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Table 7 Accuracy assessment of new peatlands map with the Ducks Unlimited Canada (DUC) wetland ground validation sites for case study area in northern Alberta

From: Spatially-integrated estimates of net ecosystem exchange and methane fluxes from Canadian peatlands

DU validation sites New peatland map
Bog Poor fen Rich fen Upland Row total Producer’s (%) User’s (%)
Bog 64 4 21 0 89 38 72
Poor fen 34 3 29 0 66 30 5
Rich fen 12 0 41 0 53 37 77
Upland 58 3 19 0 80   
Column total 168 10 110 0 288   
Overall accuracy 38%       
  1. Cells of the table show number of pixels for all the possible correlations between the ground truth (row) and the new peatland map (column). Overall accuracy is sum of diagonal pixels divided by total number of pixels. Errors of commission are described by the Producer’s accuracy, which is the percent correctly identified pixels within the column. Errors of commission are described by the User’s accuracy, which is the percent correctly identified pixels within the row. Overall kappa statistic is 0.11