Secchi Reading Simulator

Click 'Take Reading' to try one of the Lake Types.

 Lake TypeDescription
ClearClear lakes typically have a blue background color and Secchi reading greater than 4 meters.
IntermediateIntermediate lakes typically have a Secchi reading in the range of three to seven meters. The background color may be blue or muted green or brown.
ProductiveProductive lakes have a green background color, high algae concentrations, and typically have Secchi transparency readings less than three meters.
DystrophicDystrophic lakes have a distinct tea or rootbeer color with typical Secchi readings less than 3 meters.
Dystrophic and ProductiveThese lakes typically have a green-brown background color and limited transparency with Secchi reading typically less than three meters.

Simulator Size: NormalSmaller
Note: Smaller animation size may improve performance on older computers.