Lake Chlorophyll-a Levels after period of rain (above) and after dry period (below):

(Chlorophyll-a is a measure of oxygenic photosynthetic activity.)

Notice: Each pixel is 30 square meters (roughly 100ft x 100ft).

Above:

  • Candlewood Lake as sparse chlorophyll-a levels in the main body after a large rain event. 
  • Chlorophyll-a levels are high at the lake borders. 
  • Chlorophyll-a levels are high for the Housatonic River feeding Lake Lillinonah following a high flow wet period. 

Below:

  • Candlewood Lake has elevated chlorophyll-a levels after a prolonged period of no rain. 
  • With no storm waters in a dry period, water infiltration to Candlewood Lake is dominated by septic effluent. 

 

3-Dimensions Disclosed by Satellite Flyover Data Capture:

Lake Pollution Study

1) Nutrient Phosphorus

2) Chlorophyll a (indicates blue-green algae levels) (This page)

3) Phycocyanin (indicates photosynthesis activity)

[To download for printing: right-click (Windows); control-click (Mac)]

 

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