Dataset: 2002-2003 Beaufort Shelf Edge Mooring Array Data

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Dataset Authors
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Robert S. Pickart, Paula S. Fratantoni, Daniel J. Torres
Woods Hole Oceanographic Institution

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Contact Person
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Robert S. Pickart
MS #21 WHOI, Woods Hole, MA 02543
rpickart@whoi.edu
(ph) 508-289-2858, (fax) 508-457-2181

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Funded by
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ONR grant N00014-02-1-0317

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2002-03 MP deployment dates and positions
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Inst.     Start           Stop            Lat             Lon
bs2     08/02/02        09/25/03        71 21.13 N      152  5.88 W
bs3     08/01/02        09/25/03        71 23.69 N      152  2.88 W
bs4     08/01/02        09/25/03        71 26.29 N      152  0.72 W
bs5     07/31/02        09/11/03        71 29.06 N      151 58.50 W
bs6     07/31/02        09/11/03        71 31.91 N      151 55.86 W
bs7     07/30/02        09/24/03        71 34.07 N      151 54.84 W
bs8     07/29/02        09/14/03        71 39.97 N      151 50.10 W

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FILE CONTENTS
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Each matlab-formated file (bsXX_YY.mat) contains the full set of moored
profiler data for instrument XX during deployment year 20YY.  The CTD
data has been calibrated, de-spiked, and inspected for fouling events
and bad data pointes have been replaced with NaN values (a detailed
data report will be made available in the near future). The files
contain a single structure function with the following variables (each
row in an array corresponds with a single profile completed by the
moored profiler):

MP.time		day and time of values averaged in each pgrid bin (see below)
MP.pgrid	center values of the pressure grid used in the bin-average (db)
MP.pave		average of the pressure values in each pgrid bin (db)
MP.cave		bin-averaged conductivity (mmho)
MP.s_ave	bin-averaged salinity (psu) computed from pave, tave, and cave
MP.tave		bin-averaged temperature (degrees C)

The two moorings deployed furthest offshore, bs7 and bs8, included
acoustic current meters.  These files contain the following additional
variables:

MP.uave		bin-averaged east velocity in each pgrid bin (cm/s)
MP.vave		bin-averaged north velocity in each pgrid bin (cm/s)
MP.wave		bin-averaged relative vertical velocity in each pgrid bin (cm/s)

The bin-averaging of the MP data looks for all scans within each
pressure interval of the nodes in pgrid.  The midpoint of each bin
makes up the pgrid values.  The mean of all the pressures
(temperatures, salinities, and conductivities) from MP scans falling
within each bin form the pave (tave, s_ave, and cave) vector.  The time
vectors represent serial time from January 1, 0000 (encoded date using
the matlab function DATENUM).

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References
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Fratantoni, P. S., R. S. Pickart, S. Zimmerman, and M. Schwartz, 2006.
Western Arctic Shelf-Basin Interactions Experiment: Processing of
moored profiler data from the Beaufort Shelf Edge mooring array. WHOI
Technical Report, in preparation.