Figure 4 | Scientific Reports

Figure 4

From: First comprehensive quantification of annual land use/cover from 1990 to 2020 across mainland Vietnam

Figure 4

The overall accuracy (OA) and kappa coefficient (KC) of the level-2 Vietnam-wide annual land use/cover maps produced from all the freely available Landsat TM, ETM + and OLI, and Sentinel SAR GRD and MSI images with the random-forest-based algorithm. The OA and KC are obtained by using a confusion matrix and a stratified validation method with independent samples (1050 points/LULC category). The bars indicate uncertainties of OA measured with a 95% confidence interval.

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