Physics
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsa21a..08l&link_type=abstract
American Geophysical Union, Fall Meeting 2001, abstract #SA21A-08
Physics
2411 Electric Fields (2712), 2437 Ionospheric Dynamics, 2439 Ionospheric Irregularities, 2443 Midlatitude Ionosphere, 2788 Storms And Substorms
Scientific paper
During space weather events ionospheric electric fields can become highly structured at Mid-latitudes due to destabilization of the polarization jet and the equator-ward expansion of auroral precipitation regions. This structure is reflected in the E-region of the ionosphere by the generation of irregularities over scales from centimeters to many kilometers. Using an empirical relationship we can now image E-region electric field structure from coherent scatter observation of these irregularities. We will discuss such observations made by the Millstone Hill radar during several recent geomagnetic storms. In particular we will focus on the distribution of electric field energy at different spatial scales, the detailed dynamics of E-region electric field structures, and the observed differences between storms of different size.
Erickson Phil J.
Foster Christopher J.
Lind Frank D.
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