Annual loads are calculated by multiplying daily flow with daily nutrient concentration and aggregating over the year. Daily concentration measurements are not available as samples were taken weekly at best, so daily concentration data needs to be in-filled to calculate loads. To calculate the in-filled nutrient data the locally estimated scatterplot smoothing (LOESS) algorithm (Cleveland 1979) was used.
Calculating loads
Technical Report
Loads were calculated for those sites where there was sufficient flow and nutrient data available.
Sidebar
Published
23 July 2015
