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Climate

Gully & Streambank Erosion. Watershed Considerations. Lakes & Reservoirs. Farming Operations. Family Recreation. Climate. Livestock. Hunting. Riparian &Wetlands. Fishing. Where do the Pollutants Come From ?. Pollutant Loading Assessment Point for TMDL’s.

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Climate

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  1. Gully & Streambank Erosion Watershed Considerations Lakes & Reservoirs Farming Operations Family Recreation Climate Livestock Hunting Riparian &Wetlands Fishing

  2. Where do the Pollutants Come From ? Pollutant Loading Assessment Point for TMDL’s

  3. AGNPS 2001 Watershed Evaluation Tool Lake Models LAKES AnnAGNPS (RUSLE) FIELDS RIPARIAN ZONES REMM CHANNEL EVOLUTION CCHE1D & CONCEPTS SIDO, SNTEMP, etc. STREAM HABITAT GEM WEATHER

  4. AGNPS 2001 A partnering effort between the: Agricultural Research Service and Natural Resource Conservation Service

  5. AGNPS 2001 • Input/OutputGIS support, TOPAZ, Visual Basic Editor. • Climate synthetic weather generator (GEM) • AnnAGNPSpollutant loadings (sediment & chemicals). • CONCEPTSinstream hydrodynamic processes. • SNTEMPstream network water temperature. • SIDOsediment intrusion & dissolved oxygen for redds. • Fry Emergencemortality of salmonid fry. • Salmonid Total Life Stagesspawning-to-return spawners. • Salmonid Economicsnet economic value of salmonids in Pacific Northwest.

  6. AnnAGNPS • Annualized Agricultural Non-Point Source Pollution computer model. • Continuous simulation, surface runoff pollutant loading (PL) computer model. • Replacement for single-event AGNPS 5.0. • Written in standard ANSI Fortran 95no memory limits.

  7. AGNPSAnnAGNPS • Convert from AGNPS 5.0 • Single-event • Sediment - USLE • Limited input • No daily climate file • Initial or converted • Continuous-simulation • Sediment - RUSLE • Full input capability • Daily climate file required AnnAGNPS: operational modes

  8. AnnAGNPS: Uses NRCS Standards Processes Databases • Soils - NASIS • Crops and Operations – Set by NRCS State Agronomists • HUWQ Databases – Fertilizer, Pesticides, Animal Wastes, etc. • Weather Generation - GEM • Runoff – SCS Curve Number • Peak Runoff – TR-55 • Erosion - RUSLE • Sediment Delivery - HUSLE

  9. AnnAGNPS: the pollutant loading model Loadings by kind of pollutant : • Waterrainfall, snowmelt, irrigation, & point sources. • Sediment by particle size-class: • clay; • silt; • sand; • small aggregate; and • large aggregate. • Chemicals (adsorbates & solutes): • nutrientsnitrogen, phosphorous, & organic carbon; and • pesticidesany number, any kind.

  10. AnnAGNPS: the pollutant loading model Loadings by source of pollutant: • Cells (land areas)water, sediment, & chemicals. • Feedlotssoluble nutrients. • Gulliessediment and chemicals. • Point Sourceswater and chemicals. • Reachessediment yield & chemical transport. • Impoundmentssediment deposition.

  11. cell A Cell C cell B cell D cell F cell E AnnAGNPS: major processes gully reach 1 reach 3 reach 2 feedlot impoundment reach 4 point source watershed outlet

  12. cell A cell C cell B cell D cell F cell E AnnAGNPS: source accounting 10% of outlet sediment from gully 80% of outlet pest X from cell C gully reach 1 feedlot Reach 3 reach 2 25% of outlet nitrogen from feedlot impoundment reach 4 point source watershed outlet

  13. FOCUS ON STREAM REACHES SUBWATERSHEDS CONNECTED BY THE CHANNEL NETWORK AGNPS 2001 WATERSHED DESCRIPTION

  14. Tucannon River cropland after thunderstorm showing severe erosion

  15. AnnAGNPS: cell processes • Weathervaries air temperatures, & relative humidity; allows for variable rainfall between cells. • Precipitationrainfall, snowmelt, & irrigation runoff. • Soil moistureprecipitation, infiltration, percolation, & evapotranspiration. • Management operationscrops, rotation, fertilizer, etc. • Irrigationdetermines amount if automatic. • Winter routinessnowpack, melt, & frozen ground. • Curve numberantecedent moisture condition (current soil moisture). • Sediment yieldRUSLE or USLE.

  16. AnnAGNPS: cell processes (continued) • Pesticidesapplication & decay; adsorbates & solutes. • Nutrients application & decay; adsorbates & solutes. • Adds cell data to reach routing processesif runoff event occurs. • Adds cell data to simulation totalsif source accounting requested. • Writes to a detailed stream network fileif this output is requested.

  17. AnnAGNPS:cell processes (continued) • Cells: • Foliagerelative growth, nutrients, & pesticides; • Soil surfaceresidue, nutrients, & pesticides; • Soil profilemoisture, frozen layers, residue, nutrients, & pesticides; and • Operationsnext operation & rotation year. • Feedlots: • Manure pack nutrientssoluble only; • Date of new operationcalendar date; • Amount left over from previous operationnon-dimensional ratio; • Initial manure amountmass; and • Daily change in manure production ratemass per unit time.

