Field needs

Field Needs Identified in Workshop, Las Vegas, 6 May 2003

Urban Flood / Expedient Methods

• Volume – Frequency relationships for arid areas
• Vegetation impacts on Manning’s “n”, vegetation loss during floods
• Demo levee inspection / levee database / GIS methods to identify potential failure areas
• Precipitation better estimates from SAT, radar, etc
• Basic geomorphic analysis guidance (for FDR)
• Channel loss during routing (net lateral inflow)
• Design guidance for constructing wetlands for FDR and pollutant mitigation
• Guidance for use of FLO2D for overbank vegetation areas and alluvial fans

Channel Restoration

• Nutrient reduction via sediment control
• Resistance due to riparian vegetation.
• Instream and streambank stabilization and habitat improvement measures.
• Riparian restoration strategies and techniques.
• Channel design (low-flow, multi-stage).
• Floodplain design and channel/floodplain connectivity

Geomorphology and Sediment Processes

• Alluvial Fan evolution and processes
• Sand and gravel mining—impacts, management, and by-products
• Modeling—simple from complex
• Guidance and processes for range of flows experiences in arid regions
• Loss of hydraulic connectivity between channel and floodplain
• Debris flow forensics