Physics
Scientific paper
May 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996jgr...10110737n&link_type=abstract
Journal of Geophysical Research, Volume 101, Issue A5, p. 10737-10748
Physics
113
Magnetospheric Physics: Auroral Phenomena, Magnetospheric Physics: Energetic Particles, Precipitating, Magnetospheric Physics: Magnetospheric Configuration And Dynamics, Magnetospheric Physics: Solar Wind/Magnetosphere Interactions
Scientific paper
Considerable information on the state of the magnetosphere is embedded in the structure of nightside charged particle precipitation. To reduce ambiguity and maximize the geophysically significant information extracted, a detailed scheme for quantitatively classifying nightside precipitation is introduced. The proposed system, which includes operational definitions and which has been automated, consists of boundary 1, the ``zero-energy'' convection boundary (often the plasmapause); boundary 2e, the point where the large-scale gradient dEe/dλ switches from positive to <=0 (the start of the main plasma sheet); boundary 2i, the ion high-energy precipitation cutoff (the ion isotropy boundary or the start of the tail current sheet); boundaries 3a,b, the most equatorward and poleward electron acceleration events (spectra with ``monoenergetic peaks'') above 0.25 erg/cm2s; boundary 4s, the transition of electron precipitation from unstructured on a >=10-km spatial scale (spectra have 0.6-0.95 correlation coefficients with neighbors) to structured (correlation coefficient usually 0.4 and below); boundary 5, the poleward edge of the main auroral oval, marked by a spatially sharp drop in energy fluxes by a factor of at least 4 to levels below those typical of the auroral oval; and boundary 6, the poleward edge of the subvisual drizzle often observed poleward of the auroral oval.
Feldstein Yasha I.
Galperin Yuri I.
Meng Ching I.
Newell Patrick T.
No associations
LandOfFree
Morphology of nightside precipitation 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 Morphology of nightside precipitation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Morphology of nightside precipitation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1418514