Items contained in the selected data set:
Available Data - Time shows availability of data (parameters) over time for a given site in charts. Each point (rectangle) represents a unique combination of a number of parameters (x axis) and sampling site-year (y axis).
Green rectangles represent number of parameters measured in samples per year within the selected sampling period. The more data available, the larger and darker the rectangle appears. Hover the mouse over a rectangle to see its summary table.
Please note that the colour of a rectangle describes current data selection (please note that the same colour can correspond to a different number of parameters upon selection of another set of sites, years and other variables etc.).