open TELEMAC-MASCARET The mathematically superior suite of solvers

Hello,

I have a small question concerning the Definition of the DYKE Breach:

what means the Keyword "# Width of Polygon defining the breaches" in the user manual example for Dyke Breach?

Isn't it the same like "# Bandwidth of the polyline defining the breach" ??

Thanks a lot

Concerning this I have one more question:

In the current release, 3 types of breaching process are available:
 at a given time,
 when the water level above the dike reaches a given value,
 when the water level at a given point reaches a certain value.

What means the second option?

Thank you