Indicator
Clarity - Vertical Extinction Coefficient (VEC)
Basics
Clarity - Vertical Extinction Coefficient (VEC)
Vertical Extinction Coefficient
Outcome
Program
% (%)
The vertical extinction coefficient must be less than 0.08 per meter when measured at any depth below the first meter (California and Nevada state standard).
Vertical Extinction Coefficient - The percentage of the light absorbed or scattered in a meter-long vertical column of water.
This Indicator is reported in the following LT Info areas:
Status
Clarity VEC Graphic.JPG

Annual average vertical extinction coefficient (VEC) recorded at the Lake Tahoe Index Station. No data was collected between 1977 and 1982 or in 2012. 

Name Options
Vertical Extinction Coefficient
General

Program Vertical Extinction Coefficient (VEC) Monitoring

Approach

VEC is measured at the Lake Tahoe Index Station at least 24 times annually and at least 12 times annually at the mid-lake station. VEC is measured by lowering a submersible photometer down through the water column.

Partners

Associated Programs data not provided.