Date:10/8/07
URL:http://www.scc.rutgers.edu/coastweb/NYCDEPHarbor_survey/docs/water_clarity/secch.htm
Title: Secchi Depth
Today I thought I would revisit the "Secchi Depth" device. I found that secchi depth recording of 5 ft means that it was last visible at five feet below the surface. A higher recording means that the water is clearer and a lower recording means that the water is more turbid. Clearer water allows sunlight to go deep and turbid water does not. This can "[reduce] biological reaeration at lower depths."
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