QGIS SWMM Convert ESTRY Layers To SWMM: Difference between revisions
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Inlets are always specified as using the Sag option because this is how inlets are used with ESTRY. It may be appropriate to modify SWMM inlets to use the Grade option. This requires the user to provide additional information such as street cross-section and longitudinal slopes.<br>
Some model parameters are defaulted during the process. For example, default street information is created. SWMM pits (inlets) require street information even though this information is not used with the inlets as converted because they are set to use the Sag method. Pits (inlets) use the external inlet usage approach where inlet usage is written to a separate layer that is included in TUFLOW using the command '<font color="blue"><tt>Read GIS SWMM Inlet Usage</tt></font>'.<br>
The SWMM model parameters may need to be modified after the conversion process for the model to run stably with low mass errors.<br>
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