Compound Channel Network Analysis

Author: O.Conrad (c) 2024
Menu: Terrain Analysis | Compound Analyses

Description

A one-step tool for the creation of selected terrain parameters related to channels.For details look at the description of the tools used for processing:

[ta_preproc] Sink Removal
[ta_preproc] Fill Sinks (Wang & Liu)
[ta_preproc] Breach Depressions
[ta_channels] Channel Network and Drainage Basins
[ta_channels] Watershed Basins (Extended)
[ta_channels] Overland Flow Distance to Channel Network
[ta_channels] Vertical Distance to Channel Network

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Elevation	grid, input	`ELEVATION`	-	-
Output	Channel Network	shapes, output	`CHANNELS`	-	-
	Drainage Basins	shapes, output	`BASINS`	-	-
	Drainage Sub-Basins	shapes, output	`SUBBASINS`	-	-
	Channel Heads	shapes, output	`HEADS`	-	-
	Channel Mouths	shapes, output	`MOUTHS`	-	-
	Overland Flow Distance	grid, output	`FLOW_DISTANCE`	-	-
	Horizontal Overland Flow Distance	grid, output	`FLOW_DISTHORZ`	-	-
	Vertical Overland Flow Distance	grid, output	`FLOW_DISTVERT`	-	-
	Channel Network Base Level	grid, output	`CHNL_BASE`	-	-
	Channel Network Distance	grid, output	`CHNL_DIST`	-	-
Options	Grid System	grid system	`PARAMETERS_GRID_SYSTEM`	-	-
	Preprocessing	choice	`METHOD_PREPROC`	-	Available Choices: [0] Sink Removal [1] Fill Sinks (Wang & Liu) [2] Breach Depressions [3] none Default: 0
	Channel Density	integer number	`THRESHOLD`	Strahler order to begin a channel.	Minimum: 1 Default: 5

Command Line


Usage: saga_cmd ta_compound 3 [-ELEVATION ] [-CHANNELS ] [-BASINS ] [-SUBBASINS ] [-HEADS ] [-MOUTHS ] [-FLOW_DISTANCE ] [-FLOW_DISTHORZ ] [-FLOW_DISTVERT ] [-CHNL_BASE ] [-CHNL_DIST ] [-METHOD_PREPROC ] [-THRESHOLD ]
  -ELEVATION:     	Elevation
	grid, input
  -CHANNELS:      	Channel Network
	shapes, output
  -BASINS:        	Drainage Basins
	shapes, output
  -SUBBASINS:     	Drainage Sub-Basins
	shapes, output
  -HEADS:         	Channel Heads
	shapes, output
  -MOUTHS:        	Channel Mouths
	shapes, output
  -FLOW_DISTANCE: 	Overland Flow Distance
	grid, output
  -FLOW_DISTHORZ: 	Horizontal Overland Flow Distance
	grid, output
  -FLOW_DISTVERT: 	Vertical Overland Flow Distance
	grid, output
  -CHNL_BASE:     	Channel Network Base Level
	grid, output
  -CHNL_DIST:     	Channel Network Distance
	grid, output
  -METHOD_PREPROC:	Preprocessing
	choice
	Available Choices:
	[0] Sink Removal
	[1] Fill Sinks (Wang & Liu)
	[2] Breach Depressions
	[3] none
	Default: 0
  -THRESHOLD:     	Channel Density
	integer number
	Minimum: 1
	Default: 5