Calculating catchment area with divergent flow based on a regular grid
Computers & Geosciences
Numerical definition of drainage network and subcatchment areas from digital elevation models
Computers & Geosciences
An adaptive approach to selecting a flow-partition exponent for a multiple-flow-direction algorithm
International Journal of Geographical Information Science
Errors in river lengths derived from raster digital elevation models
Computers & Geosciences
A methodology for aligning raster flow direction data with photogrammetrically mapped hydrology
Computers & Geosciences
The effect of error in gridded digital elevation models on the estimation of topographic parameters
Environmental Modelling & Software
Environmental Modelling & Software
ArcMine: A GIS extension to support mine reclamation planning
Computers & Geosciences
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We developed a new algorithm, the Adaptive Stormwater Infrastructure (ASI) algorithm, to incorporate ancillary data sets related to stormwater infrastructure into the grid-based hydrologic analysis. The algorithm simultaneously considers the effects of the surface stormwater collector network (e.g., diversions, roadside ditches, and canals) and underground stormwater conveyance systems (e.g., waterway tunnels, collector pipes, and culverts). The surface drainage flows controlled by the surface runoff collector network are superimposed onto the flow directions derived from a DEM. After examining the connections between inlets and outfalls in the underground stormwater conveyance system, the flow accumulation and delineation of watersheds are calculated based on recursive computations. Application of the algorithm to the Sangdong tailings dam in Korea revealed superior performance to that of a conventional D8 single-flow algorithm in terms of providing reasonable hydrologic information on watersheds with stormwater infrastructure.