Ionospheric response to the initial phase of geomagnetic storms: Dependence on storm onset time

Details Ionospheric response to the initial phase of geomagnetic storms: Dependence on storm onset time Ionospheric response to the initial phase of geomagnetic storms: Dependence on storm onset time

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsa13b..03w&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #SA13B-03

Physics

[2431] Ionosphere / Ionosphere/Magnetosphere Interactions, [2435] Ionosphere / Ionospheric Disturbances, [2441] Ionosphere / Ionospheric Storms, [2712] Magnetospheric Physics / Electric Fields

Scientific paper

The effect of storm onset time on the ionospheric response to the initial phase of the storms has been studied using both ground-based GPS TEC data and Coupled Magnetosphere Ionosphere Thermosphere (CMIT) model simulations. The CMIT model captured most of the observed ionospheric responses including the daytime positive response in low and middle latitudes and the negative response along the geomagnetic equator. These ionospheric responses are the results of penetration electric fields. Three CMIT simulations are carried out with the same solar wind/IMF conditions but the storm onset times are separated by 6 hours. For all three model simulations the ionospheric responses are similar. However, there are significant differences in the magnitude and morphology of these responses for different storm onset times. Further analysis shows that the pre-storm background ionospheric conditions and the magnetic field configuration are the two most important factors that cause differences in penetration electric fields when the storm onset times are different and thus differences in ionospheric responses.

Affiliated with

Also associated with

No associations

Rating

Ionospheric response to the initial phase of geomagnetic storms: Dependence on storm onset time 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 Ionospheric response to the initial phase of geomagnetic storms: Dependence on storm onset time, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ionospheric response to the initial phase of geomagnetic storms: Dependence on storm onset time will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1777850