Tool Potential Annual Insolation
Calculates the annual potential total insolation for given time steps and stores resulting time series in a grid collection. 
- Author: O.Conrad (c) 2018
 
- Menu: Terrain Analysis|Lighting
 
Parameters
|   | Name | Type | Identifier | Description | Constraints | 
| Input | Elevation | Grid, input | DEM | - | - | 
| Output | Annual Insolation | Grids, output | INSOLATION | - | - | 
| Options | Grid System | Grid system | PARAMETERS_GRID_SYSTEM | - | - | 
 | Number of Steps | Integer | STEPS | Number of time steps per year. | Minimum: 2 Maximum: 365 Default: 14 | 
 | Units | Choice | UNITS | Units for output radiation values. | Available Choices: [0] kWh / m2 [1] kJ / m2 [2] J / cm2 Default: 0 | 
 | Resolution [h] | Floating point | HOUR_STEP | Time step size for a day's calculation given in hours. | Minimum: 0.000000 Maximum: 24.000000 Default: 0.500000 | 
 | Reference Year | Integer | YEAR | - | Default: 2000 | 
Command-line
Usage: saga_cmd ta_lighting 7 [-DEM <str>] [-INSOLATION <str>] [-STEPS <num>] [-UNITS <str>] [-HOUR_STEP <double>] [-YEAR <num>]
  -DEM:<str>         	Elevation
	Grid, input
  -INSOLATION:<str>  	Annual Insolation
	Grids, output
  -STEPS:<num>       	Number of Steps
	Integer
	Minimum: 2
	Maximum: 365
	Default: 14
  -UNITS:<str>       	Units
	Choice
	Available Choices:
	[0] kWh / m2
	[1] kJ / m2
	[2] J / cm2
	Default: 0
  -HOUR_STEP:<double>	Resolution [h]
	Floating point
	Minimum: 0.000000
	Maximum: 24.000000
	Default: 0.500000
  -YEAR:<num>        	Reference Year
	Integer
	Default: 2000