Land Cover Scenario Offset

Author(s)	R.Fisher (c) 2015
Library ID	tta_tools
Tool ID	tta_LandCover
Version	1.0
Menu	Grid \| Analysis \| Travel Time Analysis

Description

Prepare your scenario for subsequent travel time analysis with information on topography, road network, and vegetation cover. Topography is used for automated channel network delineation. Resulting channels are categorized by their Strahler order. In the final land cover map channels use numbers above 100 (i.e. '101, 102, 103, ...' representing increasing Strahler orders). Likewise roads use numbers above 200 with the exact number based on the attribute chosen to specify the road type (i.e. 201, 202, 203, ...). Vegetation cover takes the original numbers for the final map, so these should not intermingle with numbers used for channel and road representation. Find further information at Rohan Fisher's web page on Travel Time Modelling with SAGA.

References

Fisher, R., and Lassa, J. (2017): Interactive, open source, travel time scenario modelling: tools to facilitate participation in health service access analysis. International Journal of Health Geographics, 16(13). doi:10.1186/s12942-017-0086-8

Ray, N., and Ebener, S. (2008): AccessMod 3.0: computing geographic coverage and accessibility to health care services using anisotropic movement of patients. International Journal of Health Geographics, 7(63). doi:10.1186/1476-072X-7-63

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Roads	shapes, input	`ROAD_LINES`	-	-
	Channel Network	shapes, input, optional	`CHANNEL_LINES`	-	-
	Elevation	grid, input	`DEM`	-	-
	Vegetation	grid, input	`VEGETATION`	-	-
Output	Land Cover	grid, output	`LANDCOVER`	-	-
Options	Attribute	table field	`ROAD_CLASS`	attribute specifying road's type with regard to travel time	-
	Stream Order	table field	`CHANNEL_ORDER`	-	-
	Grid System	grid system	`DEM_SYSTEM`	-	-
	Grid System	grid system	`LANDCOVER_SYSTEM`	-	-

Command Line


Usage: saga_cmd tta_tools tta_LandCover [-ROAD_LINES ] [-ROAD_CLASS ] [-CHANNEL_LINES ] [-CHANNEL_ORDER ] [-DEM ] [-VEGETATION ] [-LANDCOVER ]
  -ROAD_LINES:      Roads
	shapes, input
  -ROAD_CLASS:      Attribute
	table field
  -CHANNEL_LINES:   Channel Network
	shapes, input, optional
  -CHANNEL_ORDER:   Stream Order
	table field
  -DEM:             Elevation
	grid, input
  -VEGETATION:      Vegetation
	grid, input
  -LANDCOVER:       Land Cover
	grid, output