SAGA-GIS Tool Library Documentation (v9.1.2)

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.

Parameters

 NameTypeIdentifierDescriptionConstraints
InputCloud FractionsGrid list, inputCOVERSgrid stack of cloud fractions-
HeightsGrid list, inputHEIGHTSgrid stack of geopotential level heights-
Surface ElevationGrid, inputGROUND--
Wind effectGrid, inputWIND--
Cloud BaseGrid, inputCBASE--
OutputTotal Cloud CoverGrid, outputCOVERstatistics-
Number of Cloud Blocks (*)Grid, output, optionalBLOCKS--
OptionsGrid SystemGrid systemPARAMETERS_GRID_SYSTEM--
IntervalFloating pointINTERVALVertical resolution for internal interpolation given in meters.Minimum: 1.000000
Default: 100.000000
Minimum Cloud Cover FractionFloating pointMINCOVERMinimum cloud cover fraction at which a cloud is identified as suchMinimum: -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