NSF Org:	AGS Division of Atmospheric and Geospace Sciences
Recipient:	THE UNIVERSITY OF IOWA
Initial Amendment Date:	July 31, 1995
Latest Amendment Date:	May 22, 1996
Award Number:	9507985
Award Instrument:	Continuing Grant
Program Manager:	Sunanda Basu AGS  Division of Atmospheric and Geospace Sciences GEO  Directorate for Geosciences
Start Date:	July 15, 1995
End Date:	June 30, 1997 (Estimated)
Total Intended Award Amount:	$80,000.00
Total Awarded Amount to Date:	$145,000.00
Funds Obligated to Date:	FY 1995 = $56,100.00 FY 1996 = $0.00
History of Investigator:	Helen Na (Principal Investigator) hna@icaen.uiowa.edu
Recipient Sponsored Research Office:	University of Iowa 105 JESSUP HALL IOWA CITY IA  US  52242-1316 (319)335-2123
Sponsor Congressional District:	01
Primary Place of Performance:	University of Iowa 105 JESSUP HALL IOWA CITY IA  US  52242-1316
Primary Place of Performance Congressional District:	01
Unique Entity Identifier (UEI):	Z1H9VJS8NG16
Parent UEI:
NSF Program(s):	AERONOMY
Primary Program Source:	app-0195  app-0196
Program Reference Code(s):	0000, 1045, OTHR
Program Element Code(s):	152100
Award Agency Code:	4900
Fund Agency Code:	4900
Assistance Listing Number(s):	47.050

ABSTRACT

The PI proposes a two-phase research program on high resolution computerized ionospheric tomography (CIT) algorithm development. Phase I will characterize (theoretically and experimentally) the resolving capabilities and sensitivities of all major CIT algorithms with respect to specific reconstruction goals. Phase II will develop high resolution CIT algorithms through (1) linkage of traditional ground-based TEC with ionospheric data of opportunity to provide CIT algorithms with maximum information of the true ionospheric distribution, and (2) incorporation of mathematical equations describing ionospheric processes into CIT algorithms.***

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