WMS:Area Property Coverage: Difference between revisions

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* [[WMS:1D-HYD Cross-section Coverage Type|1D-Hydraulic Cross-section Coverage]]
* [[WMS:1D-HYD Cross-section Coverage Type|1D-Hydraulic Cross-section Coverage]]
* [[WMS:Extract Cross Sections|Cutting Cross-sections]]
* [[WMS:Extract Cross Sections|Cutting Cross-sections]]
* [[WMS:Hydraulic Modeling Introduction|Hydraulic Modeling]]
* [[WMS:Hydraulic Modeling|Hydraulic Modeling]]
* [[WMS:Import and Export GIS Files#Export GIS File|Export GIS File]]
* [[WMS:Import and Export GIS Files#Export GIS File|Export GIS File]]
* [[WMS:Extract Cross Sections|Extracting Cross Sections]]
* [[WMS:Extract Cross Sections|Extracting Cross Sections]]

Revision as of 15:51, 28 August 2014

An area property coverage is very similar to a land use coverage or a soil coverage (and often are defined by converting one of these coverages to an area property) and is used to map Manning's roughness values to the cross-sections of a hydraulic model. Each polygon in the area property coverage is assigned a material ID. Material IDs are then mapped as line properties for the cross-sections when cutting from a digital terrain model. As part of the hydraulic model the material IDs are assigned unique Manning's roughness values (in the case of HEC-RAS), or other similar properties that may used in other models.

In conjunction with the Area Property coverage Materials should be created that correspond to the different unique IDs that are assigned to the polygons. Materials can be given a name and a color for display.

Material Properties

WMS uses an Area Property coverage to map the roughness line properties to segments of a cross section. The cross sections store the material property ID's and in order for WMS to correctly associate a material ID with an actual roughness they must be defined using the Material Properties dialog.


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