NSF Org:	OPP Office of Polar Programs (OPP)
Recipient:	UNIVERSITY OF WASHINGTON
Initial Amendment Date:	May 22, 2009
Latest Amendment Date:	May 22, 2009
Award Number:	0838769
Award Instrument:	Standard Grant
Program Manager:	Peter Milne OPP  Office of Polar Programs (OPP) GEO  Directorate for Geosciences
Start Date:	June 1, 2009
End Date:	September 30, 2013 (Estimated)
Total Intended Award Amount:	$343,332.00
Total Awarded Amount to Date:	$343,332.00
Funds Obligated to Date:	FY 2009 = $343,332.00
ARRA Amount:	$343,332.00
History of Investigator:	Jinlun Zhang (Principal Investigator) zhang@apl.washington.edu
Recipient Sponsored Research Office:	University of Washington 4333 BROOKLYN AVE NE SEATTLE WA  US  98195-1016 (206)543-4043
Sponsor Congressional District:	07
Primary Place of Performance:	University of Washington 4333 BROOKLYN AVE NE SEATTLE WA  US  98195-1016
Primary Place of Performance Congressional District:	07
Unique Entity Identifier (UEI):	HD1WMN6945W6
Parent UEI:
NSF Program(s):	ANT Ocean & Atmos Sciences
Primary Program Source:	01R00910DB RRA RECOVERY ACT
Program Reference Code(s):	0000, 6890, OTHR
Program Element Code(s):	511300
Award Agency Code:	4900
Fund Agency Code:	4900
Assistance Listing Number(s):	47.078

ABSTRACT

Abstract

Through modeling and data assimilation studies, University of Washington researchers seek to reconcile information on Antarctic sea ice and its interaction with the upper ocean and the atmosphere, throughout the modern era of satellite observation (1979 to present). Links to changes and variability in Antarctic climate postulated in terms of the patterns observed in the Southern Annular Mode, mechanisms of likely positive trends in Antarctic sea ice extent in an otherwise warming climate, and estimates of how the Antarctic ice-ocean system may respond to changing atmospheric circulation will be considered.

The model to be used in the study is the Global Ice-Ocean Modeling and Assimilation System (GIOMAS; http://psc.apl.washington.edu/zhang/Global_seaice), a coupled global ocean/ice/atmosphere model. Technical improvements to this model include an update of the GIOMAS model physics appropriate to the Antarctic ice-ocean system; use of NCEP/NCAR and ERA-40 reanalysis data to drive atmospheric forcing, and, through numerical experiments, estimates of parameters such Antarctic sea ice thickness, open water, snow depth, surface temperatures etc of interest to the climate and ecosystem research communities will be made.

"This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5)."

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