Secchi disk transparency definition

Secchi disk transparency means the transparency of water as measured by a Secchi disk, a Secchi tube, or a transparency tube.
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Secchi disk transparency means the average water depth of the point where a weighted white or black and white disk disappears when viewed from the shaded side of a boat, and the point where it reappears upon raising it after it has been lowered beyond visibility. The Secchi disk measures water clarity and is usually used in lakes.
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Examples of Secchi disk transparency in a sentence

  • Field measurements include water depth, water temperature, and Secchi disk transparency.

  • An algal bloom is defined as a planktonic growth of algae which causes Secchi disk transparency to be less than 2.0 meters.

  • Application of an algicide may only occur after the Secchi disk transparency of the water is less than 2 meters.

  • Three parameters are the most important measures of eutrophication in most New York lakes: total phosphorus, chlorophyll a (estimating the amount of algae), and Secchi disk transparency.

  • While depth of the zone varies with many factors, it can be estimated as a multiple of the Secchi disk transparency (SDT).

  • It also affects the length of the recreational season Secchi Disk Transparency (m) Conductivity (µmho/cm) pH Color (true) (platinum color units) Phosphorus (total, mg/l) Nitrogen (nitrate, ammonia, and total (dissolved), mg/l) Chlorophyll a (µg/l) Calcium (mg/l)Determined by measuring the depth at which a black and white disk disappears from sight, the Secchi disk transparency estimates the clarity of the water.

  • It is conceivable that a respondent may have switched prior to marriage, so that his or her religion during childhood was different than his or her spouse’s childhood religion but the same at the time of marriage.

  • Secchi disk transparency, (B) total phosphorus concentration, (C) chlorophyll-a concentration, and (D) Carlson’s Trophic State Index.

  • Secchi disk transparency, total phosphorus, and chlorophyll-a values show no significant positive or negative trend.

  • For these reasons, the Court should not treat this case as a class action, and if the Court does not dismiss the Complaint, it should order that the Complaint be amended accordingly.

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