Precipitation-Runoff and Streamflow-Routing Models for the ...

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123˚00´´ 45´30´122˚15´45˚15´1420200014200000MillRiverRiverGribbleCreekMolallaMilkRiverCreekRockPuddingButteCreekDickey CrN FkZollnerRiverCreekCreek45˚00´Abiqua14200300CreekTroutMolallaLittlePuddingMolalla14198500CreekRiverUpperRiverPuddingSilverRiverCreek44˚52´30´´0 5 10 MILES0 5 10 KILOMETERSBase from U.S. Geological Survey digital data, 1:100,000, 1978-84Universal Transverse Mercator projection, Zone 1014211000RM 4.811EXPLANATIONTributary inflowStream-gaging station andU.S. Geological Surveyidentification numberMolalla River river mile—measured from the mouth ofMolalla RiverPudding River river mile—measured from the mouth ofPudding RiverModel junction numberModel branch numberMill CreekRM 7.214202000RM 8.114200300Figure 21. Molalla River Basin, Oregon, and schematic diagram of the stream network.5RM 15.5RM 20.2 6RM 29.1Little PuddingRiver4RM 45.6Upper PuddingRiverPuddingZollner CreekRM 36.9Abiqua CreekRM 49.3Rock CreekButte Creek5RM 52.8SilverCreekRiverGribble Creek3Molalla RiverRM 8.0RM 22.31RM 26.5432RM 27.11RM 0.0RM 0.8RM 5.014200000RM 6.02Milk CreekDickey CreekNorth ForkMolalla RiverTrout Creek14198500RM 32.544
100,000ObservedSimulated10,000DISCHARGE, IN CUBIC FEET PER SECOND1,00010010O N D J F M A M J J A S O N D J F M A M J J A S1973 1974WATER YEARFigure 22. Observed and simulated discharge from combined Precipitation-Runoff Modeling System and DiffusionAnalogy Flow (modeling for Molalla River at Canby, Oregon (stream-gaging station 14200000), 1973–74 water years.(See Glossary for program descriptions.)simulate 226 mi 2 of intervening drainage area (70 percentof the basin). Statistical bias and error for the calibrationand verification time periods are shown intable 12. The absolute errors of 16.3 and 20.7 percentfor calibration and verification periods, respectively,are within the expected accuracy for simulation, whensuch a large part of the basin is simulated by rainfallrunoffmodeling. The relatively large network modelingbias in verification is probably indicative of largevariations in irrigation from year to year. Low-flowsimulations are unsatisfactory because no attemptwas made to account for summertime irrigation.Water-use information (Broad and Collins, 1996)is by major hydrologic unit (the entire Molalla RiverBasin is one unit), so data were not available todirectly assess water use for this part of the basin.Water consumption in the Pudding River Basin, whichflows into the Molalla River just downstream of theCanby gage, is probably larger by about a 3:1 ratio.Water-use information reported by Broad and Collinsindicates a 1990 annual use of about 110 ft 3 /s in theentire basin (including the Pudding River).Yamhill RiverThe mapped and schematized Yamhill Riverstream network is shown on figure 23. The YamhillRiver is schematized as a one-branch network withfour tributary inflows. A discharge hydrograph fromobserved data at the USGS stream-gaging station on45
Page 1:
Precipitation-Runoff and Streamflow
Page 4 and 5: U.S. DEPARTMENT OF THE INTERIORBRUC
Page 6 and 7: Determining Travel Time and Dilutio
Page 8 and 9: 2. Stream-gaging stations used to c
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Page 12 and 13: network-routing models where availa
Page 14 and 15: made on the main stem at base-flow
Page 16 and 17: Figure 1. Willamette River Basin, O
Page 18 and 19: EvapotranspirationINPUTSAirtemperat
Page 20 and 21: Table 1. Climate stations used to c
Page 22 and 23: Table 2. Stream-gaging stations use
Page 24 and 25: Figure 4. Mean annual precipitation
Page 26 and 27: Major Land Use MapHydrologic Soil G
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Page 30 and 31: Table 6. Geology and soils matrix o
Page 32 and 33: tion value of the HRU class by the
Page 34 and 35: Table 8. Selected monthly basinwide
Page 36 and 37: Figure 9. Location of Precipitation
Page 38 and 39: Table 11. Statistical analyses of P
Page 40 and 41: flow can become a significant compo
Page 42 and 43: diffusion at selected grid interval
Page 44 and 45: samples were collected at various d
Page 46 and 47: 3,0002,500June 21-30, 1993September
Page 48 and 49: stream network is shown on figure 1
Page 50 and 51: 122˚30´ 15´122˚00´121˚45´Roc
Page 52 and 53: 123˚22´30´´ 123˚15´ 123˚00´
Page 56 and 57: YamhillRiver123˚45´ 30´ 15´123
Page 58 and 59: 123˚07´30´´ 123˚00´ 45´ 30´
Page 60 and 61: 123˚07´30´´ 123˚00´ 45´ 30´
Page 62 and 63: 44˚15´14166000122˚07´30´´Will
Page 64 and 65: 122˚15´ 122˚00´121˚52´30´´4
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Page 68 and 69: observed flow at the Willamette Riv
Page 70 and 71: DAFLOW model, and peak amplitude is
Page 72 and 73: 20DYE CONCENTRATION, IN MICROGRAMS
Page 74 and 75: ARC-INFO and Geographic Information
Page 76 and 77: WILL.WDMData-base file(Observed pre
Page 78 and 79: WILL.WDMData-base fileSWSTATSFreque
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Page 84 and 85: APPENDIX 1. STREAM GEOMETRY FOR MAI
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APPENDIX 1. STREAM GEOMETRY FOR MAI
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APPENDIX 2. ARC MACRO LANGUAGE (AML
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APPENDIX 3. DEFINITIONS OF PARAMETE
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APPENDIX 3. DEFINITIONS OF PARAMETE
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APPENDIX 4. MEASUREMENTS USED TO DE
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APPENDIX 5. EXAMPLE PRECIPITATION-R
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APPENDIX 5. EXAMPLE PRECIPITATION-R
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APPENDIX 6. DIFFUSION ANALOGY FLOW
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APPENDIX 7. PROGRAMMING STEPS TO IN
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APPENDIX 8. PROGRAMMING STEPS TO DE
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150Climatemaxtempmintempprecipitati
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APPENDIX 10. DIRECTORY TREE AND DES
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APPENDIX 11. DIRECTORY TREES AND DE
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APPENDIX 11. DIRECTORY TREES AND DE
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APPENDIX 12. DIRECTORY FOR will.wdm
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APPENDIX 13. PROGRAMMING STEPS FOR
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APPENDIX 14. INPUT FILES FOR BRANCH
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Precipitation-Runoff and Streamflow-Routing Models for the ...

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