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South Platte Decision Support System

South Platte Decision Support System. Colorado Water Conservation Board and Division of Water Resources. South Platte DSS. Division 1 except Republican (WD 65) and North Platte (WD 47). North Platte. South Platte. Republican River. DSS Approach. SPDSS Major Components.

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South Platte Decision Support System

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  1. South Platte Decision Support System Colorado Water Conservation Board and Division of Water Resources

  2. South Platte DSS Division 1 except Republican (WD 65) and North Platte (WD 47) North Platte South Platte Republican River

  3. DSS Approach

  4. SPDSS Major Components • Data - Tabular and Maps • New Data - Irrigated Lands, stream gages, aquifer data, and observation wells • Tools - SW, GW, CU • User Involvement • Documentation & Product Distribution

  5. Stations Streamflow Climate (temp, ppt., evap.) Structures Diversions Reservoirs Instream Flows Water Rights Transaction Net Ground Water Water Levels Pumping Tests Calls Tributary Mainstem Other Agricultural Statistics Crop Growth Coefficients Tabular Data

  6. Tabular DataInternet (WWW)

  7. Tabular DataStateView

  8. Basemap Hydrology Roads Cities and Towns Public Land Survey (T-R-S) Stations Diversions Reservoirs Instream Flows Climate Irrigated Acreage Water Source Crop Type Irrigation Method Other Average precipitation Average evaporation Canals Drains Spatial (Map) Data

  9. Spatial Data Typical Results Base Map Drainage Area, Rivers, Water Districts, Counties, Highways, etc.

  10. Spatial DataIrrigated Acreage Mapping Irrigated Area, Crop Type, Irrigation Method, Water Supply

  11. Consumptive UseStateCU

  12. StateCU Features SoilData Supplemental Sources Irrigated Acreage and Crop Type Climate Data Locally Calibrated Blaney-Criddle Crop Coefficients Surface Water Supply Data Ditch Efficiencies Irrigation Method

  13. StateCU Typical ResultsCU, Shortage and IWR

  14. StateCU Typical ResultsCU by Water Supply (SW and GW)

  15. Colorado’s Ground Water Model Modflow (USGS)

  16. Modflow Features • Geology • Aquifer Parameters • Pumping • Recharge • Boundary Conditions • Streamflows and Diversions • Springs • Drains • Evapotranspiration • Subirrigation

  17. Modflow Typical ResultsStorage Changes

  18. Modflow Typical ResultsWater Levels

  19. Modflow Typical ResultsProposed Pumping Impact

  20. Colorado’s Water Resources Planning Model StateMod

  21. StateMod Major Features • Network System • Monthly or Daily Time Step • Prior Appropriation Doctrine • Structure Types • Diversions, Reservoirs, • Instream Flows, Wells & • Plans • Operational Rules • Complex water operations • Graphical User Interface

  22. StateMod Major Features (cont.....) • Creates Base or Natural Flows • Efficient Solution Method • Direct Solution Algorithm • Modified Direct Solution Algorithm • Variable Efficiency • Soil Moisture Accounting • Call Reporting • Plan Accounting

  23. StateMod Typical ResultsStreamflow with and without Project

  24. StateMod Typical ResultsCompact Delivery Vs Compact Call

  25. SPDSSUser Involvement • Feasibility Study • Advisory Committee Meetings • Peer Review Meetings • Consumptive Use • Ground Water • Surface Water • Irrigated Acreage Mapping

  26. Product Distribution WWW or CD Internet (WWW) Compact Disk (CD)

  27. More about SPDSS • Web Site • http://cdss.state.co.us • CWCB • Ray Alvarado (303) 866 - 3517 • ray.alvarado@state.co.us • DWR • Ray Bennett (303) 866 - 3585 • ray.bennett@state.co.us

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