Hydrology

Delineates depressions in a digital elevation model.

Delineates closed elevations or mounds in a digital elevation model.

Corrects a DEM so elevation decreases continuously along rivers.

Identifies and extracts closed depressions from a digital elevation model.

Models filling, spilling, and merging of depressions in a DEM.

Interpolates a raster surface from contours, points, and topographic boundaries.

Breaches least-cost drainage paths through depressions in a DEM.

Opens a drainage outlet for single-cell pits in a DEM.

Adjusts the DEM by burning along a vector drainage network; supports depth and fade distance.

Adjusts the DEM based on stream channels and roads to represent crossings; supports intervention width.

Calculates the depth of each closed depression in a DEM.

Combines depression filling with DEM adjustment along the drainage network.

Fills depressions in a DEM to remove spurious sinks.

Fills DEM depressions using the Planchon and Darboux method to yield a continuously draining surface.

Fills depressions in a DEM using the Wang and Liu method.

Fills pits in a DEM to support drainage, runoff, or watershed analysis.

Levels the elevation of cells forming each lake.

Estimates potential impoundment sizes in a DEM.

Inserts dams into a digital elevation model.

Raises linear or polygonal barriers in a DEM.

Identifies closed depressions in a DEM and assigns them unique identifiers.

Statistically analyzes the distribution of depressions in a DEM.

Opens drainage paths and adjusts the DEM while respecting stream network topology.

Estimates storage in upslope depressions from a DEM.

Calculates the average slope along flowpaths from a digital elevation model.

Calculates the average upslope flowpath length from a digital elevation model.

Calculates flow accumulation using the D8 algorithm from a digital elevation model.

Propagates mass flux with D8 flow directions to characterize terrain drainage, runoff, or watersheds.

Generates D8 flow directions to characterize terrain drainage, runoff, or watersheds.

Calculates flow accumulation using the D-infinity (D∞) algorithm from a digital elevation model.

Propagates mass flux using D-infinity flow directions.

Generates D-infinity flow directions to characterize terrain drainage, runoff, or watersheds.

Calculates downslope flowpath length from a digital elevation model.

Calculates flow accumulation by distributing flow among neighbors (FD8) from a digital elevation model.

Generates FD8 flow directions to characterize terrain drainage, runoff, or watersheds.

Calculates flow accumulation applying a full hydrologic workflow to a digital elevation model.

Calculates the difference between flowpath lengths from a digital elevation model.

Calculates the maximum upslope flowpath length from a digital elevation model.

Propagates the maximum value from upslope cells.

Calculates flow accumulation with the MD-infinity algorithm from a digital elevation model.

Calculates flow directions with minimal dispersion from a digital elevation model.

Counts neighbors draining into each cell to characterize terrain drainage, runoff, or watersheds.

Calculates flow accumulation with the Qin algorithm from a digital elevation model.

Calculates flow accumulation with the Quinn algorithm from a digital elevation model.

Calculates flow accumulation using random-direction Rho8 from a digital elevation model.

Generates stochastic flow directions using the Rho8 algorithm.

Traces descending flowpaths to characterize terrain drainage, runoff, or watersheds.

Estimates the relative depth from each cell to the water table based on topography and the drainage network.

Calculates hydrologic distance to the outlet from a digital elevation model.

Calculates downslope distance from each cell to the nearest stream from a digital elevation model.

Calculates a downslope slope index from a digital elevation model.

Identifies cells affected by flows entering from the grid edge.

Expresses elevation relative to each watershed's minimum and maximum.

Calculates the elevation difference between each cell and its receiving stream from a digital elevation model.

Calculates elevation above streams using Euclidean distance from a digital elevation model.

Identifies cells without a flow direction to characterize terrain drainage, runoff, or watersheds.

Identifies areas where D8 directions indicate parallel flow and outputs a diagnostic raster.

Measures terrain hydrologic connectivity to characterize drainage, runoff, or watersheds.

Calculates a relative stream power index from a digital elevation model.

Calculates a sediment transport capacity index from a digital elevation model.

Calculates a topographic wetness index from a digital elevation model.

Computes for each stream cell the distance to the farthest upstream channel head.

Identifies the main stem of a stream network to characterize terrain drainage, runoff, or basins.

Computes the cumulative length of upstream channels from a digital elevation model.

Extracts a longitudinal profile along a drainage network.

Extracts longitudinal profiles from specified points to characterize terrain drainage, runoff, or basins.

Extracts a stream network from flow accumulation using a threshold.

Identifies candidate valley-bottom cells in a DEM from local topography and generates a valley raster.

Removes insignificant branches from a vector drainage network.

Converts a raster stream network into vector lines.

Rasterizes a vector stream network for use with a DEM.

Removes stream segments shorter than a defined threshold.

Repairs connections and topological errors in a vector drainage network.

Extracts centerlines of rivers or fluvial corridors.

Computes hierarchical Hack stream order from a digital elevation model.

Computes Horton bifurcation, length, and area ratios from a digital elevation model.

Computes Horton order per segment using the stream network and D8 flow-direction raster, and classifies the ordered network.

Computes Shreve stream magnitude from a digital elevation model.

Assigns Strahler drainage order to basins.

Computes Strahler hierarchical stream order from a digital elevation model.

Classifies each stream segment by its position within the drainage network.

Assigns a unique identifier to each stream segment in the network.

Computes the length of each stream segment from a digital elevation model.

Computes the mean slope of each stream segment from the DEM.

Computes a continuous slope along the stream network.

Computes stream order from network topology.

Identifies tributaries in a stream network.

Analyzes connectivity and attributes of a vector drainage network.

Delineates drainage basins from flow directions.

Classifies streams by flood order.

Delineates hillslopes associated with a drainage network.

Divides a basin into subbasins of comparable size.

Snaps pour points to the nearest cell of highest accumulation.

Extracts the longest flowpath of each basin.

Computes maximum drainage branch length from a digital elevation model.

Snaps pour points to the drainage network.

Delineates subbasins upstream of pour points.

Separates nested basins into independent basins to characterize terrain drainage, runoff, or basins.

Delineates drainage basins from pour points.

Delineates basins from pour points encoded in a raster.