Little Diomede Island, Bering Strait

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BERING STRAITTHROUGHFLOW
Little Diomede Island, Bering Strait
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Comparison of Water Properties and Flows in the
U.S. and Russian Channels of the Bering Strait -
2005 to 2006
STATUS AND PROGRESS
Moorings 1990 - present
1 year of moorings (A2, A3, A4) 2005-2006 3
years of concurrent US-Russian data (1990-1991,
2004-2005, 2005-2006)
Hypothesis A3 is a useful proxy of total flow
MODIS SST 26th Aug 04, courtesy NASA
Velocity v good, just needs calibration Tempera
ture fair, need to get mechanisms Salinity
poor, need to get mechanisms
Transport v good (rgt0.97), just needs
calibration Freshwater ditto, (rgt0.94), but
needs calibration Heat better than just T
(rgt0.93), but needs calibration
Woodgate, Aagaard, Weingartner, 2007, FIRST STEPS
IN CALIBRATING THE BERING STRAIT THROUGHFLOW
Preliminary study of how measurements at a
proposed climate site (A3) compare to
measurements within the two channels of the
strait (A1 and A2), UW Technical Report, 20pp,
/psc.apl.washington.edu/BeringStrait.html
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The Pacific Gateway to the Arctic- Quantifying
and Understanding Bering Strait Oceanic Fluxes
STATUS AND PROGRESS
AIMS 1) UNDERSTAND DYNAMICS 2) QUANTIFY FLUXES
heat, freshwater, nutrients,chlorophyll (WITH
Alaskan Coastal Current and stratification) 3)
DESIGN MONITORING NETWORK (including remote data
sources)
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The Pacific Gateway to the Arctic
COORDINATION AND INTEGRATION
http//psc.apl.washington.edu/BeringStrait.html
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The Pacific Gateway to the Arctic
COORDINATION AND INTEGRATION
http//psc.apl.washington.edu/BeringStrait.html
WITHOUT ACC/Stratification
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The Pacific Gateway to the Arctic
COORDINATION AND INTEGRATION
http//psc.apl.washington.edu/BeringStrait.html
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The Pacific Gateway to the Arctic
COORDINATION AND INTEGRATION
http//psc.apl.washington.edu/BeringStrait.html
WITHOUT ACC/Stratification
COMBINE WITH - SST - SSH - model results
INPUT FOR - model forcing and validation - local
observational work - theory studies
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The Pacific Gateway to the Arctic
FUTURE DIRECTIONS AND 2008 PLANS
FIELD WORK Bering Strait mooring cruise - Leg 2
of RUSALCA 2008 Russian Vessel Lavrentiev Nome
to Nome August 15 25th 2008 - mooring
recoveries and redeployments - high resolution
CTD sections
1) Understanding Physics 2) Quantifying
Fluxes 3) Designing monitoring system
http//psc.apl.washington.edu/BeringStrait.html