Tool Isochrones Variable Speed (interactive)

Calculation of isochrones with variable speed.
In case a cell in an optional input grid is NoData, the corresponding parameter value will be used instead of skipping this cell.
This is the interactive tool version, where a left mouse click will trigger the calculation for the selected cell.

References

Al-Smadi, Mohammad (1998): Incorporating spatial and temporal variation of watershed response in a gis-based hydrologic model. Faculty of the Virginia Polythecnic Insitute and State University. MsC Thesis. online.
Martínez Álvarez, V.; Dal-Ré Tenreiro, R.; García García, A. I.; Ayuga Téllez, F. (): Modelación distribuida de la escorrentía superficial en pequeñas cuencas mediante SIG. Evaluación experimental.
Olaya, V. (2004): Hidrologia computacional y modelos digitales del terreno. Alqua. 536 pp.

Author: V.Olaya (c) 2004, V.Wichmann (c) 2015
Menu: Terrain Analysis|Hydrology|Dynamics

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Elevation	Grid, input	`DEM`	-	-
	Slope	Grid, input	`SLOPE`	-	-
	Catchment Area	Grid, input	`FLOWACC`	-	-
	Curve Number (*)	Grid, input, optional	`CN`	-	-
	Manning's N (*)	Grid, input, optional	`MANNING`	-	-
Output	Time Out(h)	Grid, output	`TIME`	-	-
Output	Speed (m/s)	Grid, output	`SPEED`	-	-
Options	Grid System	Grid system	`PARAMETERS_GRID_SYSTEM`	-	-
	Avg. Manning's N	Floating point	`AVGMANNING`	-	Default: 0.150000
	Avg. Curve Number	Floating point	`AVGCN`	-	Default: 75.000000
	Mixed Flow Threshold (ha)	Floating point	`THRSMIXED`	-	Default: 18.000000
	Channel Definition Threshold (ha)	Floating point	`THRSCHANNEL`	-	Default: 360.000000
	Avg. Rainfall Intensity (mm/h)	Floating point	`AVGRAINFALL`	-	Default: 1.000000
	Channel side slope(m/m)	Floating point	`CHANSLOPE`	-	Default: 0.500000
	Min. Flow Speed (m/s)	Floating point	`MINSPEED`	-	Default: 0.050000
(*) optional

Command-line

this interactive tool can not be executed.