Valley Depth ta_channels ParameterRaster|ELEVATION|Elevation|False OutputRaster|VALLEY_DEPTH|Valley Depth OutputRaster|RIDGE_LEVEL|Ridge Level ParameterNumber|THRESHOLD|Tension Threshold [Percentage of Cell Size]| 0.000000|None| 1.000000 ParameterBoolean|NOUNDERGROUND|Keep Ridge Level above Surface|True ParameterNumber|ORDER|Ridge Detection Threshold| 1| 7| 4