion. This mechanism may explain experimental observations of coherent plasma density structures in linear devices. Estimates of the radial blob velocity are in agreement with experimental data.
S. I. Krasheninnikov, A. I. Smolyakov
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Solar Orbiter Neutral Solar Wind Detector
2006Neutral hydrogen atoms, which give rise to the prominent so lar Ly-alpha corona, are closely coup led to the emerging solar-wind plasma. The density ratio of neutral hydrogen to protons is minute, ~10-6; therefore, the neutral atoms are tracers in the solar wind.
M Hilchenbach +36 more
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Initial 3-D neutral polar wind
Advances in Space Research, 2006Abstract The high-latitude polar-cap region is a highly dynamic region with many interesting phenomena associated with it, including the ion and neutral polar winds, plasma patches, polar holes, etc. To elucidate these phenomena and the neutrals produced via charge exchange associated with them, a new 3-D high-latitude hydrodynamic model of the polar-
Larry C. Gardner, Robert W. Schunk
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110 km neutral zonal wind patterns
Planetary and Space Science, 1974Abstract In the height range between 105 and 115 km sporadic E formation is due exclusively to the zonal (E-W) neutral winds and both theory and experiment indicate sporadic E will occur very close to a reversal point of this zonal wind. By studying the observed heights of sporadic E-layers from a global distribution of stations we can deduce some of
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On thermospheric neutral density and wind estimation
The neutral mass density of the upper thermosphere can be determined by orbit and accelerometer data from Low Earth Orbit (LEO) satellites. Especially the accelerometers of geodetic satellites, measuring the non-gravitational accelerations acting on these satellites, are a very useful observation for precise density estimation also on very short time ...Florian Wöske +2 more
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Observation of neutral winds during an equatorial electrojet
Journal of Atmospheric and Terrestrial Physics, 1977The vertical profile of the horizontal wind in a strong equatorial electrojet is distinctly different from profiles observed previously at other times and locations. The zonal wind speed is small and varies slowly with altitude, whereas the meridional component manifests a cross-equatorial oscillation with altitude which may result from a unique ...
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Sensor Development Thermospheric Neutral Wind Measurements
2002Abstract : This report describes progress made in the development of novel new sensors to measure the thermospheric neutral wind velocity from space. The measurements depend upon the supersonic velocity of the spacecraft to determine a velocity vector from measurement of the kinetic energy of the gas along the sensor look direction and the angle of ...
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