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Flood Modeller Tutorial Module01 Provisional: Difference between revisions

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The main watercourse channel within the existing 2D model is not very well represented using the 5m 2D cell size. In parts, the watercourse is only 5-10m wide and the 5m cell size could be considered too coarse to accurately represent the watercourse topography.<br>
[[file:Poor_2d_rep.png|400px]]<br>Using a cell size that is coarse relative to the width of the watercourse channel may reduce the accuracy of the conveyance inwithin the channel. There are a number ofseveral options for improving the representation of the creek channel:
* decreaseDecrease the width of the 2D cells, either globally or by using Quadtree, and/or useapply sub-grid sampling, and or,.
* modelModel the channel as a 1D network, dynamically linked to the 2D domain (the floodplain).
In this module we will adopt the final approach of modelling the creek as 1D elements using Flood Modeller.
 
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