NSF Org:	AGS Division of Atmospheric and Geospace Sciences
Recipient:	COMPUTATIONAL PHYSICS, INC.
Initial Amendment Date:	February 1, 2006
Latest Amendment Date:	February 1, 2006
Award Number:	0535402
Award Instrument:	Standard Grant
Program Manager:	Cassandra G. Fesen AGS  Division of Atmospheric and Geospace Sciences GEO  Directorate for Geosciences
Start Date:	March 1, 2006
End Date:	February 28, 2007 (Estimated)
Total Intended Award Amount:	$50,000.00
Total Awarded Amount to Date:	$50,000.00
Funds Obligated to Date:	FY 2006 = $50,000.00
History of Investigator:	Jerry Lumpe (Principal Investigator) lumpe@cpi.com Cora Randall (Co-Principal Investigator)
Recipient Sponsored Research Office:	Computational Physics Inc 8001 BRADDOCK RD SPRINGFIELD VA  US  22151-2115 (703)764-7501
Sponsor Congressional District:	11
Primary Place of Performance:	Computational Physics Inc 8001 BRADDOCK RD SPRINGFIELD VA  US  22151-2115
Primary Place of Performance Congressional District:	11
Unique Entity Identifier (UEI):	URK6XKBVSMU8
Parent UEI:
NSF Program(s):	AERONOMY
Primary Program Source:	app-0106
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

The altitude profile of O2 number density between 120-250 km, and the altitude profile of O3 number density between 50-100 km, are provided by the method of stellar occultation. Solar UV irradiance in the O2 Schumann Runge continuum and in the O3 Harley bands is monitored using the Solar Stellar Irradiance Comparison Experiment (SOLSTICE) aboard the Solar Radiation and Climate (SORCE) satellite, as a non-varying star passes through the earth's limb as seen from orbit. Resulting data are subject to a rigorous error analysis, and compared to The Whole Atmosphere Community Climate Model (WACCM) and to the Mass Spectrometer and Incoherent Scatter (MSIS) models for validation purposes. Derived O2 and O3 profiles may also be used for quantification of analytic photochemical and dynamic models of the middle atmosphere.

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