{"name": "Relative Elevation Model (REM)", "package_name": "rem_plugin", "description": "Generates a Relative Elevation Model (REM): a raster showing how high each cell sits above the nearest river channel, revealing floodplain features such as levees, palaeochannels and terraces. Includes a semi-automatic river line extractor.", "about": "This plugin adds two Processing tools under \"REM Tools\":\n\n1. Create River Line from DEM (semi-automatic): extracts a river/channel network from a DEM using fill sinks, flow accumulation, thresholding and thinning. The result is meant to be inspected and cleaned by hand before use. For very flat areas (e.g. the Sudd) a hand-drawn line is recommended instead.\n\n2. Generate Relative Elevation Model (REM): samples DEM elevation along the river line, interpolates a smooth river surface (IDW), and subtracts it from the DEM to produce the REM.\n\nIMPORTANT: the DEM and the river line MUST share the same projected (metre-based) coordinate reference system. Geographic (degree-based) data will not work correctly.\n\nThe output REM is loaded with a bundled 0-10 m colour ramp suited to floodplain mapping.", "homepage": "https://github.com/ishibaro/rem-plugin", "repository": "https://github.com/ishibaro/rem-plugin", "tracker": "https://github.com/ishibaro/rem-plugin/issues", "author": "Ishiba RO", "tags": ["raster", "geomorphology", "hydrology", "dem", "elevation", "archaeology", "river", "floodplain", "relative elevation model", "rem"], "downloads": 241, "latest_version": "1.0.0", "versions": [{"version": "1.0.0", "experimental": false, "qgis_min": "3.16.0", "qgis_max": "3.99.0", "downloads": 241, "uploaded_by": "ihb8468", "upload_datetime": "2026-06-17T10:22:56.066374"}]}