Interhemispheric Comparisons of Global-Scale Ionospheric Convection

Details Interhemispheric Comparisons of Global-Scale Ionospheric Convection Interhemispheric Comparisons of Global-Scale Ionospheric Convection

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsm31a1514s&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #SM31A-1514

Physics

[2411] Ionosphere / Electric Fields, [2463] Ionosphere / Plasma Convection, [2760] Magnetospheric Physics / Plasma Convection

Scientific paper

The Super Dual Auroral Radar Network (SuperDARN) is perhaps the only facility capable of measuring convection electric fields simultaneously over large regions of the ionosphere in both hemispheres. Using a dataset of periods for which data is sufficient to describe the global-scale convection pattern in both hemispheres, maps of the convection electric field are compared under various interplanetary magnetic field (IMF) and dipole tilt conditions. Case studies and statistics show that the largest differences occur under IMF By dominant conditions with non-zero dipole tilt and are likely caused by differing merging geometries under these conditions.

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