WMS:Quick Tour -HEC-1 - Time Area Curves

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Time area curves are used in both the Clark and Snyder synthetic unit hydrograph methods. WMS computes the flow distance from each point on a TIN and then uses the approximation that travel time is directly related to travel distance to automatically compute a time-area curve for each basin.

  • Distancecontours.jpg
  • Timearea.jpg


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WMS – Quick Tour
Overview:Getting Started   •   Layout   •   Modules   •   Tools   •   Macros   •   Properties Window   •   Help StripWMS.PNG
Modules:Background Images   •   Draped Images   •   Terrain Data   •   DEMs   •   Flow Direction Vectors  •   Flow Accumalation  •   Watershed Outlet   •   Basin Delineation  •   TINs   •   Conceptual Model   •   Creating the TIN  •   Outlet Point Creation   •   Basin Delineation Flow Paths   •   Coverages  •   Feature Object Data   •   Storing the DEM Delineation   •   Conceptual Model for TINs   •   Creating Watershed Models Directly   •   Land Use   •   Soil   •   GIS Data   •   GIS with ArcObjects   •   Adding GIS Data   •   Join Tables   •   Travel Time Computations   •   More Travel Time Computations   •   Channel Calculations   •   Cutting Cross Sections   •   Curb and Gutter Flow   •   Culvert Hydraulics
Models:HEC-1   •   HEC-1 Lag Time and TC  •   HEC-1 Curve Numbers  •   HEC-1 Thiessen Gage Weights  •   HEC-1 Storage Capacity Curves  •   HEC-1 Time Area Curves   •   HEC-1 Area Between Contours   •   TR-20   •   TR-20 Lag Time   •   TR-20 Curve Numbers   •   Rational   •   Ration IDF Curve   •   NSS   •   HSPF   •   More HSPF   •   LA County Hydrology   •   Maricopa County Hydrology   •   HEC-RAS   •   Storm Drain   •   Further Storm Drain
Functionalities:Floodplain Delineation   •   More Floodplain Delineation   •   Additional Floodplain Delineation   •   Detention Basin Analysis   •   Composite Curve Numbers   •   Post Processing   •   More Post Processing   •   Finding Data   •   Support
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