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[[File:DelineatedDEM.png|thumb|300 px|Delineated DEM]] One program that has been developed for delineation on a DEM is the [[WMS:TOPAZ|TOPAZ]] program. A special version of TOPAZ has been cre

==Overview of the MODRAT Training Course in Los Angeles, California== |+'''Segment 1: MODRAT Course Overview'''

...age module menus, or in the ''Feature Objects'' Map module menu. If a TIN, DEM, or map data are not present, areas and slopes must be entered interactivel * [[WMS:TR-20|TR20 Overview]]

...set as the active module. To perform drainage computations on a TIN or a DEM, change the active module to the Drainage module by selecting the Drainage ...ital elevation file using this option will open an elevation grid as a WMS DEM. Right-clicking on a TIN allows selecting any of the TIN processing or visu

[[Image:WMS DEM Trim by Elevation.png|thumb|225 px|''DEM Trim by Elevation'' dialog]] ...draulic model so it is convenient to be able to trim away the parts of the DEM that are not needed.

...Data module consists of tools, menus ([[WMS:TIN Menu|TIN,]] [[WMS:DEM Menu|DEM,]] and [[WMS:Overview_of_Floodplain_Delineation#Flood_Menu|Flood]]), and th * [[WMS:DEM Guidelines|DEMs]]

...r use in basin delineation with DEMs. However, TOPAZ is capable of further DEM elevation processing, including raster smoothing, basin and stream delineat ...Modeling Wizard'']], the '''Compute TOPAZ''' command will save the current DEM elevations to a TOPAZ formatted input file along with a TOPAZ control file

...ines a relationship between elevation/area/volume and is computed from the DEM cell elevations. These three curves are stored in the storage list used by * [[WMS:Storage Capacity Curves|Storage Capacity Curves-Overview]]

:[[WMS:Overview of Basin Data Equations|Overview of Basin Data Equations]] :[[WMS:DEM Guidelines|DEM Guidelines]]

...this edit field. If having delineated a watershed from feature objects, a DEM, or a TIN, the drainage area can be computed and will automatically be upda ...n is only available when having computed basin data from either a TIN or a DEM).

...ital elevation file using this option will open an elevation grid as a WMS DEM. *'''Open Digital Elevation File(s)''': Brings up the ''Select DEM File(s)'' dialog.

==Properties Window Overview== #Selected DEM cell properties

#[[WMS:DEM Guidelines|Digital Elevation Models (DEMs) or Gridded Elevation Sets]] * [[WMS:Louisiana DOTD Modeling Overview|Louisiana DOTD Modeling]]

...roughness. Since length and slope (providing there is a background TIN or DEM) are easily determined from arcs, the time computation coverage provides a If having developed a watershed model from a TIN or DEM, it is possible to have WMS automatically create flow path arcs from select

...age module menus, or in the ''Feature Objects'' Map module menu. If a TIN, DEM, or map data are not present, areas and slopes must be entered interactivel ...may be computed by selecting the Compute Basin Data command in the TIN or DEM Drainage module menus, or in the Feature Objects Map module menu.

...or GIS. This length information is combined with the elevation data from a DEM or topographic map to determine the slope. * [[WMS:MODRAT|Overview of MODRAT]]

...etric parameters. Enter the value manually if not having delineated from a DEM, drainage coverage, or TIN. #Variable values derived from a DEM or Drainage coverage will automatically be placed in the appropriate edit

...on the basin [[WMS:Delineation with DEMs|data computed by WMS when using a DEM]] or [[WMS:Watershed Delineation with TINs|TIN ]]for basin delineation. Man ...ach arc (length and slope are automatically determined from the arc when a DEM or TIN is present) and the sum of the arc travel times within a basin used

...ctive at any given time. However, the data associated with a module (ex. a DEM or TIN in the Terrain module) is preserved when switching to a different mo By changing the default [[WMS:Project Explorer Overview|preferences]] for the Project Explorer the module can also be changed each

* [[WMS:HSPF|Overview of HSPF]] * [[WMS:DEM Guidelines|Basin Delineation from DEMs]]