TUFLOW General Discussion: Difference between revisions
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== What should managers and reviewers look out for? ==
Evidence the modelling is being quality controlled using the tests such as cell size results convergence as explained in greater details in our <u>[https://www.tuflow.com/library/webinars/#nov2020_2d_cell_size 2D cell size webinar]</u>. For modelling that is to be used for providing more precise metrics (e.g. for building floor levels) ensure the software being used is at the more accurate end of the spectrum and a good quality data is being used. If calibration data or anecdotal evidence exists, calibration or checking of the model should be carried out to help reduce the modelling uncertainty.<br>
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== How to check the flow in 2D model is the same as the source? ==
A mass balance is a good check on the model, e.g. with no losses the catchment area times rainfall depth should be the volume of water being applied as flow boundary to the hydraulic model. This is particularly important if using separate hydrologic and hydraulic models. If a sub catchment is missed or double counted then both the hydraulic model and the hydrologic model may show 0% mass error, but due to check for any errors a total volume check (Total in from source model - Total out from hydraulic model = Change in hydraulic model volume) should be carried out. In TUFLOW Plot Output lines can be included downstream of inflows to compare the hydraulic model inflow against the hydrology model results. For more information see our <u>[https://www.tuflow.com/library/webinars/#oct2022_quality_control Quality Control webinar]</u>.<br>
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