Computer Science – Sound
Scientific paper
May 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986jgr....91.5711k&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 91, May 1, 1986, p. 5711-5718. Research supported by the Oesterreichische
Computer Science
Sound
12
Electron Precipitation, Energetic Particles, Magnetospheric Instability, Particle Interactions, Wave Interaction, Anisotropic Media, Balloon Sounding, Geos 2 Satellite, Polar Substorms, Very Low Frequencies, X Ray Analysis
Scientific paper
Energetic electron precipitation was observed via X ray measurements from three simultaneously flown balloons in a region conjugate to the location of the geosynchronous satellite GEOS 2. Data from the particle, wave, and field experiments on this satellite were used to investigate the relationship between magnetospheric processes in the equatorial plane and the electron precipitation. A large part of the electron precipitation during a substorm on July 3, 1979, was accompanied by VLF waves at whistler frequencies and had a temporal structure grossly similar to the intensity variations of the equatorial electron fluxes. Some precipitation also occurred in the absence of VLF waves. During the wave associated precipitation the equatorial electrons were anisotropically distributed with maximum fluxes perpendicular to the geomagnetic field. The anisotropy was larger than the critical anisotropy and thus enabled wave growth. The growth rate itself was determined numerically from the observations and turned out to have a frequency dependence similar to that of the observed waves. The interaction of the electrons with the waves led to strong pitch angle diffusion. The temporal variations of the electron flux in the loss cone were similar to those of the electron precipitation observed with a balloon near the conjugate point to GEOS 2. It is concluded that most of the electron precipitation during this substorm was caused by wave particle interaction.
Baumjohann Wolfgang
Korth Alex
Kremser Gerhard
Stadsnes Johan
Ullaland Stein
No associations
LandOfFree
Energetic electron precipitation during a magnetospheric substorm and its relationship to wave particle interaction 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 Energetic electron precipitation during a magnetospheric substorm and its relationship to wave particle interaction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Energetic electron precipitation during a magnetospheric substorm and its relationship to wave particle interaction will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1774615