Tool CliffMetrics

CliffMetrics (Automatic Cliff Metrics delineation) delineates the location of the coastline, coastline normals, and cliff top and toe location along these normals.

References

Payo, A., Jigena Antelo, B., Hurst, M., Palaseanu-Lovejoy, M., Williams, C., Jenkins, G., Lee, K., Favis-Mortlock, D., Barkwith, A., Ellis, M.A. (2018): Development of an automatic delineation of cliff top and toe on very irregular planform coastlines (CliffMetrics v1.0). Geoscientific Model Development 11, 4317–4337. doi: 10.5194/gmd-11-4317-2018..

Author: Payo et al. (c) 2018, SAGA Interface by O.Conrad (c) 2019
Menu: Terrain Analysis|Coastal Morphology

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Elevation	Grid, input	`DEM`	-	-
Output	Sediment Top Elevation	Grid, output	`SEDIMENT_TOP`	-	-
	Coastline (*)	Grid, output, optional	`RASTER_COAST`	-	-
	Normals (*)	Grid, output, optional	`RASTER_NORMAL`	-	-
	Coastline	Shapes, output	`COAST`	-	-
	Coastline-Normal Profiles	Shapes, output	`NORMALS`	-	-
	Cliff Top Points	Shapes, output	`CLIFF_TOP`	-	-
	Cliff Toe Points	Shapes, output	`CLIFF_TOE`	-	-
	Coast Points	Shapes, output	`COAST_POINT`	-	-
	Invalid Coastline-Normal Profiles (*)	Shapes, output, optional	`INVALID_NORMALS`	-	-
	Coastline Curvature (*)	Shapes, output, optional	`COAST_CURVATURE`	-	-
	Profile Data	Table, output	`PROFILES`	-	-
Options	Grid System	Grid system	`PARAMETERS_GRID_SYSTEM`	-	-
	Still Water Level	Floating point	`StillWaterLevel`	Still water level (m) used to extract the shoreline.	Minimum: 0.000000 Default: 1.000000
	Coastline Smoothing Algorithm	Choice	`CoastSmooth`	Vector coastline smoothing algorithm.	Available Choices: [0] none [1] running mean [2] Savitsky-Golay Default: 1
	Coastline Smoothing Window Size	Integer	`CoastSmoothWindow`	Size of coastline smoothing window, resulting kernel size will be: 1 + 2 * size.	Minimum: 1 Default: 30
	Polynomial Order for Savitsky-Golay	Integer	`SavGolCoastPoly`	Order of coastline profile smoothing polynomial for Savitsky-Golay smoothing: usually 2 or 4, max is 6.	Minimum: 1 Maximum: 6 Default: 4
	Scale Raster Output Values	Boolean	`ScaleRasterOutput`	If needed, scale GIS raster output values.	Default: 1
	Random Edge for Coastline Search	Boolean	`RandomCoastEdgeSearch`	Random edge for coastline search.	Default: 1
	Length of Coastline Normals	Floating point	`CoastNormalLength`	Length of coastline normals (m).	Minimum: 0.010000 Default: 500.000000
	Vertical Tolerance	Floating point	`EleTolerance`	Vertical tolerance to avoid false cliff tops and toes.	Minimum: 0.010000 Default: 0.500000
	Main Output File Directory	File path	`OutPath`	-	-
(*) optional

Command-line

Usage: saga_cmd ta_cliffmetrics 0 [-DEM <str>] [-SEDIMENT_TOP <str>] [-RASTER_COAST <str>] [-RASTER_NORMAL <str>] [-COAST <str>] [-NORMALS <str>] [-CLIFF_TOP <str>] [-CLIFF_TOE <str>] [-COAST_POINT <str>] [-INVALID_NORMALS <str>] [-COAST_CURVATURE <str>] [-PROFILES <str>] [-StillWaterLevel <double>] [-CoastSmooth <str>] [-CoastSmoothWindow <num>] [-SavGolCoastPoly <num>] [-ScaleRasterOutput <str>] [-RandomCoastEdgeSearch <str>] [-CoastNormalLength <double>] [-EleTolerance <double>] [-OutPath <str>]
  -DEM:<str>                  	Elevation
	Grid, input
  -SEDIMENT_TOP:<str>         	Sediment Top Elevation
	Grid, output
  -RASTER_COAST:<str>         	Coastline
	Grid, output, optional
  -RASTER_NORMAL:<str>        	Normals
	Grid, output, optional
  -COAST:<str>                	Coastline
	Shapes, output
  -NORMALS:<str>              	Coastline-Normal Profiles
	Shapes, output
  -CLIFF_TOP:<str>            	Cliff Top Points
	Shapes, output
  -CLIFF_TOE:<str>            	Cliff Toe Points
	Shapes, output
  -COAST_POINT:<str>          	Coast Points
	Shapes, output
  -INVALID_NORMALS:<str>      	Invalid Coastline-Normal Profiles
	Shapes, output, optional
  -COAST_CURVATURE:<str>      	Coastline Curvature
	Shapes, output, optional
  -PROFILES:<str>             	Profile Data
	Table, output
  -StillWaterLevel:<double>   	Still Water Level
	Floating point
	Minimum: 0.000000
	Default: 1.000000
  -CoastSmooth:<str>          	Coastline Smoothing Algorithm
	Choice
	Available Choices:
	[0] none
	[1] running mean
	[2] Savitsky-Golay
	Default: 1
  -CoastSmoothWindow:<num>    	Coastline Smoothing Window Size
	Integer
	Minimum: 1
	Default: 30
  -SavGolCoastPoly:<num>      	Polynomial Order for Savitsky-Golay
	Integer
	Minimum: 1
	Maximum: 6
	Default: 4
  -ScaleRasterOutput:<str>    	Scale Raster Output Values
	Boolean
	Default: 1
  -RandomCoastEdgeSearch:<str>	Random Edge for Coastline Search
	Boolean
	Default: 1
  -CoastNormalLength:<double> 	Length of Coastline Normals
	Floating point
	Minimum: 0.010000
	Default: 500.000000
  -EleTolerance:<double>      	Vertical Tolerance
	Floating point
	Minimum: 0.010000
	Default: 0.500000
  -OutPath:<str>              	Main Output File Directory
	File path