open TELEMAC-MASCARET The mathematically superior suite of solvers

Dear TELEMAC Team, I am conducting a flood evolution study requiring a ​​completely dry initial riverbed​​. However, Telemac mandates an initial water depth input, and omitting it triggers errors. Despite assigning fixed discharges to three boundaries, setting even zero depth contradicts the dry-bed condition. ​​Could you kindly advise​​ how to resolve this conflict? Any guidance on parameters or methods to simulate truly dry initial states would be ​​immensely appreciated​​. Thank you for your support!