Effective Air Flow Heights

Author(s)	J.Boehner, O.Conrad (c) 2008
Library ID	ta_morphometry
Tool ID	11
Version	1.0
Menu	Terrain Analysis \| Climate and Weather

Description

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Elevation	grid, input	`DEM`	-	-
	Wind Direction	grid, input, optional	`DIR`	Direction into which the wind blows, starting with 0 for North and increasing clockwise.	-
	Wind Speed	grid, input, optional	`LEN`	-	-
Output	Effective Air Flow Heights	grid, output	`AFH`	-	-
Options	Wind Direction Units	choice	`DIR_UNITS`	-	Available Choices: [0] radians [1] degree Default: 0
	Scaling	floating point number	`LEN_SCALE`	-	Default: 1
	Search Distance [km]	floating point number	`MAXDIST`	-	Minimum: 0.000000 Default: 300
	Constant Wind Direction	floating point number	`DIR_CONST`	constant direction into the wind blows, given as degree	Default: 135
	Old Version	boolean	`OLDVER`	use old version for constant wind direction (no acceleration and averaging option)	Default: 0
	Acceleration	floating point number	`ACCEL`	-	Minimum: 1.000000 Default: 1.5
	Elevation Averaging	boolean	`PYRAMIDS`	use more averaged elevations when looking at increasing distances	Default: 0
	Windward Factor	floating point number	`LEE`	-	Default: 0.5
	Luv Factor	floating point number	`LUV`	-	Default: 3

Command Line


Usage: saga_cmd ta_morphometry 11 [-DEM ] [-DIR ] [-DIR_UNITS ] [-LEN ] [-LEN_SCALE ] [-AFH ] [-MAXDIST ] [-DIR_CONST ] [-OLDVER ] [-ACCEL ] [-PYRAMIDS ] [-LEE ] [-LUV ]
  -DEM:            Elevation
	grid, input
  -DIR:            Wind Direction
	grid, input, optional
  -DIR_UNITS:      Wind Direction Units
	choice
	Available Choices:
	[0] radians
	[1] degree
	Default: 0
  -LEN:            Wind Speed
	grid, input, optional
  -LEN_SCALE:   Scaling
	floating point number
	Default: 1
  -AFH:            Effective Air Flow Heights
	grid, output
  -MAXDIST:     Search Distance [km]
	floating point number
	Minimum: 0.000000
	Default: 300
  -DIR_CONST:   Constant Wind Direction
	floating point number
	Default: 135
  -OLDVER:         Old Version
	boolean
	Default: 0
  -ACCEL:       Acceleration
	floating point number
	Minimum: 1.000000
	Default: 1.5
  -PYRAMIDS:       Elevation Averaging
	boolean
	Default: 0
  -LEE:         Windward Factor
	floating point number
	Default: 0.5
  -LUV:         Luv Factor
	floating point number
	Default: 3