Metadata from CMDAC Accession 1471

Experiment name:        ACM8 (German component)
Principal Investigator: J.Meincke/E.Mittelstaedt                        
PI's affiliation:       B.S.H.Hamburg           
Mooring Name:           A4
Mooring position:       59.152 deg N,   34.000 deg W
Instrument depth:       882 meters
Seafloor depth:         2850 meters
Times:                  starts 31 May 1994, ends 10 Jun 1995
Time increment:         60 minutes
Instrument type:        Aanderaa RCM7


  parameter         min     mean      max       sd     days

speed (cm/sec)      0.01     6.37    29.87     5.98    374.9
dir (deg true)      0.15   166.06   359.72   120.82    374.9
u (cm/sec)        -29.84    -0.63    26.33     6.56    374.9
v (cm/sec)        -19.40     1.10    21.60     5.63    374.9
temp (deg C)        3.01     3.41     4.02     0.17    374.9


There are some unusual and abrupt direction shifts in this record,
from about 330 degrees to about 90 degrees. This behavior occupies
only a small fraction of the total length of the file, but does
occur on several occasions throughout the record. The direction
series from some other instruments on the mooring behave similarly
at approximately the same times, which suggests that the sudden
veering is genuine. 

Approximately 23% of the speeds in this record were below the
current meter's threshold and have been set to 0.01 cm/sec. (The
speeds were set to a nonzero value so that direction information
would be preserved in u and v. For the most part, current records
in this component of ACM-8 contain u and v but not speed or direction.
Hence, in order to preserve direction without expicitly including
a time series of directions, BSH has elected to represent below-threshold
speeds as 0.01 cm/sec, encoded in u and v. This is true for
all the current records in the German portion of ACM-8.)
 

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