2D Domain GIS Layers
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2D Boundaries and 2D/1D Links
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2d_bc_
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Mandatory layer(s) defining the locations of 2D boundaries and 2D/1D dynamic links.
Cell code values may also be defined in this layer.
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3.17
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2D Cell Codes
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2d_code_
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Optional GIS layers containing objects, typically polygons, that define the cell codes.
Note: The preferred approach is to define cell codes using the 2d_bc layer (see Read MI Code with the BC option).
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3.10
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2D Flow Constrictions
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2d_fc_
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Optional layers defining the adjustment of 2D cells to model bridges, box culverts, etc.
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3.14
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Gauge Level Output Location
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2d_glo_
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Optional layer defining the location of the gauge for output based on water level rather than time intervals. See Read MI GLO.
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2D Grid
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2d_grd_
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Optional layers used to define the 2D grid or mesh. Now primarily used as a quality control check file (in earlier versions was a mandatory input). Contains information on the 2D cell: reference, code, material, Manning’s n and other information.
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3.10
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2D Initial Water Levels
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2d_iwl_
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Optional layer(s) defining the spatial variation in 2D domain initial water levels at the start of the model simulation.
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3.16
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2D Grid Location
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2d_loc_
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GIS layer defining the origin and orientation of the 2D grid. This layer is optional, however, is the preferred method for geographically locating 2D domains.
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3.10
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2D Longitudinal Profile Output Locations
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2d_lp_
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Optional layer(s) defining the locations longitudinal profile output from the 2D model domain
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3.15
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2D Land-Use (Materials) Categories
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2d_mat_
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Layers to define or change the land-use (material) types on a cell-by-cell basis.
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3.10
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2D Plot (Time-Series) Output Locations
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2d_po_
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Optional layer(s) defining the locations and types of time-series output from the 2D domains.
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3.15
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2D Source over Area
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2d_sa_
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Optional layer(s) defining the polygons of sub-catchment areas for applying a source (flow) directly onto 2D domains.
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3.17
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Elevation Lines (Breaklines)
(Ridges and Gullies)
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2d_zln_
2d_zlr_
2d_zlg_
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Optional 2D or 3D breaklines defining the crest of ridges (eg. levees, embankments) or thalweg of gullies (eg. drains, creeks). Ridges and gullies can not occur in the same layer so 2d_zlr_ is often used for ridges and 2d_zlg_ for gullies.
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3.10
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2D Elevations over an area
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2d_za_
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Optional layer(s) that define areas (polygons) of elevations at a constant height.
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3.10
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2D Elevations as points
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2d_zpt_
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Layer(s) that define the elevations at the 2D cells mid-sides, corners and centres.
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3.10
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