Basic Terrain Analysis
- Author: O.Conrad (c) 2005
- Menu: Terrain Analysis
Description
A selection of basic parameters and objects to be derived from a Digital Terrain Model using standard settings.
Parameters
| Name | Type | Identifier | Description | Constraints |
Input | Elevation | grid, input | ELEVATION | - | - |
Output | Analytical Hillshading | grid, output | SHADE | - | - |
Slope | grid, output | SLOPE | - | - |
Aspect | grid, output | ASPECT | - | - |
Plan Curvature | grid, output | HCURV | - | - |
Profile Curvature | grid, output | VCURV | - | - |
Convergence Index | grid, output | CONVERGENCE | - | - |
Closed Depressions | grid, output | SINKS | - | - |
Total Catchment Area | grid, output | FLOW | - | - |
Topographic Wetness Index | grid, output | WETNESS | - | - |
LS-Factor | grid, output | LSFACTOR | - | - |
Channel Network | shapes, output | CHANNELS | - | - |
Drainage Basins | shapes, output | BASINS | - | - |
Channel Network Base Level | grid, output | CHNL_BASE | - | - |
Channel Network Distance | grid, output | CHNL_DIST | - | - |
Valley Depth | grid, output | VALL_DEPTH | - | - |
Relative Slope Position | grid, output | RSP | - | - |
Options | Grid System | grid system | PARAMETERS_GRID_SYSTEM | - | - |
Channel Density | integer number | THRESHOLD | Strahler order to begin a channel. | Minimum: 1
Default: 5 |
Command Line
Usage: saga_cmd ta_compound 0 [-ELEVATION ] [-SHADE ] [-SLOPE ] [-ASPECT ] [-HCURV ] [-VCURV ] [-CONVERGENCE ] [-SINKS ] [-FLOW ] [-WETNESS ] [-LSFACTOR ] [-CHANNELS ] [-BASINS ] [-CHNL_BASE ] [-CHNL_DIST ] [-VALL_DEPTH ] [-RSP ] [-THRESHOLD ]
-ELEVATION: Elevation
grid, input
-SHADE: Analytical Hillshading
grid, output
-SLOPE: Slope
grid, output
-ASPECT: Aspect
grid, output
-HCURV: Plan Curvature
grid, output
-VCURV: Profile Curvature
grid, output
-CONVERGENCE: Convergence Index
grid, output
-SINKS: Closed Depressions
grid, output
-FLOW: Total Catchment Area
grid, output
-WETNESS: Topographic Wetness Index
grid, output
-LSFACTOR: LS-Factor
grid, output
-CHANNELS: Channel Network
shapes, output
-BASINS: Drainage Basins
shapes, output
-CHNL_BASE: Channel Network Base Level
grid, output
-CHNL_DIST: Channel Network Distance
grid, output
-VALL_DEPTH: Valley Depth
grid, output
-RSP: Relative Slope Position
grid, output
-THRESHOLD: Channel Density
integer number
Minimum: 1
Default: 5