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Note: This addon document is for an older version of GRASS GIS that will be discontinued soon. You should upgrade your GRASS GIS installation, and read the current addon manual page.

NAME

r.stream.variables - Calculation of contiguous stream-specific variables that account for the upstream environment (based on r.stream.watersheds).

KEYWORDS

raster, stream, drainage, hydrology

SYNOPSIS

r.stream.variables
r.stream.variables --help
r.stream.variables variable=name area=string [folder=name] [out_folder=name] output=method[,method,...] [scale=value] [cpu=float] [--help] [--verbose] [--quiet] [--ui]

Flags:

--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--ui
Force launching GUI dialog

Parameters:

variable=name [required]
Name of raster to be converted into a stream-specific variable
area=string [required]
Area of aggregation: across the sub-watersheds or only across sub-streams
Options: watershed, stream
folder=name
Provide the full folder path (same as for r.stream.watersheds)
Default: GISDBASE/folder_structure
out_folder=name
Provide the full folder path for the output stream-specific variable
Default: GISDBASE/stream-specific_variables
output=method[,method,...] [required]
Provide the output aggregation method for the stream-specific variable
upstream cells numbers, minimum, maximum, range, mean, standard deviation, coefficient of variation, sum. Output datatype is Int32
Options: cells, min, max, range, mean, stddev, coeff_var, sum
scale=value
Provide a scale factor to multiply or divide the final stream-specific variable
Provide it e.g. if input raster values are between -1 and 1, use scale=1000 to inicrease the number of decimals - all outputs will be rounded to integers
Default: 1
cpu=float
Number of CPUs used for the parallel computation
Default: 1

Table of contents

DESCRIPTION

REFERENCES

Sami Domisch, Giuseppe Amatulli, Walter Jetz (2015): Near-global freshwater-specific environmental variables for biodiversity analyses in 1 km resolution, Scientific Data 2, 150073, DOI:10.1038/sdata.2015.73

AUTHORS

Giuseppe Amatulli
Sami Domisch

SOURCE CODE

Available at: r.stream.variables source code (history)

Latest change: Mon Jun 28 07:54:09 2021 in commit: 1cfc0af029a35a5d6c7dae5ca7204d0eb85dbc55


Note: This addon document is for an older version of GRASS GIS that will be discontinued soon. You should upgrade your GRASS GIS installation, and read the current addon manual page.

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