Award Abstract #0631951
IPY: Towards an Arctic Observing Network: An array of Ice-Tethered Profilers to sample the upper ocean water properties during the International Polar Year

NSF Org:	ARC Arctic Sciences Division
Initial Amendment Date:	January 24, 2007
Latest Amendment Date:	November 25, 2008
Award Number:	0631951
Award Instrument:	Continuing grant
Program Manager:	Martin Jeffries ARC Arctic Sciences Division OPP Office of Polar Programs
Start Date:	February 1, 2007
Expires:	January 31, 2011 (Estimated)
Awarded Amount to Date:	$1735332
Investigator(s):	John Toole jtoole@whoi.edu (Principal Investigator) Carin Ashjian (Co-Principal Investigator) Andrey Proshutinsky (Co-Principal Investigator) Richard Krishfield (Co-Principal Investigator)
Sponsor:	Woods Hole Oceanographic Institution 183 OYSTER POND ROAD WOODS HOLE, MA 02543 508/289-2462
NSF Program(s):	AON IMPLEMENTATION
Field Application(s):	0311000 Polar Programs-Related
Program Reference Code(s):	OTHR, 5295, 1079, 0000
Program Element Code(s):	5293

ABSTRACT

Toole - 0631951

Funds are provided to initiate massive sampling of the Arctic Ocean water properties during all seasons. In order to detect and monitor change, this project document the Arctic Ocean variability using a series of expendable instruments that will provide real time information about sea ice drift and the properties of the Arctic water column. This will be accomplished by expanding ongoing efforts to develop, test and field a set of WHOI Ice-Tethered Profilers (ITPs): autonomous instruments that return high-vertical-resolution measurements of upper (~800 m) ocean temperature and salinity beneath sea ice during all seasons at better than daily temporal resolution over a projected three-year lifetime. Support is provided to build and deploy 4 ITP systems in 2007 and an additional 4 in 2008, and to acquire and make publicly available the data from those instruments through 2009.

PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH

Johnson, G.C., J.M. Toole and N.G. Larson. "Sensor corrections for Sea-Bird SBE-41CP and SBE-41 CTDs," Journal of Atmospheric Oceanic Tech., v.24, 2007, p. 1117.

Krishfield, R., J. Toole, A. Proshutinsky, M.-L. Timmermans. "Automated Ice-Tethered Profilers for Seawater Observations Under Pack Ice in All Seasons.," Journal of Atmospheric and Oceanic Tech., v.47, 2008, p. 2091.

Timmermans, M.-L., J. Toole, A. Proshutinsky, R. Krishfield, and A. Plueddemann. "Eddies in the Canada Basin, Arctic Ocean, observed from ice-tethered profilers.," Journal of Physical Oceanography, v.38, 2008, p. 133.

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