Breaching stop banks
Breaching stop-bank can dramatically increase local flooding or change the dynamics of floods. While BG_Flood does not have a morphoodynamics model, it has internal process that can approximate a breach (or many of them). This was critical when trying to replicate the exTC Gabrielle flood in Heretaunga Plains where more than 10 stop-bank breaches occurred.
How
BG_Flood can deform the ground level at anytime using the deform parameter. This was initially designed for tsunami generation from co-seismic seafloor deformation. However, it can be applied to any change on the landscape.
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deforminput needs to be the change to landscape to be applied. -
deformgridded input can be any size and can be much smaller than the model domain. you could have a separate grid for each breach -
You can control the start time of the break and the duration of the breach formation with the two parameter attached to deform