ROSES ID: NNH05ZDA001N Selection Year: 2006
Program Element: Focused Science Topic
Principal Investigator: Anthony Mannucci
Affiliation(s): Jet Propulsion Laboratory
Project Member(s):
CROWLEY, GEOFFREY Co-I null
Tsurutani, Bruce T Co-I Jet Propulsion Laboratory, California Institute of Technology
Fuller-Rowell, Tim Collaborator University of Colorado
Summary:
The impact of electric fields on the large-scale variation of plasma in the Earth's ionosphere is receiving increasing attention from the research community because it is of fundamental importance in understanding the structure and dynamics of the Earth s ionosphere during geomagnetic storms. Recent publications suggest that prompt penetration electric fields generated by the solar wind-magnetosphere interaction may have enormous consequences in changing the global structure of total electron content (TEC) in the dayside ionosphere, rapidly (within ~2-3 hours) after certain conditions in the solar wind are met. In earlier work, Foster et al., (2002) used a dense network of ground-based ionospheric measurements to detect mesoscale structures over North America that may be correlated with plasmaspheric structures known as drainage plumes, the latter widely believed to be due to storm-time electrodynamics in the inner magnetosphere. Both the dayside TEC increases, and the mesoscale mid-latitude structures, suggest the strong role of convection electric fields in determining ionospheric behavior during geomagnetic storms, but many questions remain about the origin of these fields and their ionospheric impact.Performance Year | Reference | Investigation Type | Actions |
---|---|---|---|
1 | Mannucci, A. J.; Tsurutani, B. T.; Abdu, M. A.; Gon... | not set |
Performance Year | Reference | Actions |
---|---|---|
1 | Mannucci, A. J.; Tsurutani, B. T.; Crowley, G.; Verk... | |
1 | Mannucci, A. J.; Tsurutani, B. T.; (2007), Science and ... |