Metadata from Accession 675

Experiment name:        CONSLEX
Principal Investigator: not available
PI's affiliation:       Scottish Mar Bio Assn
Mooring Name:           not available
Mooring position:       57.293 deg N,   10.337 deg W
Instrument depth:       1035 meters
Seafloor depth:         2201 meters
Times:                  starts 28 Apr 1982, ends 25 Nov 1982
Time increment:         30 minutes
Instrument type:        Aanderaa

  parameter         min     mean      max       sd     days

speed (cm/sec)      0.00    10.54    36.90     5.05    211.1
dir (deg true)      0.00   176.44   359.05   112.12    211.1
u (cm/sec)        -27.27     0.60    36.09     8.39    211.1
v (cm/sec)        -24.16     1.79    30.71     7.91    211.1
temp (deg C)        5.30     6.71     8.03     0.56    211.1
pressure (db)    1039.90  1048.35  1169.40    11.68    211.1

BODC has provided the following cautionary note: The pressure
measurements are only suitable for relative depth confirmation
and for evaluation of the motion of the mooring system. The
pressure record shows that the rig suffered knockdown on occasions
throughout the deployment; the most severe displacement of
this meter was of the order of 130m and occured on 25 May
82. However, CMDAC notes that the minimum pressure recorded,
1039.9 db, translates to a depth of about 1030 m, which is
close to the depth given for the meter (1035 m). The mean
pressure, 1048.42 db, is equivalent to a depth of approximately
1038 m. Thus CMDAC thinks that the pressures recorded by
this meter may be reasonably accurate. 

The first 8 days of the temperature series originally contained
numerous spikes that probably were instrument errors. These
have been smoothed by linear interpolation in the present
version of the record. 

This record was made with an Aanderaa current meter. The
nominal speed threshhold of this meter is 1.5 cm/sec, and
a common practice is to set below-threshhold speeds either
to the threshhold value or to half the threshhold. In this
case, however, below-threshhold speeds were set to zero by
the originating PI, as were concurrent directions. In processing
historical data CMDAC normally resets below-threshhold Aanderaa
speeds to half the threshhold, but has not done so in this
case because the direction information has been lost. 

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