Award Abstract # 0436494
CEDAR: Storm Time Behavior of Electric Fields in the Plasmasphere

NSF Org: AGS
Division of Atmospheric and Geospace Sciences
Recipient: UNIVERSITY OF TEXAS AT DALLAS
Initial Amendment Date: November 15, 2004
Latest Amendment Date: October 30, 2006
Award Number: 0436494
Award Instrument: Continuing Grant
Program Manager: Cassandra G. Fesen
AGS
 Division of Atmospheric and Geospace Sciences
GEO
 Directorate for Geosciences
Start Date: December 1, 2004
End Date: November 30, 2007 (Estimated)
Total Intended Award Amount: $242,667.00
Total Awarded Amount to Date: $242,667.00
Funds Obligated to Date: FY 2005 = $78,510.00
FY 2006 = $80,866.00

FY 2007 = $83,291.00
History of Investigator:
  • Roderick Heelis (Principal Investigator)
    heelis@utdallas.edu
Recipient Sponsored Research Office: University of Texas at Dallas
800 WEST CAMPBELL RD.
RICHARDSON
TX  US  75080-3021
(972)883-2313
Sponsor Congressional District: 24
Primary Place of Performance: University of Texas at Dallas
800 WEST CAMPBELL RD.
RICHARDSON
TX  US  75080-3021
Primary Place of Performance
Congressional District:
24
Unique Entity Identifier (UEI): EJCVPNN1WFS5
Parent UEI:
NSF Program(s): AERONOMY
Primary Program Source: app-0105 
app-0106 

app-0107 
Program Reference Code(s): 1323, EGCH
Program Element Code(s): 152100
Award Agency Code: 4900
Fund Agency Code: 4900
Assistance Listing Number(s): 47.050

ABSTRACT

Electric fields produced by the thermospheric neutral wind dynamo and originating in the magnetosphere generate ion drifts that are sampled by polar orbiting Defense Meteorological Satellite Project (DMSP) satellites F15 and F13. These data, from the years 2001 and 2002 are assembled and analyzed at four distinct local times and used to determine the morphology of zonal ion drift as functions of latitude and magnetic activity. The research product is improved understanding of a variety of ion-transport phenomena, including traveling ionospheric disturbances (TIDs), storm-time enhancements of ion densities. In addition, the coupling of the magnetosphere to the ionosphere is intrinsically investigated by establishing the low latitude limit to the auroral electric field as well as its response to magnetic activity. The data mining, archiving, and correlative analysis is tasked to a female aeronomy graduate student.

PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH

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C. H. Lin, A. D. Richmond, R. A. Heelis, G. J. Bailey, G. Lu, J. Y. Liu, H. C. Yeh, and S.-Y. Su "Theoretical study of the low and middle latitude ionospheric electron density enhancement during the October, 2003 superstorm: Relative importance of the neutral wind and the electric field." J. Geophys. Res , v.110 , 2005 , p.A12312
Heelis, RA; Coley, WR "Variations in the low- and middle-latitude topside ion concentration observed by DMSP during superstorm events" JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS , v.112 , 2007 View record at Web of Science 10.1029/2007ja01232

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