Utility of two levels of Change Fraction (CF) data.

<p><strong>Utility of two levels of Change Fraction (CF) data, example in southwest Wyoming. Summer 1994 (target year) image with cloud and shadow/haze cover not captured by the QA bands (A) and summer 2016 (base year) image. </strong><strong>We produced two levels of CF data, a more aggressive version to detect change and exclude pixels from the training data pool (C) and a second to label changed pixels relative to the base year (D). In C and D, pixels included in the training data pool are shown in red. Higher CF values indicate higher confidence a pixel changed between the target and base year. Resulting bare ground prediction for 1994 (E) shows no influence of the cloud or shadow cover. </strong></p>