CAPE FEAR RIVER BASIN STUDY
PRELIMINARY OUTLINE
- Project History from Inception Through Selection of Study Team
- Introduction to Study Team & Their Individual Responsibilities
II. GENERAL SITE DATA
- Population
- Land Use (Taken From GIS Coverages & Land Use Plans)
- Historical
- Existing
- Future
- Climate
- Precipitation
- Evaporation
- Hydrology and Drainage Features
- Topography
- General (Discussion)
- Digital Elevation Models (DEMs)
- SCS Soil Mapping
- Major Streams and Tributaries Within Cape Fear River Basin
- USGS Gage Records
- Historical Floods
- Historical Droughts
- Reservoirs
- Lake Jordan
- Lake Randleman
- Other Impoundments
III. SURFACE WATER WITHDRAWALS & DISCHARGES WITHIN CAPE FEAR RIVER
BASIN
- Data Sources
- Withdrawals
- Discharges
- Surface Water Withdrawals
- Public Supply Use
- IBTs
- Breakdown by consumptive use categories
- System losses
- Returns to water body
- Domestic Uses
- Commercial Uses
- Industrial Uses
- Mining Uses
- Livestock Uses
- Irrigation Uses
- Thermoelectric Uses
- Surface Water Discharges
- NPDES Discharges
- Other Point Source Discharges
- Non-point Source Discharges (Agricultural runoff, etc.)
- Conclusions and Need for Model to Account for all Water Resources within the Cape Fear
River Basin
IV. MODEL DEVELOPMENT
- MIKE BASIN Overview
- MIKE BASIN Code Modifications Required
- Low Flow Targets
- Output Compatible with EPA Water Quality Models
- Stream Flow Profiles (including 7Q10 conditions)
- Drought Management and Forecasting
- Enhanced GUI
- Agricultural Consumptive Use
- Flood Routing/Flood Release
- Incorporate Specific Drought Management Policies
- Develop More Detailed Model Documentation
- Manuals
- On-line Help System
- Wizard/Naviagator
- Model Setup and Required Input
- Node Locations
- USGS Gages
- Withdrawal Sites
- Discharge Sites
- Other Sites of Interest
- Computations Required for Each Node
- Drainage Areas (GIS Coverages & DEMs)
- Naturalized Flow
- River Network (Branches)
- Routing Coefficients
- Other Coefficients (?)
- Reservoirs
- Geometric Relationships
- Precipitation & Evaporation
- Operational Polices & User Allocation Accounts
V. MODEL CALIBRATION/VERIFICATION
- Selection of Calibration/Verification Period
- Model Run & Discussion of Input Parameter Manipulation to Match Measurements
VI. FUTURE CONDITIONS
- Extrapolation of USGS Gage Records
- Estimate Urbanization Trends
- Compute SCS Curve Number for Each Year Using Yearly Runoff Volumes, Drainage Areas, and
Precipitation
- Analyze Trend of SCS CNs
- Cross-reference with Land Use Plans to Ensure Reasonableness
- With New CNs Recreate a Wet, Dry, and Normal Year of River Q with Wettest, Driest,
and Normal Precipitation Year (Create for as Many Years As Desired or Until Full
Reasonable Build-out Reached)
- Adjustment of Other Model Input Parameters Related to Discharge Change
- Extrapolation of Water Withdrawals and Point & Non-point Discharges based Historical
Trends
- Model Run
- Results and Conclusions
VII. DROUGHT CONDITIONS
- Computation of 7Q10 Statistics (Gaged & Extrapolated to Ungaged by Drainage Area
Ratios)
- 7Q10 Run with Current Allocations
- 7Q10 Run with Current Approved Future Allocations
- 7Q10 Run with Other Allocations Requested by NCDWR
- Results and Conclusions
VIII. CONCLUSIONS AND FINAL RECOMMENDATIONS
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