Chlorophyll-a CV
 
The Chlorophyll-a CV value is used in computing bloom frequencies (% of time Chl-a exceeds 10, 20, 30, 40, 50, & 60 ppb) based upon observed or predicted Mean Chl-a.
 
It reflects temporal variations in Chl-a and is computed as the  standard deviation of measured ln(Chl-a) across dates at a given station within a given growing season.
 
A default value of 0.62 has been calibrated to CE reservoir data.  Values in the range of 0.5 to 0.7 are typical of other lake and reservoir data sets.