Comparing CBP w/VAHydro Enhanced Flow Routing

[rburghol]

From Workplan:

Examine effect of enhanced management scenarios within VAhydro Compare CBP Phase 5.3.2 and VAHydro historic model runs in Roanoke River basin above Smith Mountain Lake. Identify changes due to enhanced reservoir management in VAHydro on model performance as compared to USGS gages.

Locations

• Roanoke River, Wayside Park (See: Appendix H.3: USGS Gage 02054530 vs. OR2_8130_7900)
  • Spring Hollow pump store
  • possible double-counting of withdrawal (w/d from river to reservoir, AND, w/d from reservoir by water system)
  • no flowby in river modeled, could lead to zero flows even if double counting not occuring
• Hyco Dam NC (optional). Included because we did some good investigation here, and if we have extra time, or someone is looking for ideas for a class project (hint, hint) it is a golden opportunity to see if we can alter the base HSPF, as well as build a cool VAHydro model.
  • Reservoir FTABLE copied from Jennings Randolph
  • Will this have any impact on our water supply work? If not, priority can be lowered. OWS will analyze water use here to determine.

Specific Analysis Roanoke, Wayside

• OR2_8130_7900
  • Compare 90-day low flow stats with tributaries -- what's happening here?
  • What are withdrawals in 8130? Export from withdrawal WDMs.
  • What units are the withdrawal WDM data in? Make sure we convert.
  • What are withdrawals in VAHydro?
  • Spring Hollow Reservoir from Roanoke River: ows-intake-dash-compliance/58884
  • Spring Hollow WTP from Reservoir: ows-intake-dash-compliance/60423