The above graph depicts average secchi depth recorded from March through November, 1997. For each week's data on secchi depth, a weekly average was calculated.
Secchi depth is measured using a black and white secchi disc.
As turbidity increases there will be a decrease in the secchi depth. Secchi depth is measured and recorded in meters. Secchi depth is recorded in meters. During the week of September 22nd, the secchi depth decreases to 1.95 m, compared to 2.55 m from the previous week. Compare the 1996 graph to 1997.