The influence of sampling frequency on streamflow chemical loads
1997
Roberts, G.
In this paper, monthly loads in the streamflows from a number of UK catchments were calculated using all available chemical data and two degraded data sets comprising one value per month, thus simulating the 'harmonized monitoring scheme' of the Environment Agency. These degraded data sets represent the lowest and highest concentrations of the various chemical determinants. Two-load calculation algorithms were used; one employing continuous-flow records plus instantaneous values, and the other employing instantaneous values only. The results of these algorithms were compared for each determinand - in terms of absolute values and the range of values possible using the degraded monthly sampling intervals.
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