Tool Cloud Overlap

This tool calculates cloud overlay based on the maximum random overlap assumption for atmospheric cloud layers above ground. Alpha is a constant and a further parameter is the minimum cloud fraction, at which a cloud is identified as such.

Author: D.N. Karger (c) 2019
Menu: Climate and Weather|Tools

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Cloud Fractions	Grid list, input	`COVERS`	grid stack of cloud fractions	-
	Heights	Grid list, input	`HEIGHTS`	grid stack of geopotential level heights	-
	Surface Elevation	Grid, input	`GROUND`	-	-
	Wind effect	Grid, input	`WIND`	-	-
	Cloud Base	Grid, input	`CBASE`	-	-
Output	Total Cloud Cover	Grid, output	`COVER`	statistics	-
Output	Number of Cloud Blocks (*)	Grid, output, optional	`BLOCKS`	-	-
Options	Grid System	Grid system	`PARAMETERS_GRID_SYSTEM`	-	-
	Interval	Floating point	`INTERVAL`	Vertical resolution for internal interpolation given in meters.	Minimum: 1.000000 Default: 100.000000
	Minimum Cloud Cover Fraction	Floating point	`MINCOVER`	Minimum cloud cover fraction at which a cloud is identified as such	Minimum: -1.000000 Maximum: 1.000000 Default: 0.100000
(*) optional

Command-line

Usage: saga_cmd climate_tools 25 [-COVERS <str>] [-HEIGHTS <str>] [-GROUND <str>] [-WIND <str>] [-CBASE <str>] [-COVER <str>] [-BLOCKS <str>] [-INTERVAL <double>] [-MINCOVER <double>]
  -COVERS:<str>     	Cloud Fractions
	Grid list, input
  -HEIGHTS:<str>    	Heights
	Grid list, input
  -GROUND:<str>     	Surface Elevation
	Grid, input
  -WIND:<str>       	Wind effect
	Grid, input
  -CBASE:<str>      	Cloud Base
	Grid, input
  -COVER:<str>      	Total Cloud Cover
	Grid, output
  -BLOCKS:<str>     	Number of Cloud Blocks
	Grid, output, optional
  -INTERVAL:<double>	Interval
	Floating point
	Minimum: 1.000000
	Default: 100.000000
  -MINCOVER:<double>	Minimum Cloud Cover Fraction
	Floating point
	Minimum: -1.000000
	Maximum: 1.000000
	Default: 0.100000