TUFLOW Remapping: Difference between revisions
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* Hazard categories are usually depended on both water depth and velocity, and it is not straight forward to interpolate a cell averaged velocity to sub-cell scale with varying water depth.
* Even if this can be done based on empirical relationship between depth and velocity, the obtained velocity is much less reliable than a actual output from a model with finer mesh.
Therefore, we highly recommend refining the mesh size directly a the location where user wants to obtain finer velocity or hazard output. The figure below shows the hazard output from the 2.5/5/10/20m model, and as can be seen the result is much smoother along the gully. <br>
[[File:SGS 02-20m ZAEM1.png|350px]]<br>
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