Meaning Secchi disk
What does Secchi disk mean? Here you find 2 meanings of the word Secchi disk. You can also add a definition of Secchi disk yourself
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Secchi diskA white disk, 30 cm (12 in.) or more in diameter, that is lowered into the sea to estimate transparency of the water. The depths are noted at which it first disappears when lowered and reappears when [..]
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Secchi diskA flat, white disk lowered into the water by a rope until it is just barely visible. At this point, the depth of the disk from the water surface is the recorded Secchi disk transparency.
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