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HydroCAD provides several key features of TR-20, such as the unit-hydrograph runoff procedure, in a more user-friendly graphical format. HydroCAD also adds other capabilities that have no equivalent in TR-20, such as time-of-concentration calculations, curve-number lookup, outlet hydraulics, exfiltration calculations, pond storage calculations ...
TR-20 is a computer program for the simulation of runoff occurring from a single storm event. The program develops flood hydrographs from runoff and routes the flow through stream channels and reservoirs.
models that can be used in urban hydrology design: Computer Pro gram for Project Formulation-Hydrology (TR-20) (1) and Urban Hydrology for Small Watersheds (TR-55) (2).
WinTR-55 uses the TR-20 (NRCS 2002b) model for all of the hydrograph procedures: generation, channel routing, storage routing, and hydrograph summation. Figure 10 is a diagram showing the WinTR-55 model, its relationship to TR-20, and the files associated with the model. TR-55 System. TR-55 Windows. State Rainfall Data Help Text.
the hydrologic cycle. Hydrologic cycle is the process of transfer of moisture from the atmosphere to the earth in the form of precipitation, conveyance of the precipitated water by streams and rivers to oceans and lakes, and evaporation of water back to the atmosphere. Fig. (5.1) illustrates schematically the complete hydrologic cycle. Figure 5.1.
12 Μαΐ 2001 · The rewritten TR-20 model has a more physically based input philosophy than previous versions and is based on the approach in the AnnAGNPS (Annualized AGricultural Non-Point Source Pollution)...
The TR-20 Interface Module provides a complete graphical interface to the U.S. Soil Conservation Service TR-20 hydrologic analysis model. The WinTR-20 model is now included with the TR-20 interface in WMS 11.2 and later versions. Save and run WinTR-20 models, then read and visualize the results.
