Experiment name: ACM11 (Deep Basin) Principal Investigator: H.Mercier PI's affiliation: Lab Phys des Oceans Mooring Name: R1 Mooring position: 0.728 deg N, 14.767 deg W Instrument depth: 2800 meters Seafloor depth: 4235 meters Times: starts 17 Nov 1992, ends 31 Oct 1994 Time increment: 120 minutes Instrument type: Aanderaa RCM5 parameter min mean max sd days speed (cm/sec) 3.40 3.96 16.90 1.58 712.7 dir (deg true) 0.12 192.62 359.76 103.55 712.7 u (cm/sec) -16.74 -0.60 15.73 3.33 712.7 v (cm/sec) -6.85 0.38 12.74 2.57 712.7 temp (deg C) 2.61 2.73 2.86 0.04 712.7 pressure (db) 2798.61 2818.23 2823.35 5.87 712.7 This record appears to be from a current meter with a very high speed threshold, 3.4 cm/sec. Further, nearly 77% of the speeds have this value - indicating that this percentage of the speeds in situ were at ot below 3.4 cm/sec. Virtually all the speeds after May 1993 are at threshold in this record, as are many of those recorded earlier. Speeds this low, consistantly, are not seen in records from the meters above and below this one on the mooring, so it appears that the low speeds may be due to a failure of the instrument. We recommend that you use these speeds with caution, if at all. The directions appear to be good.
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