sill depth

sill depth

[′sil ‚depth]
(oceanography)
The maximum depth at which there is horizontal communication between an ocean basin and the open ocean. Also known as threshold depth.
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References in periodicals archive ?
167,00 st occupancy sill depth thresholds with textile flooring, 25 cm deep, Allowance approx.
CTD profiles in October 1994 showed warm water down to sill depth (30-40 m) with cold (-1[degrees]C) water extending to the floor of the fiord.