Lake Tahoe Seasonal Clarity Analysis
The clarity of Lake Tahoe, observed using a Secchi disk, continues to be a sentinel metric. It is influenced by both physical and biological processes and has had a declining trend over decades of monitoring, with differences apparent between summer and winter patterns. This document summarizes key findings of an investigation on Lake Tahoe water clarity, its long-term variability, and the relative importance of several influencing variables and processes.
This investigation focused on factors relevant to the apparent divergence in clarity between summer and winter periods, on how in-lake physical and ecological drivers influenced both seasonal and historic clarity trends, and on evaluating five research hypotheses developed by Tahoe agencies.
Contact for more information: Alison Toy; firstname.lastname@example.org