• Detailed 2D channel and floodplain modeling
• Combined 1D channel flow with 2D floodplain flow areas
• Combined 1D channel and overbank flow with 2D flow areas behind levees
• Simplified to detailed dam failure i.e., dam breach analyses
• Simplified to detailed levee failure i.e., levee breach analyses
• 1D flow that suddenly expands laterally into the floodplain overbank area
• Flow outside of well-defined single channel
• Interconnected or braided streams, meanders, loops
• Alluvial fans and estuaries
• And many other situations…