Sampling strategy
Sampling strategy - contextEnvironmental samplingSpatial variabilityDevelopment of a sampling schemeSpatial variability -> sampling scheme (1)Spatial variability -> sampling scheme (2)
Temporal variabilitySampling and storage equipmentPotential sources of analyte lossesSample contamination
End of lesson Temporal variability 
sampling scheme
For systems with random temporal variations in the concentration, it is impossible to use the measured data to predict future concentrations (indicated by '?' in the figure).
In contrast, for systems with systematic temporal variations in the concentration, it is possible to use the measured data to predict future concentrations (as indicated by the dashed lines in the Figures).
