Experiment name: ACM12 (Deep Basin) Principal Investigator: W.Zenk PI's affiliation: IFM-Kiel Mooring Name: VE/338 Mooring position: 31.137 deg S, 39.433 deg W Instrument depth: 720 meters Seafloor depth: 4675 meters Times: starts 12 Jan 1991, ends 05 Dec 1992 Time increment: 120 minutes Instrument type: Aanderaa RCM8 parameter min mean max sd days speed (cm/sec) 0.99 9.84 32.78 5.69 693.8 dir (deg true) 0.00 212.67 359.77 98.89 693.8 u (cm/sec) -32.75 -3.34 24.83 8.03 693.8 v (cm/sec) -26.24 0.43 30.15 7.31 693.8 temp (deg C) 7.44 9.31 11.58 0.73 693.8 pressure (db) 689.80 727.14 822.00 22.48 693.8 Approximately 8% of the speeds registered by this current meter were below the instrument's threshold, and have been set to the threshold value (1 cm/sec). There is a 4-day episode of very low speeds during 26 - 30 Aug 91 that has the appearance of a rotorcounter failure. Another 10-day episode during 19 - 29 Sep 92 may also represent a rotorcounter failure. In neither case is it certain. During November and December 1991, pressure increases gradually by about 45 db. This increase does not appear in the pressure record from the current meter below this one. It most likely is due to drift in the sensor's response.
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