Physics
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsm22a0807k&link_type=abstract
American Geophysical Union, Fall Meeting 2001, abstract #SM22A-0807
Physics
2724 Magnetopause, Cusp, And Boundary Layers
Scientific paper
Recent observations have been made at low- and mid-altitudes of highly localized "true cusp" crossings made by the current DMSP F-series spacecraft and Cluster-II. These signatures are remarkably similar to the low-altitude measurements of DE-2, Astrid-2, UARS, and DMSP F-10 reported previously in Keith et. al. (2001). These new observations support the idea of a unique "true" or magnetic cusp that is a mapping of the magnetopause current layer to low altitudes. This is consistent with a narrow, wedge-shaped cusp that follows from antiparallel merging (Crooker, 1988). Mid- and exterior cusp data from the set of Cluster-II spacecraft show that this feature remains coherent out to several Re, greatly expanding the region available for the study of these signatures. Keith, W. R., J. D. Winningham and O. Norberg, A New, Unique Signature of the True Cusp, Ann. Geophys., V. 19, 611, June, 2001. Crooker, N. U., Mapping the Merging Potential From the Magnetopause to the Ionosphere Through the Dayside Cusp, J. Geophys. Res., V. 93, 7,338, 1988. >http://cluster.space.swri.edu/~waynek/agu.html
David Winningham J.
Keith W. R.
Parks George K.
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