HR: 1330h
AN: SM12A-1204 [PDF]
TI: Measurements of Polar Cap Absorption (PCA) Events at Very High Geomagnetic Latitudes in the Antarctic
AU: Lanzerotti, L J
EM: ljl@lucent.com
AF: Bell Laboratories, Lucent Technologies, 600 Mountain Avenue, Murray Hill, NJ 07974
AU: Lanzerotti, L J
EM: ljl@lucent.com
AF: Center for Solar-Terrestrial Research, New Jersey Institute of Technology, Newark, NJ 07102
AU: Detrick, D
EM: detrick@uarc.umd.edu
AF: Institute for Physical Science and Technology, University of Maryland, College Park, MD 20742-2431
AU: Gorin, C
AF: Bell Laboratories, Lucent Technologies, 600 Mountain Avenue, Murray Hill, NJ 07974
AU: * Maclennan, C G
EM: cgm@lucent.com
AF: Bell Laboratories, Lucent Technologies, 600 Mountain Avenue, Murray Hill, NJ 07974
AU: Rosenberg, T J
AF: Institute for Physical Science and Technology, University of Maryland, College Park, MD 20742-2431
AU: Weatherwax, A T
EM: aweatherwax@siena.edu
AF: Department of Physics, Siena College, Loudonville, NY 12211-1462
AB:
The availability of imaging riometer data from the Automatic Geophysical Observatories (AGOs) P5 and P6, located a few
degrees on either side of the southern geomagnetic dipole provides an unprecedented opportunity to study polar cap absorption
(PCA) events at the highest latitudes to date. Of equal importance is the opportunity provided by these imaging
instruments, together with similar instruments at other AGO sites and South Pole, for investigations of the spatial structure
with time of the absorption events. The imaging riometer data are used together with interplanetary charged particle
measurements from the EPAM instrument on the ACE spacecraft to provide new understanding into the effects of solar particle
events on the very high latitude ionosphere. Results from studies of three events in 2000 (February 18, November 8, November
24) will be discussed in some detail.
DE: 2118 Energetic particles, solar
DE: 2475 Polar cap ionosphere
DE: 2724 Magnetopause, cusp, and boundary layers
DE: 2776 Polar cap phenomena
SC: SPA - Magnetospheric Physics [SM]
MN: 2003 Fall Meeting