Metadata and plots from OSU Buoy Group Accession 4665

Experiment name: AnSlope 2003-04 Principal Investigator: A.L.Gordon/A.Orsi/R.D.Pillsbury PI's affiliation: LDEO/TAMU/OSU Mooring Name: West B-1 Mooring position: 71.970 deg S, 172.757 deg E Instrument depth: 432 meters Seafloor depth: 1025 meters Times: starts 06 Mar 2003, ends 26 Feb 2004 Time increment: 30 minutes Instrument type: Aanderaa RCM8s parameter min mean max sd days speed (cm/sec) 0.92 42.83 178.50 36.43 357.9 dir (deg true) 0.00 252.63 359.78 80.99 357.9 u (cm/sec) -165.98 -32.26 24.28 36.29 357.9 v (cm/sec) -69.49 2.90 126.59 28.19 357.9 temp (deg C) -1.55 0.92 1.28 0.31 357.9 pressure (db) 436.40 512.40 734.70 100.08 357.9 The speed series displays an unusual feature: at times of high speed (which occur in regular diurnal cycles in this record and peak in the range of 100 to 150 cm/sec) the curve drops to much lower values for short intervals and then resumes at high levels. A check of the raw values, as well as the general configuration of these episodes, shows that the speed sensor is not wrapping around its 0 to 1023 range. A liklier explanation is that the angle of attack at the Savonius rotor is less than 90 degrees at speeds of this magnitude (because of mooring blowover) and the rotor is turning more slowly than it would otherwise. Pressure often goes offscale at about 734 decibars during these high-speed episodes. The current meter's clock was running 12 minutes 25 seconds slow at recovery.

The axes of the PVD are labelled in kilometers. Boxes mark the beginning of each month.

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