1. Coupled Model Exercise Exercise 3 George H. Leavesley, Research Hydrologist, USGS, Denver, CO

2. TOOL BOX MODELING VIEWS Research Model Developer Complex Detail Research Model Developer Complex Detail Application Model Developer Application Model Developer Model User Model User Resource Manager Resource Manager Policy Maker Condensed Analysis Policy Maker Condensed Analysis

3. LEVELS OF MODULAR DESIGN PROCESS PROCESS MODEL MODEL FULLY COUPLED MODELS FULLY COUPLED MODELS LOOSELY COUPLED MODELS LOOSELY COUPLED MODELS RESOURCE MANAGEMENT DECISION SUPPORT SYSTEMS RESOURCE MANAGEMENT DECISION SUPPORT SYSTEMS ANALYSIS AND SUPPORT TOOLS ANALYSIS AND SUPPORT TOOLS Single Purpose Multi-objective, Complex

5. CRITERIA AND RULES FOR GOOD MODULE DESIGN relate directly to real world components or processes relate directly to real world components or processes have input and output variables that are measurable values have input and output variables that are measurable values communicate solely via these input and output variables communicate solely via these input and output variables Modules should Reynolds J.F., and Acock, B., 1997, Modularity and genericness in plant and ecosystem models: Ecological Modeling 94, p 7-16

7. Model Building Tool - XMBUILD

8. LOOSELEY COUPLED MODELS Watershed Model Hydraulics Model Database Fish Model Data Management Interface (DMI) MMS Model Off-the-shelf Model

9. LOOSELEY COUPLED MODELS Watershed Model Hydraulics Model Fish Model PRMS Habitat Suitability Index Channel Geometry Analysis Program (CGAP)

10. OBJECT USER INTEFACE (OUI)

11. Other Model Integration Approaches U.S. U.S. BASINS (EPA) BASINS (EPA) FRAMES (DOE, NRC, DOD, EPA) FRAMES (DOE, NRC, DOD, EPA) DIAS (DOE) DIAS (DOE) XMS (WMS, GMS, SMS, … - EMS Inc.) XMS (WMS, GMS, SMS, … - EMS Inc.) OMS (USDA) OMS (USDA) International International HarmonIT (Europe) HarmonIT (Europe) Catchment Modeling Toolkit (Australia) Catchment Modeling Toolkit (Australia)

12. Exercise 3 Problems 1.0 MMS_PET 1.0 MMS_PET Process comparison Process comparison 2.0 MMS PRMS Daily Mode 2.0 MMS PRMS Daily Mode Watershed model evaluation Watershed model evaluation 3.0 MMS PRMS-HIS 3.0 MMS PRMS-HIS Coupled watershed-hydraulics-habitat model Coupled watershed-hydraulics-habitat model

13. Potential Evapotranspiration (potet) - Hamon - Jensen - Haise potet(HRU) = hamon_coef(mo) * dyl 2 * vdsat potet(HRU) = jh_coef(mo) * ------------------- -------- -- (tavf(HRU) - jh_coef_hru) * rin

14. PRMS

15. HRUs

16. LOOSELEY COUPLED MODELS Watershed Model Hydraulics Model Fish Model PRMS Habitat Suitability Index Channel Geometry Analysis Program (CGAP)

17. Channel Cross-section

18. Channel Characteristics

19. Q = A*V V = 1.486/n * R * S V = 1.486/n * R 2/3 * S 1/2 n is Mannings n R is hydraulic radius S is channel slope Basic Channel Hydraulics

20. Habitat Suitability Index – Velocity

21. Habitat Suitability Index - Depth

22. WUA =  ( velocity_hsi * depth_hsi * x-sect_width * 100.) Weighted Usable Area (WSU)

23. MORE INFORMATION http://wwwbrr.cr.usgs.gov/mms http://wwwbrr.cr.usgs.gov/mms http://wwwbrr.cr.usgs.gov/weasel http://wwwbrr.cr.usgs.gov/weasel http://wwwbrr.cr.usgs.gov/warsmp http://wwwbrr.cr.usgs.gov/warsmp http://oms.ars.usda.gov http://oms.ars.usda.gov http://www.iscmem.org http://www.iscmem.org