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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 prop Each polygon in the area property coverage is assigned a material ID. Material IDs are then mapped as line properties

...ials (Manning's roughness coefficients) to the cross section based on some type of aerial distinction (land use or soils) that may be available. The diagra ...ram of a 1D-Hydraulic Centerline coverage and a 1D-Hydraulic Cross Section coverage.]]

...item and selecting '''New Coverage''' command followed by using the ''New Coverage'' dialog.. These coverages can be used with most models and simulations. ...terline Coverage|1D Hyd Centerline Coverage]] – Used to identify the centerline in the hydraulic model.

#Cross sections can be interpolated along the centerline. #A centerline coverage can be created from annotated cross sections.

...objects could not be included in a single coverage since polygons within a coverage are not allowed to overlap. ...The visibility of a coverage is controlled using the check box next to the coverage in the Project Explorer.

For the new 1D Hydraulic Cross Section coverage, the cross section geometry is stored in a text database file on disk. When ...in a [[WMS:1D-HYD Cross Section Coverage Type|1D Hydraulic Cross Section]] coverage. After assigning the cross section, it also possible to enter the editor fo

...ent land use (roughness) types found in the floodplain. After building the coverage, define each polygon attribute by double-clicking on the polygon and assign * [[WMS:1D-HYD Centerline Coverage Type|1D-Hydraulic Centerline Coverage]]

...igital terrain model in order to determine the thalweg position (from the centerline arc) and the left and right bank points (from the bank arcs). ==Coverage Specific Right-Click Commands==

For the 1D Hydraulic Cross Section coverage and the TUFLOW 1D Cross Section coverage, the cross section geometry is stored in text database file on disk. When # When double-clicking on an arc in a 1D Hydraulic Cross Section coverage, it's possible to assign a cross section from a database. After assigning

:[[WMS:Coverage Overlays|Coverage Overlays]] :[[WMS:1D-HYD Centerline Coverage Type|1D-HYD Centerline]]

User defined cross sections are defined from a cross-section coverage and can be interpolated from a background TIN or DEM. ...ge exists the new scatter point will be created at the intersection of the centerline and cross section when selecting the '''Create Stage Point''' button. A se

*1D Hyd Centerline coverage with a defined centerline arc. *1D Hyd Cross Sections coverage with defined cross section arcs.

...and sewer pipes are created from upstream to downstream. Currently, this coverage only supports links and nodes for the [[WMS:SWMM|SWMM model]]. ...[WMS:Hydraulic Modeling#Hydraulic Schematic|hydraulic schematic]] from the coverage. After having done this, define model specific data on the hydraulic schem

The input required for a SMPDBK model is a stream centerline, cross sections, and information regarding the storage and failure of the d ==Centerline==

# Developing a 1D-Hydraulic Centerline coverage including the centerline and optional bank arcs. # An Area Property coverage can be used to map roughness values to line properties on the cross section

...on. This modified BC coverage has all the same geometry as the original BC coverage. All water levels (such as Exit-H with specified values) are increased by t ** The modified BC coverage is swapped into the floodway simulation.

...ion for ArcView®) a 1D-Hydraulic Centerline coverage, and 1D Cross Section Coverage will be created along with a new database where the cross section geometry ...e same folder as the data). In the ''Open'' window, change the ''Files of type:'' field at the bottom to ''All Files (*.*)''

** [[Coverages Tools|Coverage tools]] (Geometry generation/modification) *** Trim Coverage

[[Image:1D-CenterlineExample.png|thumb|right|Example cross sections with a centerline and bank arcs.]] ...rmine the thalweg position, or lowest point in the cross section (from the centerline arc), and the left and right bank points (from the bank arcs).

**Tool to [[SMS:Cross_Section_Notes#Trimming Cross Sections to Annotation Type|trim cross sections]]. *Updates to the floodway extraction command on 1D Hydraulic Centerline coverages