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National Science Foundation Award #0516606

NSWP: Determining the Relationships between Promptly Penetrating, Daytime Low Latitude Electric Fields and Interplanetary Electric and Magnetic Field Conditions

 
Investigator(s): David Anderson (PI) ; Adela Anghel (Co-PI)
Sponsor: University of Colorado at Boulder, CO 80309 3034926221
Start Date/Expiration Date 2005-09-15 to 2006-08-31 (amended 2005-09-18)
Awarded Amount to Date: $58,910
Abstract: Vertical Plasma drifts driven by the relative orientation and strengths of the Earth's magnetic field and ionospheric electric fields (ExB), and the sensitivity of those drifts to the interplanetary magnetic field (IMF) are modeled semi-empirically. Multiple-regression and neural network analyses are applied to incoherent scatter radar (ISR) data from the Jicamarca, Peru radar site, to low power JULIA radar data from Jicamarca, to magnetometer data from Peru and from the sites in the Philippines, and to ACE satellite data to improve our understanding of penetrating electric fields. The Rice Convection Model is also used to provide theoretical insight into physical drivers that couple the IMF to vertical ion drifts through coupling to ionospheric electric fields. The research focuses on more accurate descriptions of the time dependant relationships between promptly penetrating electric fields in the daytime and the interplanetary electric and magnetic field conditions. Also, the longitudinal variation of IMF driven electric fields is determined.
NSF Org: ATM - Division of Atmospheric Sciences
Award Number: 0516606
Award Instrument: Continuing grant
Program Manager: Robert B. Kerr
ATM Division of Atmospheric Sciences
GEO Directorate for Geosciences
NSF Program(s):
Field Application(s): Space
Program Reference Code(s): NATURAL DISASTERS, 9196
Program Element Code(s): V896