Bering Strait Mooring Project 2005

CCGS Sir Wilfrid Laurier

Part of IOS cruise 2005-05      
8th July - 22nd July 2005     Kodiak - Barrow

Science Coordinator: Bon Van Hardenberg, Institute of Ocean Sciences, Sidney, BC, Canada
Lead for Canadian Science: Ed Carmack, IOS, Canada
Lead for US Science: Jackie Grebmeier, University of Tennessee
UW Bering Strait Mooring work: Rebecca Woodgate (UW)

Corresponding author: Rebecca Woodgate


NSF (ARC-0528632)

In 2005, the US Bering Strait mooring work was part of a joint Canadian-US expedition aboard the CCGS Sir Wilfrid Laurier.
Three moorings (carrying current meters, temperature and salinity sensors, a nutrient sampler, a transmissometer and a fluorometer) deployed in the Bering Strait region for 1 year, were recovered and redeployed.  Good weather also allowed completion of a CTD survey of the region, including four sections across the Alaskan Coastal Current.

For details, see:

- the Mooring Cruise report

- year-long moored records

- photos of instrument biofouling

- an outreach website by Teacher Betty Carvellas


Time-series from this cruise cover summer 2004 (left-hand-side of plots) to summer 2005 (right-hand-side of plots).

Cyan is at 40m depth at A4, in the Alaskan Coastal Current and suggests warming (and freshening)
of the Alaskan Coastal Current.

Blue is at ca. 47m depth at A2
Red is at ca. 47m depth at A3
These do not suggest warming.

These data, combined with velocity data, will indicate if the Bering Strait heat and freshwater fluxes are increasing in recent years.


For use of any of these figures, please contact
Rebecca Woodgate (

© Polar Science Center, University of Washington, 2005

Our thanks go to the captain and crew of the CCGS Sir Wilfrid Laurier for their hard work, skill, and professionalism during the cruise. 

We gratefully acknowledge financial support for this work from  Office of Naval Research (ONR) High Latitude Dynamics Program and the National Science Foundation (NSF) Office of Polar Programs.

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