DEM uncertainty propagation to flood map

monte carlo

Result:

• red - hard, H <205 m, P=50%

• blue - soft, H<205 m, P=90%

• cyjan - soft H<205 m, P=100%

Question, how can the analytical method (using cumulative distribution) perform the analysis?

How does NMT error affect the reliability of GIS analysis?

Uncertainty of slopes - monte carlo method

Note: check in which units the slopes are calculated in the modeler

Difference map = slope - slope_random

Histogram of the difference map (standard deviation as an estimator of the reliability of the slopes)

Raster info - SD - see "tails"