Physics
Scientific paper
Apr 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991angeo...9..267s&link_type=abstract
Annales Geophysicae (ISSN 0939-4176), vol. 9, April 1991, p. 267-272.
Physics
4
Atmospheric Heating, Midlatitude Atmosphere, Oxygen Ions, Ring Currents, Upper Atmosphere, Atmospheric Models, Extreme Ultraviolet Radiation, Magnetic Storms, Monte Carlo Method, Particle Trajectories
Scientific paper
The energy deposition by ring current oxygen ions precipitated along magnetic field lines into the upper atmosphere at midlatitudes is investigated. Oxygen ion flux measurements in the energy range 0.9-13.9 keV obtained in the ring current during a magnetic storm are used as input to a Monte Carlo simulation. Maximum heating rates of about 5 x 10 exp 3 eV/cu cms are derived. This heating occurs in the immediate neighborhood of the local magnetic field line and peaks at an altitude of about 235 km. The peak absorption height is lowered to 185 km if a monoenergetic flux of 100 keV oxygen ions is used as input to the calculation. It is concluded that, in general, precipitated ring current oxygen ions are not responsible for neutral gas composition changes at midlatitudes, since this would require heating at much lower altitudes.
Proelss G. W.
Schroeder S.
No associations
LandOfFree
Heating of the upper atmosphere by oxygen ions precipitated from the ring current does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Heating of the upper atmosphere by oxygen ions precipitated from the ring current, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heating of the upper atmosphere by oxygen ions precipitated from the ring current will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1789885