t.rast.import.gdalvrt - GRASS GIS manual

NAME

t.rast.import.gdalvrt - Create a VRT (Virtual Raster Tile) from multiple raster files and import it to a STRDS.

KEYWORDS

SYNOPSIS

t.rast.import.gdalvrt

t.rast.import.gdalvrt --help

t.rast.import.gdalvrt [-lfe] input=name suffix=string [vrt_directory=name] output=name [title=string] [description=string] bands=name [basename=string] start_time=string [end_time=string] [file_pattern=string] [memory=integer] [--overwrite] [--help] [--verbose] [--quiet] [--ui]

Flags:

-l: Link the raster files using r.external
-f: Link the raster files in a fast way, without reading metadata using r.external
-e: Extend existing STRDS
--overwrite: Allow output files to overwrite existing files
--help: Print usage summary
--verbose: Verbose module output
--quiet: Quiet module output
--ui: Force launching GUI dialog

Parameters:

input=name [required]: Name of input directory with raster files to create VRT from
suffix=string [required]: Suffix of files to include in VRT (default: .tif); Default: tif
vrt_directory=name: Name of directory into which VRT-files are written (default=input)
output=name [required]: Name of the output space time raster dataset
title=string: Title for the output STRDS (only used for new STRDS)
description=string: Description of the output STRDS (only used for new STRDS)
bands=name [required]: JSON file with band configuration
basename=string: Basename for VRT and GRASS raster maps to create
start_time=string [required]: Start time (ISO format) to register the VRT / GRASS raster maps with
end_time=string: End time (ISO format) to register the VRT / GRASS raster maps with
file_pattern=string: File name pattern to import
memory=integer: Maximum memory to be used (in MB); Cache size for raster rows; Default: 300

DESCRIPTION
EXAMPLE
- Daily mosaic for Sentinel-3 Fractiona Snow Cover
SEE ALSO
AUTHOR

DESCRIPTION

t.rast.import.gdalvrt imports multiple external raster files as virtual mosaic (VRT) and registeres the resulting map in a Space Time Raster Dataset (STRDS).

EXAMPLE

Daily mosaic for Sentinel-3 Fractiona Snow Cover

Patching multiband Sentinel-2 (MSI) L1C data into a daily mosaic:

t.rast.import.gdalvrt input=./ output=S2_L1C_daily \
  bands=./L1C_bands.json file_pattern="S2*L1C*20250707*.tif" -e --o
t.info S2_L1C_daily

AUTHOR

Stefan Blumentrath, NVE

SOURCE CODE

Available at: t.rast.import.gdalvrt source code (history)

Accessed: Monday Jan 12 08:59:18 2026