ARCSS165 Mooring and Drifting Buoy Data: Beaufort Gyre Freshwater Experiment, 2003 Andrey Proshutinsky Mooring and Drifting Buoy Data: Beaufort Gyre Freshwater Experiment, 2003 2006-01-22 Boulder, Colorado USA NSIDC: National Snow and Ice Data Center http://nsidc.org/data/arcss165.html Investigator Andrey Proshutinsky

Woods Hole Oceanographic Institution

Mail Stop 29

Woods Hole MA 02543 USA Investigator Richard Krishfield rkrishfield@whoi.edu 1 508 289-2849

Woods Hole Oceanographic Institution

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Woods Hole Maryland 02543 USA Technical Contact NSIDC User Services nsidc@nsidc.org 1 303 492-6199 x 1 303 492-2468 x

National Snow and Ice Data Center

CIRES, 449 UCB

University of Colorado

Boulder CO 80309-0449 USA EARTH SCIENCE Cryosphere Sea Ice Ice Depth/Thickness EARTH SCIENCE Oceans Ocean Circulation Ocean Currents Velocity Profiles EARTH SCIENCE Oceans Ocean Pressure Water Pressure Bottom Pressure EARTH SCIENCE Oceans Ocean Temperature Sea Surface Temperature EARTH SCIENCE Oceans Ocean Temperature Water Temperature EARTH SCIENCE Oceans Salinity/Density Salinity EARTH SCIENCE Oceans Sea Ice Ice Depth/Thickness Ice Draft Climatology/Meteorology/Atmosphere Oceans ARCSS165 ARCSS Data Coordination Center Arctic Freshwater Initiative Arctic Ocean Beaufort Gyre Freshwater Experiment Beaufort Sea Conductivity Drifting Buoys Moored Buoy Moored Upward Looking Sonar Ocean Water Salinity Ocean Water Temperature OPP-0230184 Sea Ice Draft Sea Surface Temperatures Temperature Profiles Time Series Velocity Measurements Water Pressure ARGOS ARGOS Data Collection and Position Location System BOTTOM PRESSURE GAUGES CONDUCTIVITY METERS PROFILERS TEMPERATURE SENSORS UPWARD LOOKING SONAR BUOYS MOORINGS 2003-08-01 2004-08-31 complete 75 78 -150 -140 50 meters 3800 meters OCEAN ARCTIC OCEAN OCEAN ARCTIC OCEAN BEAUFORT SEA BEAUFORT GYRE 17:00:00 English ARCSS/ADCC NSIDC_ARCSS NSIDC Arctic System Science Data Coordination Center http://nsidc.org/arcss/ Data Center Contact NSIDC ARCSS User Services nsidc@nsidc.org 1 303 492-6199 1 303 492-2468

National Snow and Ice Data Center

CIRES, 449 UCB

University of Colorado

Boulder CO 80309-0449 USA Online (HTTP) FTP Kemp, J., K. Newhall, W. Ostrom, R. Krishfield, and A. Proshutinsky. 2005. The Beaufort Gyre Observing System 2004: Mooring Recovery and Deployment Operations in Pack Ice. WHOI Technical Report WHOI-2005-5. Ostrom, W., J. Kemp, R. Krishfield, and A. Proshutinsky. 2004. Beaufort Gyre Freshwater Experiment: Deployment Operations and Technology in 2003. WHOI Technical Report WHOI-2004-1. Proshutinsky, A., R. H. Bourke, and F. A. McLaughlin. 2002. The role of the Beaufort Gyre in Arctic climate variability: Seasonal to decadal climate scales. Geophysical Research Letters Vol. 29 No. 23. Proshutinsky, A., J. Yang, R. Krishfield, R. Gerdes, M. Karcher, F. Kauker, C. Koeberle, S. Hakkinen, W. Hibler, D. Holland, M. Maqueda, G. Holloway, E. Hunke, W. Maslowski, M. Steele, and J. Zhang. 2005. Arctic Ocean Study: Synthesis of Model Results and Observations. EOS 86(40), 368-371.

In the summer of 2003, investigators established an observational program to measure the freshwater content (in sea ice and in the ocean) of freshwater fluxes in the Beaufort Gyre using moorings and drifting buoys. They collected temperature time series, salinity, current, sea ice draft, and bottom pressure measurements. Investigators used conventional mooring systems containing a McLane Moored Profiler (MMP) to sample currents and hydrographic data from 50 m to 2050 m with 17-hour time intervals. They measured sea ice draft with an ASL Environmental Sciences 420 kHz upward-looking sonar (ULS). Using a high accuracy bottom pressure recorder (BPR), they measured sea level height variability and near-bottom seawater temperatures. Each mooring consisted of a surface floatation package at 50 m depth, which housed the ULS, a mooring cable containing the MMP, and dual acoustic releases and a BPR located immediately above the anchor. Investigators also deployed several ice-tethered beacons to provide concurrent temperature and salinity data at several discrete depths in the uppermost 40 m. The instruments suspended three SeaBird MicroCat C/T recorders and data were broadcast via the Argos data collection relay system, which also provided the drifter location.

VIEW PROJECT HOME PAGE http://www.whoi.edu/beaufortgyre/ Beaufort Gyre Expedition Project CEOS IDN DIF 9.7 2006-01-22 2012-09-13 Updated originating data center.