Experiment name: SCM6 (ADOX) Principal Investigator: R.Dickson PI's affiliation: CEFAS Mooring Name: 9306 Mooring position: 48.580 deg S, 61.513 deg E Instrument depth: 1890 meters Seafloor depth: 3565 meters Times: starts 04 Mar 1993, ends 08 Mar 1994 Time increment: 60 minutes Instrument type: Aanderaa RCM5 parameter min mean max sd days speed (cm/sec) 1.49 5.41 16.24 2.63 368.8 dir (deg true) 0.00 211.07 359.94 120.44 368.8 u (cm/sec) -13.70 -1.87 4.81 2.60 368.8 v (cm/sec) -15.05 1.38 15.01 4.90 368.8 temp (deg C) 1.83 1.97 2.06 0.04 368.8 CEFAS notes two problems with this file: The series has a large timing discrepancy, probably because one hourly reading is missing. [The current meter's clock was running 66 minutes slow at recovery.] The directions are all suspect; there are very few measurements from 40 to 180 degrees and in this respect the record is similar to the records obtained from the Princess Elizabeth Trough. The problem there was diagnosed as the influence of the angle of the Earth's magnetic field on the RCM5 compasses and it seems to apply to this series also. Since this is the only series from this array to show this, the problem may lie with an incorrectly balanced instrument. Note the spikes in the east component time series. The speeds appear to be genuine (but if the meter is incorrectly balanced it may be under-estimating the speed). Although 9% are at the meter threshold this may be real because a relatively large number of threshold speeds is a feature of most of the series from the two current meter arrays. Thus temperature and speed appear to be good, but direction probably should not be used. CMDAC has prepared an alternate version of this file in which direction, u, and v have been removed. Both versions of the file are available on this disk.
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