Secchi Disk

The Secchi disk measures the transparency of the water. A Secchi disk is lowered into a body of water until it can be no longer seen by the observer. This depth of disappearance, called the Secchi depth, is a measure of the transparency of the water.

S4 current meter | Shipek | Millicore filter | CTD | Box core | Rock dredge | Secchi disk | Otter trawl | ROV | CRAB | LARC | GPS

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