RiverTools 5.0 Capabilities

General Features

• Web app that runs in your browser
• Nothing to install
• Easy access to latest DEM products on OpenTopography.org
• No mosaicking needed
• User datasets are stored in the cloud
• Terrain analysis with an emphasis on hydrology
• Many tools for extraction, visualization, & analysis
• Jobs run in the cloud, even after logout
• Available via a multi-tiered subscription model
• Algorithms can handle very large DEMs
• Friendly, point-and-click user interface
• Stand-alone application
• Great toolkit for teaching & research

Visualization Tools

• Color Shaded Relief
• Contour Plots (line or filled)
• Density Plots
• Color Shaded Aspect
• River Network Maps
• Points and Channel Sources
• Masked Regions
• Functions (e.g time series or saved profiles)
• Animated Grid Sequences (time-indexed grid stacks)
• ESRI Shapefiles
• Map projection of any Display image
• Color Tool, with many color tables and palettes
• Optional color bar
• Axes for raster plots: normal, zebra, or none

Interactive Window Tools

• Interact with Display windows at full resolution.
• Line Profile (display grid values along transects)
• Channel Profile (display grid values along streamlines)
• Value Zoom (view grid values, coordinates, etc.)
• Vector Zoom (contours, cell boundaries and D8 flow vectors)
• Vector Zoom MF (contours, cell boundaries and continuous angle flow vectors)
• Scroll Zoom, Box Zoom, Pan, and Reset tools
• Save Profile tool
• Save Image tool
• Clip DEM tool (clip DEM to a smaller bounding box)
• Tools link automatically to track/update together.

Extensive HTML Help System

• Context-sensitive Help button in every dialog
• Illustrated, hyperlinked Tutorials
• Complete User's Guide
• Hyperlinked Glossary of Terms
• Helpful, informative error messages and warnings

Ability to Download DEM Products from OpenTopography.org

Global DEMs

• SRTMGL3 (90m)
• SRTMGL1 (30m)
• SRTMGL1 (ellipsoidal 30m)
• AW3D30 (ALOS World 3D 30m)
• AW3D30 (ALOS World 3D Ellips., 30m)
• SRTM15 (Global Bathy. V2.1 500m)
• NASADEM (Global DEM)
• Copernicus Global DSM 30m
• Copernicus Global DSM 90m
• EU_DTM 30m
• GEDI_L3 (DTM 1000m)
• GEBCOIceTopo (Global Bathy. 500m)
• GEBCOSubIceTopo (Global Bathy. 500m)
• CA_MRDEM_DSM (30m)
• CA_MRDEM_DTM (30m)

USA DEMs

• USGS 3DEP (30m)
• USGS 3DEP (10m)

Flow Grid and River Network Extraction

• D8, D-Infinity and Mass Flux flow grid methods
• Depression filling to resolve flow direction in depressions
• New "valley centering" method to resolve flow direction in flats
• Multiple flow grid "pruning" methods
• Export river channels to Shapefiles with 20 optional attributes
• Graphical basin outlet selection tool

Derived Grids

• Flow direction grids (D8, D-infinity, Mass Flux Method)
• Total and specific contributing area (D8, D-infinity, Mass Flux Method)
• Channel slope (D8, D-infinity, Mass Flux Method)
• Flow distance (to edge of DEM or a mask)
• Longest channel length
• Plan, profile, tangential, streamline, mean and Gaussian curvature, etc.
• Basin relief & Horton-Strahler order
• Pfafstetter basin codes
• Shortwave radiation calculator creates grid stack
• Topographic Index
• Profile-smoothing tool
• Grid Calculator (compute new grids as mathematical functions of others)
• Tool to monitor status of longer-running jobs

Watershed Delineation and Feature Extraction

• Basin or subbasin boundaries (RiverTools Vector or shapefile format)
• Watershed segmentation
• Analyze basins by Horton order
• Export basin boundaries to Shapefiles with 36 optional attributes
• General tools for automatic feature masking (e.g lakes, land/sea)
• Basin shape analysis tools

Ellipsoids and Map Projections

• 56 Earth ellipsoid models, plus Custom
• Best-known ellipsoids for other planets and moons
• 34 Map Projections
• Reproject a Geographic DEM to any supported map projection
• All area, length and slope calculations account for latitude-dependence when using Geographic DEMs

Analysis and Plotting Tools

• Data Summary Table for Strahler Streams
• Generalized Horton Plots
• Empirical Distributions (CDFs) for all Strahler stream attributes
• X vs. Y plots of stream and link attributes
• Smart Histograms and bar plots
• Side tributary matrix (to analyze self-similarity)
• Link Concentration Functions
• Width Functions
• Hypsometric (area-altitude) curves (4 types)
• Area-distance curves
• Longitudinal profiles (elevation and other grids, curve fitting)

DEM and Grid Preparation

• DEM clipping tool (extract georeferenced DEM for a subregion)
• Reproject Geographic DEMs to any supported map projection
• Convert D8 flow grids between ARC, RiverTools, TOPAZ, etc.
• Convert size, data type, units, etc. of grids
• Merge Files (merge RTV, RTM, text and RTG-to-RTS)
• Replace values (e.g. NaN and nodata values)

Vector File Format Support

• Overlay vector data in multi-layer plots (points, lines, polygons, etc.)
• Create and Display RiverTools Vector (RTV) format files
• Export RiverTools Vector (RTV) format to Shapefiles
• Export RiverTools Mask (RTM) format to Shapefiles
• ESRI Shapefiles (read, write, display, and show attribute table)

Sample DEM Data Included

All subscription tiers include a DEM for Beaver Creek, Kentucky with a spatial resolution of 1 arcsecond (roughly 30 meters). This DEM is for a region in the Appalachian Plateau of the USA. DEMs for other river basins can easily be downloaded and the bounding boxes for many basins is provided.

RiverTools is a trademark of Rivix, LLC.