Arctic Field Projects



Project Title: Collaborative Research: Sea Ice Deformation Observation with an AON (Award# 1023662)

PI: Hutchings, Jennifer K (jhutchings@coas.oregonstate.edu)
Phone: (541) 737.4453  
Institute/Department: Oregon State University, College of Earth, Ocean and Atmospheric Sciences 
IPY Project?
Funding Agency: US\Federal\NSF\GEO\OPP\ARC\AON
Program Manager: Dr. William Wiseman (wwiseman@nsf.gov)
Discipline(s): | Oceanography |

Project Web Site(s):
Data: http://nsidc.org/
Project: http://www.iarc.uaf.edu/expeditions/?cat=9
NSF_Award_Info: http://www.nsf.gov/awardsearch/showAward.do?AwardN...

Science Summary:
This grant supports initial work to demonstrate the feasibility of converting the International Arctic Buoy Program (IABP) buoy network to GPS. The PIs argue that current coverage of GPS-enabled buoys is insufficient to monitor the Arctic-wide sea-ice deformation. ARGOS positioning is currently used on most buoys and is unable to resolve ice drift response to inertial wave, tidal forcing and short-term weather events. Velocity and strain-rate errors consequent to the use of ARGOS positioning result in misrepresentation of ice deformation’s impact on the ice thickness distribution. The PIs argue that there is a very simple fix to this problem: deploy GPS- equipped buoys. The PIs anticipate that the improved IABP network will provide pan-Arctic monitoring of regional ice deformation variability on sub-daily to seasonal time scales. Sea ice deformation products will be developed for public dissemination, enabling regional estimates of ice thickness distribution to be improved and open water fraction monitored, essentially assisting in the monitoring of ocean-atmosphere fluxes in the Arctic. They expect buoy deployments to complement Automated Drifting Stations (ADSs). At these stations localized measurements of multi-year ice mass balance, ocean fluxes, ocean profiles and meteorology are made. Understanding surface fluxes and ice mass balance in the ADS vicinity requires an understanding of the evolution of the local ice thickness distribution. Arguing that it currently is unknown what area of local ice pack affects the energy budget measured at the ADS, the researchers plan to deploy local GPS deformation arrays around ADSs with a view to determining the spatial scale necessary to monitor in order to provide a full picture of how both ice dynamics and thermodynamics impact the energy budget at the ocean-ice-atmosphere interface in the vicinity of the ADS.

Logistics Summary:
PIs on this collaboration--1023662 (Hutchings, UAF, LEAD) and 1022710 (Rigor, UW)--will deploy GPS-equipped buoys in the Arctic and provide sea-ice deformation measurements as part of AON. In 2011 and 2012, and possibly in 2013, the PIs will deploy buoys via other research programs and platforms, including the North Pole Environmental Observatory (NPEO) logistics chain and researchers deploying with NPEO to position sea-ice buoys in the region. Work begun under this grant is continued under NSF grant 1412805. This project’s NPEO logistics will be carried under the record for Morison, 0856330.

For the NPEO deployments, CPS will provide access to support and services provided to NPEO-affiliated research. The PI will arrange/pay for all other logistics costs via the grant.
SeasonField SiteDate InDate Out#People
2011Arctic Ocean and Seas - Beaufort Sea0
2011Arctic Ocean and Seas - North Pole0
2012Arctic Ocean and Seas - Beaufort Sea09 / 17 / 2012 10 / 18 / 20122
2012Arctic Ocean and Seas - North Pole0
2013Arctic Ocean and Seas - Beaufort Sea0
2013Arctic Ocean and Seas - North Pole0
 


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