• Turbidites and sandy debris flows. Which is more prevalent? (very geological)
• Gully features on continental slopes. What’s the forcing? (vast literature)
• Numerical modeling of turbidity currents. How relevant are recent model results?
• Modeling debris flows. How effective is a Bingham model?
• Low speed streaks. Are they an important mechanism for the production of turbulence? (possibly too specific)
• Large-eddy simulation (for natural flows). A possible savior, or yet another numerical dead-end? (vast literature, very mathematical)
• Sediment scavenging. What’s the importance of convective behavior? (possibly too specific – literature strongly to my own work)
• The log law. A nice approximation, or a boundary layer truism? (very mathematical)
• Shelf turbidites. Do they exist? (very geological)
• Gully features on Mars. Indicative of spring sapping and wet debris flows or are can they be explained otherwise? (vast literature)
• Roughness on Mars. Sediment movement help or hindrance?
• Do catastrophic sediment pulses to rivers diffuse or advect/translate?
• Downstream coarsening in upland watersheds. Does it exist? (possibly too specific)
• What is the net impact of forest roads on sediment delivery in upland (Cascadian) watersheds?