Each
parameter has two legends. The top legend represents the full range of
values that could be measured and the bottom legend represents those
actually found for Lake George. Next to the legends are the histograms
for each parameter by year.
The histograms represent the number of pixels in the image in each of
the water quality classes. The class number in the histogram refers to
the class category in the legend of the Lake George values (shown to
the left).
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