Tuflow and estry manual Version 3



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1D Domain GIS Layers







1D Boundaries

1d_bc_

Layer(s) defining the locations of 1D domain boundaries. Note: Any links to the 2D domain are automatically determined via the 2d_bc layer(s).

3.17

1D Initial Water Levels

1d_iwl_

Optional layer(s) defining the spatial variation in initial water levels at 1D nodes at the start of the model simulation.

3.16

1D Domain Network

1d_nwk_

Layer(s) that define the 1D or quasi 2D domain network of flowpaths (channels) and storage areas (nodes).

3.12

1D Tabular Input

1d_ta_
1d_xs_
1d_nz_
1d_bg_

Optional layer(s) that provide links to tabular data (eg. a cross-section’s X-Z values). Tabular data includes cross-sections (XZ and processed forms); storage surface area versus height at nodes (NA tables); and loss versus height coefficients at a structure (BG tables). Although, different table links can occur within the same layer, some modellers prefer to separate them and use prefixes such as those suggested to the left.

3.13.3

1D Water Level Lines for SMS Output

1d_wll_

Lines of horizontal water level (as judged by the modeller). These lines are used to generate 3D surfaces or water level, velocity and other output of 1D domains. This allows the combined viewing and animation of 2D and 1D domains together.

3.18



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