Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsm41b0812v&link_type=abstract
American Geophysical Union, Fall Meeting 2001, abstract #SM41B-0812
Physics
2724 Magnetopause, Cusp, And Boundary Layers, 2784 Solar Wind/Magnetosphere Interactions
Scientific paper
Interball measurements within LLBL indicate that most of LLBL crossings fall into two categories: (1) highly structured LLBL and (2) weakly structured LLBL. The highly structured LLBL is usually associated the interplanetary magnetic field (IMF) and/or magnetosheath magnetic field has a negative Bz component, while the weakly structured LLBL is usually observed while IMF and/or magnetosheath magnetic field has a positive Bz component. Two types of the LLBL differ not only in observed variations of number density distribution but also in temperature and velocity pattern. The ion velocity distributions within highly structured LLBL are quite variable and often consist of two or three magnetosheath-type components with different velocities parallel to the magnetic field. The ion velocity distributions within weakly structured LLBL consist of two components and show significantly smaller variations compared to the highly structured LLBL. These characteristics indicate that two types of LLBL have different sources.
Avanov Levon A.
Moore Thomas Earle
Smirnov Valery N.
Vaisberg Oleg L.
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