NSF Org:	OPP Office of Polar Programs
Recipient:	THE REGENTS OF THE UNIVERSITY OF COLORADO
Initial Amendment Date:	April 18, 1994
Latest Amendment Date:	May 10, 1995
Award Number:	9320938
Award Instrument:	Continuing Grant
Program Manager:	Bernhard Lettau OPP  Office of Polar Programs O/D  Office Of The Director
Start Date:	April 15, 1994
End Date:	September 30, 1996 (Estimated)
Total Intended Award Amount:	$350,000.00
Total Awarded Amount to Date:	$350,000.00
Funds Obligated to Date:	FY 1994 = $270,000.00 FY 1995 = $80,000.00
History of Investigator:	Judith Curry (Principal Investigator) curryja@eas.gatech.edu Jeffrey Key (Co-Principal Investigator) James Maslanik (Co-Principal Investigator) Jeffrey Tilley (Co-Principal Investigator) Guosheng Liu (Co-Principal Investigator)
Recipient Sponsored Research Office:	University of Colorado at Boulder 3100 MARINE ST Boulder CO  US  80309-0001 (303)492-6221
Sponsor Congressional District:	02
Primary Place of Performance:	University of Colorado at Boulder 3100 MARINE ST Boulder CO  US  80309-0001
Primary Place of Performance Congressional District:	02
Unique Entity Identifier (UEI):	SPVKK1RC2MZ3
Parent UEI:
NSF Program(s):	ARCSS-Arctic System Science, ANS-Arctic Natural Sciences
Primary Program Source:	0100CYXXDB NSF RESEARCH & RELATED ACTIVIT
Program Reference Code(s):	0000, 5219, GLCH, OTHR
Program Element Code(s):	521900, 528000
Award Agency Code:	4900
Fund Agency Code:	4900
Assistance Listing Number(s):

ABSTRACT

9320938 Curry This project is an integrated experimental and modeling effort to understand and interpret the evolution of sea ice characteristics, cloud properties, and radiation fluxes during the autumnal freezing of the coastal waters of the Beaufort Sea. It will carried out in the scientific context of the Beaufort and Arctic Seas Experiment (BASE), a Canadian program whose objective is an improved understanding of weather systems in the Canadian Arctic, and whose focus is the hydrologic balance of the Mackenzie River. This project will make use of the NCAR C-130 aircraft, and BASE will provide substantial synergistic observational facilities. The direct aircraft observations will be supplemented by satellite data to extend the time and space scales of the analyses, and will be used to interpret and validate satellite retrieval algorithms. A three-dimensional mesoscale model of the atmosphere will be used to interpret the temporal and spatial evolution of the sea ice cover and the atmospheric boundary layer characteristics. A coupled sea ice model will be used to interpret the physical processes of the sea ice that respond to atmospheric forcing. The result of the research will be an improved understanding of the atmospheric modulation of the surface radiation balance and the effect of the radiation balance on the freezing of coastal waters. ***

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