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The undulating oceanographic recorder mark 2
Aiken, J. (1981). The undulating oceanographic recorder mark 2. J. Plankton Res. 3(4): 551-560
In: Journal of Plankton Research. Oxford University Press: New York,. ISSN 0142-7873, more
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  • Aiken, J.

    The Undulating Oceanogrphic Recorder (UOR) Mark 2 is a self-contained oceanographic sampler which can be towed from research vessels and merchant ships at speeds up to 13.5m. S-1 (26 knots). It can be launched and recovered by non-scientist crew-members while the vessel is under way. It is used to carry instrumentation to sample plankton continuously and to measure chlorophyll (range 0 to 100 mg.m -3), radiant energy (range 0 to 1000 µ E.m -2.s-1) temperature (range 0 to 30 °C) and salinity (range 32 to 37 ppt.), all of which are recorded, with the measurement of depth (range 0 to 100 m), by a miniature digital tape recorder, with a resolution of 0.1% of full scale. The UOR Mark 2 has a towing speed range of 4 to 13.5 m.s-1 and it undulates from the surface to depths of 55 m (at 4 m.s -1) and 36 m (at 10 m.s-1) with 150 m of unfaired 8 mm od steel cable in water; the undulation length is pre-set between 800 and 4000 m.

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