How to interprete the comparisons diagrams
For each station and year a diagram is presented which contain an intercomparison between SWD (Short-wave downward, GLOBAL radiation) on the x-axis and SumSW (sum of Diffuse radiation and Direct radiation on a horizontal plane) on the y-axis. SumSW was calculated using the BSRN-Toolbox (Qualitiy Check, comparisons option) see diagram to the right.
In an ideal world SWD and SumSW should be identical. All deviations from identity denote errors.