Results 131 to 140 of about 6,414 (152)

The Exosphere and Geocorona

1972
This paper reviews the observational evidence on the hydrogen geocorona including its density, vertical structure, and the nature of its diurnal and other solar-related variability. The relationship of observationally-derived models of the exosphere and geocorona to the thermosphere is indicated.
openaire   +1 more source

Exospheres and planetary escape

2002
A summary is given of the theory of an exosphere, the outermost region of an atmosphere where collisions can usually be neglected, and of escape of its lighter constituents. Special cases, such as energy-limited hydrodynamic loss, are briefly discussed. Surface-bounded exospheres are treated in Chapter III.3.
openaire   +1 more source

Exospheric model of the plasmasphere

Journal of Atmospheric and Solar-Terrestrial Physics, 2001
Abstract ISEE observations indicate that after prolonged quiet periods, the saturated equatorial density decreases exponentially with the radial distance in the plasmasphere. No hydrostatic barometric models fit the saturated equatorial density profiles, since those obtained with barometric maxwellian or lorentzian kinetic models decrease more slowly
V. Pierrard, J. Lemaire
openaire   +1 more source

Atmosphere and Lowermost Exosphere

2017
The anthropogenic modifications of the atmosphere's trace gases and their heat content occurred because of world population growth, agriculture, industrial economy, deforestation, land use change, mobility, and urbanisation. CO2 concentration increased from ca.
openaire   +1 more source

Lateral flow in the exosphere

Planetary and Space Science, 1967
Hydrogen and helium lateral flow in collisionless exosphere calculated on model for various sinusoidal temperature and concentration variations over exobase ...
openaire   +1 more source

Titan's atomic hydrogen exosphere

2010
Not ...
Hedelt, P., Ito, Y., Keller, H. U., Reulke, R., Wurz, P., Lammer, H., Rauer, H., Esposito, L.   +7 more
openaire   +1 more source

Asymmetries in Mars’ Exosphere

2007
Observations and simulations show that Mars’ atmosphere has large seasonal variations. Total atmospheric density can have an order of magnitude latitudinal variation at exobase heights. By numerical simulations we show that these latitude variations in exobase parameters induce asymmetries in the hydrogen exosphere that propagate to large distances ...
openaire   +1 more source

Mercury exosphere

Icarus, 2011
Francois Leblanc, Alain Doressoundiram
openaire   +1 more source

The Moon's time-variable exosphere

Science, 2016
Lunar Atmosphere Earth's Moon does not have a conventional gaseous atmosphere, but instead an “exosphere” of particles ejected from the surface. Colaprete et al. have used NASA's LADEE orbiter to investigate how the exosphere varies over time, by using the glow from sodium and potassium atoms as a probe (see the Perspective by Dukes and Hurley).
openaire   +1 more source

EXOSPHERE

A-to-Z Guide to Thermodynamics, Heat and Mass Transfer, and Fluids Engineering, 2006
openaire   +2 more sources