WMS:Delineate Watershed: Difference between revisions

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== Help ==
== Help ==
*'''Stream threshold value''' – This value is used to modify the stream density.  Lower values will cause the streams to be more dense while higher values will create fewer streams in the completed model.
*''Stream threshold value'' – This value is used to modify the stream density.  Lower values will cause the streams to be denser while higher values will create fewer streams in the completed model.
*'''Apply to Display''' – Select this button to apply the stream threshold value entered to the display.
*''Apply to Display'' – Select this button to apply the stream threshold value entered to the display.
*'''Create Tc Coverage''' – If this toggle is selected, a Time Computation coverage containing an arc with the longest flow path is created after delineating the watershed and sub-basins.
*''Create Tc Coverage'' – If this toggle is selected, a Time Computation coverage containing an arc with the longest flow path is created after delineating the watershed and sub-basins.
*'''Units''' – This button is used to define the model and computation coordinates and units.  Turn on the option to create a Tc coverage and change which data is computed by selecting the '''Drain Data Compute Opts...''' button in the ''Units'' dialog.
*''Units'' – This button is used to define the model and computation coordinates and units.  Turn on the option to create a Tc coverage and change which data is computed by selecting the '''Drain Data Compute Opts...''' button in the ''Units'' dialog.
*'''Sub-divide Watershed''' – This button subdivides the watershed into sub-basins based on the maximum sub-basin area entered.
*''Sub-divide Watershed'' – This button subdivides the watershed into sub-basins based on the maximum sub-basin area entered.
*'''Delineate Watershed''' – This button delineates the watershed and computes each sub-basin's data based on the selected watershed delineation parameters.
*''Delineate Watershed'' – This button delineates the watershed and computes each sub-basin's data based on the selected watershed delineation parameters.


After delineating a watershed, it is possible to [[WMS:DEM Basins|manually edit the extents of the watershed.]]
After delineating a watershed, it is possible to [[WMS:DEM Basins|manually edit the extents of the watershed.]]

Revision as of 18:53, 4 May 2020

HY8 Modeling Wizard showing the Delineate Watershed step

The Delineate Watershed step is used to delineate a watershed.

Help

  • Stream threshold value – This value is used to modify the stream density. Lower values will cause the streams to be denser while higher values will create fewer streams in the completed model.
  • Apply to Display – Select this button to apply the stream threshold value entered to the display.
  • Create Tc Coverage – If this toggle is selected, a Time Computation coverage containing an arc with the longest flow path is created after delineating the watershed and sub-basins.
  • Units – This button is used to define the model and computation coordinates and units. Turn on the option to create a Tc coverage and change which data is computed by selecting the Drain Data Compute Opts... button in the Units dialog.
  • Sub-divide Watershed – This button subdivides the watershed into sub-basins based on the maximum sub-basin area entered.
  • Delineate Watershed – This button delineates the watershed and computes each sub-basin's data based on the selected watershed delineation parameters.

After delineating a watershed, it is possible to manually edit the extents of the watershed.


WMS Hydrologic Modeling Wizard

Hydrologic Modeling Wizard Steps: Project Filename · Define Project Bounds · Watershed Data · Download Data (Web Service Client) · Read Data (Catalog) · Compute Flow Directions and Flow Accumulations · Choose Outlet Locations · Delineate Watershed · Select Model · Define and Smooth Streams · Create 2D Grid · Job Control · Define Land Use and Soil Data · Hydrologic Computations · Define Precipitation · Clean Up Model · Run Hydrologic Model

WMS HY8 Modeling Wizard

HY8 Modeling Wizard Steps: Project Filename · Define Project Bounds · Watershed Data · Download Data (Web Service Client) · Read Data (Catalog) · Define Culvert Roadway Data · Compute Flow Directions and Flow Accumulations · Choose Outlet Locations · Delineate Watershed · Select Model · Job Control · Define Land Use and Soil Data · Hydrologic Computations · Define Precipitation · Clean Up Model · Run Hydrologic Model · Crossing Discharge Data · Setup Tailwater Channel · Culvert and Site Data · Run Culvert Analysis · Define Flood Inundation Polygon · Storage Capacity Data · Define Upstream Channel · Delineate Inundated Area

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