Interplanetary-Ionospheric Coupling: The 6 November 2001 Magnetic Storm Event

Details Interplanetary-Ionospheric Coupling: The 6 November 2001 Magnetic Storm Event Interplanetary-Ionospheric Coupling: The 6 November 2001 Magnetic Storm Event

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufmsm42d..04t&link_type=abstract

American Geophysical Union, Fall Meeting 2003, abstract #SM42D-04

Physics

2139 Interplanetary Shocks, 2411 Electric Fields (2712), 2415 Equatorial Ionosphere, 2435 Ionospheric Disturbances, 2443 Midlatitude Ionosphere

Scientific paper

The effects of the intense southward interplanetary magnetic fields of the 6 November 2001 event is studied using ground-based GPS receiver data, satellite (vertical) GPS receiver data, satellite altimeter data and Brazilian near-equatorial ionosonde data. Strong dawn-to-dusk directed interplanetary electric fields are generated by shock compression of an upstream slow magnetic cloud southward Bz magnetic fields. The electric field reached an unusually high approx. 55 mV/m intensity. Immediately after shock impingement, there were strong dayside and nightside ionospheric effects. The CHAMP GPS data plus ground based GPS data indicate that the dayside ionosphere was lifted to altitudes above the satellite (approx. 430 km). The vertical ionospheric TEC increased by 50-100 %. Nightside ionosonde data indicate strong decreases in TEC. During the intense interplanetary electric field event, an unusual plasma feature is noted. Enhanced midlatitutde densities occur with a sharp drop-off of densities at higher latitudes. The latitude of the drop-off decreased with storm development, similar to plasmaspheric erosion during magnetospheric convection electric field events. Finally large decreases in the dayside TEC are noted approx. 6 hrs after shock passage. This decrease is approx. 40 % below quiet daytime values. These interesting ionospheric features will be discussed in terms of prompt penetration of interplanetary electric fields, shielding fields, and neutral winds and composition.

Affiliated with

Also associated with

No associations

Rating

Interplanetary-Ionospheric Coupling: The 6 November 2001 Magnetic Storm Event does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Interplanetary-Ionospheric Coupling: The 6 November 2001 Magnetic Storm Event, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interplanetary-Ionospheric Coupling: The 6 November 2001 Magnetic Storm Event will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1650118