GDAL-RASTER-TRI(1) GDAL GDAL-RASTER-TRI(1) (NAME) gdal-raster-tri - (TRI) 3.11 . (SYNOPSIS) Usage: gdal raster tri [OPTIONS] Generate a Terrain Ruggedness Index (TRI) map Positional arguments: -i, --input Input raster datasets [required] [not available in pipelines] -o, --output Output raster dataset [required] [not available in pipelines] Common Options: -h, --help Display help message and exit --json-usage Display usage as JSON document and exit --config = Configuration option [may be repeated] -q, --quiet Quiet mode (no progress bar or warning message) [not available in pipelines] Options: -f, --of, --format, --output-format Output format ("GDALG" allowed) [not available in pipelines] --co, --creation-option = Creation option [may be repeated] [not available in pipelines] --overwrite Whether overwriting existing output dataset is allowed [not available in pipelines] Mutually exclusive with --append --append Append as a subdataset to existing output [not available in pipelines] Mutually exclusive with --overwrite -b, --band Input band (1-based index) (default: 1) --algorithm Algorithm to compute TRI. ALGORITHM=Riley|Wilson (default: Riley) --no-edges Do not try to interpolate values at dataset edges or close to nodata values Advanced Options: --if, --input-format Input formats [may be repeated] [not available in pipelines] --oo, --open-option = Open options [may be repeated] [not available in pipelines] (DESCRIPTION) gdal raster tri . TRI Terrain Ruggedness Index ( ) . gdal raster pipeline . -9999 nodata . nodata 3x3 nodata . nodata 3x3 --no-edges nodata . GDALG ( / ) (GDALG OUTPUT (ON-THE-FLY / STREAMED DATASET)) JSON GDALG . GDALG: GDAL Streamed Algorithm (pipeline) / (streamed) . (PROGRAM-SPECIFIC OPTIONS) --algorithm Riley|Wilson : o Riley . . : Riley, S.J., De Gloria, S.D., Elliot, R. (1999): A Terrain Ruggedness that Quantifies Topographic Heterogeneity. Intermountain Journal of Science, Vol.5, No.1-4, pp.23-27 o Wilson . (bathymetric) . : Wilson et al. 2007, Marine Geodesy 30:3-35. -b, --band ( ) TRI . --no-edges nodata . (STANDARD OPTIONS) --append . GTiff -- GeoTIFF File Format GPKG -- GeoPackage raster. . --co, --creation-option = . GeoTIFF (tiled) . . . --formats . Raster drivers . --if, --input-format / () . . . . . --oo, --open-option = ( ). . -f, --of, --format, --output-format . : gdal --formats | grep raster | grep rw | sort --overwrite . gdal . (EXIT STATUS) 0 ( ). (EXAMPLES) : (TRI) DTED0. $ gdal raster tri n43.dt0 out.tif --overwrite (AUTHORS) Even Rouault (COPYRIGHT) 1998-2026 August 18, 2026 GDAL-RASTER-TRI(1)