The results showed that halving the sample size while maintaining the stratified allocation method, yielded similar results when compared to the original sample size (differences in OE and CE did not exceed 5% in any of the products, while differences in DC did not exceed 2%). For a sample size of n/4, the validation results were more unstable (differences in DC reached up to 9% and confidence intervals were higher). The results provide evidence for the optimal sampling size for the accuracy assessment of different BA products over the Amazon basin. |
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CITATIONS
Cited by 3 scholarly publications.
Earth observing sensors
Landsat
MODIS
Accuracy assessment
Error analysis
Spatial resolution
Statistical analysis