  18. AnnAGNPS: reach processes • Waterrainfall, snowmelt, irrigation, & point sources. • Sediment Yieldby particle size-class & source. • Chemicalsnutrients, pesticides, & organic carbon. • Impoundmentssediment deposition.

  19. USDA-ARS-NSL - CONCEPTS CONSERVATIONAL CHANNEL EROSION POLLUTANT TRANSPORT SYSTEM

  20. USDA-ARS-NSL - CONCEPTS Integrates the impact on instream water quality from upland and channel processes to provide a comprehensive stream corridor evaluation tool.

  21. USDA-ARS-NSL - CONCEPTS Impact of Channel Incision • A common and destructive mode of channel erosion • Bed lowering causes banks to become unstable and widening proceeds at a very rapid pace • Destabilizes the landscape and leads to severe downstream impacts

  22. USDA-ARS-NSL - CONCEPTS Characterization of Streambank Erosion • Bank-toe erosion • Integration of hydraulic, sedimentologic, and geo-technical processes influencing bank failure • Frequency of bank failure • Incipient motion criteria for removal of failed material

  23. USDA-ARS-NSL - CONCEPTSEffect of riparian vegetation on river restoration • Flexible vegetation exert major influences on flow resistance • Areas of enhanced deposition and erosion affect channel geometry • Plant roots affect stream bank stability • Woody debris influence flow channel hydraulics and morphology

  24. Upper middle Tucannon River: showing loss of riparian vegetation

  25. Lower end Tucannon River: showing lack of riparian vegetation & stream instability

  26. Integration of Riparian Zones Within AGNPS 2001

  27. Riparian Buffer System Stream Erosion and drainage Field Integration of Riparian Zones Within AGNPS 2001

  28. REMM: components vegetative growth hydrology nutrient dynamics sediment Integration of Riparian Zones Within AGNPS 2001

  29. Integration of Riparian Zones Within AGNPS 2001

  30. REMM: spatial scale PHYSICAL CHARACTERIZATION 3 zones 3 soil layers litter layer Zone 3 Zone 2 Zone 1 Integration of Riparian Zones Within AGNPS 2001

  31. Integration of Riparian Zones Within AGNPS 2001

  32. AGNPS 2001 Web Site • What is available at the web site • web site instructions; • model(s) overviews • technical feature abstracts; • reference input databases • documentation; • executable files; • sample data sets; • profiles of management personnel, sponsors, technical team, & cooperating users; • direct link to technical support; and • AGNPS version 5.0 (single-event) archives.

  33. AGNPS 2001 Web Site (continued) • Distribution via web site • go to: “http://www.sedlab.olemiss.edu”; and • thenclick on: “AGNPS 2001 Project”; or • go directly to: “http://www.sedlab.olemiss.edu/AGNPS.html”

  34. AGNPS 2001 Registered Users • Federal Government • ARSEPANIHNRCS • USCOEWORLDBANK • USGS • All 50 States • Universities • ClemsonColorado StateIowa StateKansas StateMichigan StateOregon StatePenn StateVirginia State Univ. of FloridaUniv. of GeorgiaUniv. of KansasUniv. of MassachusettsUniv. of MississippiUniv. of MontanaUniv. of NebraskaUniv. of New MexicoUniv. of North DakotaUniv. of North TexasUniv. of TexasUniv. of Wisconsin

  35. AGNPS 2001 Registered Users (cont.) • Foreign Countries (over 40) • ArgentinaAustraliaAustriaBelizeBoliviaBrazilCanadaChileChinaColumbia • Czechoslovakia • Ecuador • EgyptFinland • FranceGermanyHungary • IndonesiaItalyJapanJordan • KoreaLithuaniaMalaysia • Mexico • New Zealand Netherlands Philippines Poland • Singapore Slovia South Korea • Spain • Sweden SwitzerlandSyriaTaiwan TanzaniaThailand TurkeyVenezuela Vietnam

  36. AGNPS 2001Interface Components • Tools to automatically determine model parameters. What the User sees. • Tools to modify and add parameters. • Tools to visualize the watershed.

  37. Sorted Source & Event Tables AnnAGNPS Input File Names(optional) AGNPS 5.0 to AnnAGNPS Converter AGNPS5.0 Input Data New AverageAnnual & Event Tables Output Processor DEM’s FlownetGenerator AnnAGNPSInput (watershed data) AnnAGNPS OldReachEvent & Source Accounting output Partial AnnAGNPS Input Stream Corridor CONCEPTS Stream Network CCHE1D InputEditor Daily Climate Data Standard Resource Databases StreamNetwork Event Channel Evolution & Transport GEM Climate Data AGNPS 2001

  38. Key Parameters: Coordinates of Watershed Outlet, Size of DEM Outlet Location Area shown  4 x 6 miles

  39. Outlet Location

  40. 47 SUBWATERSHEDS 227 SUBWATERSHEDS 470 SUBWATERSHEDS STREAM NETWORK & ASSOCIATED SUBWATERSHEDS

  41. GENERATED STREAM NETWORK ASSOCIATED WITH 168 SUBWATERSHEDS DIGITIZED vs. GENERATED STREAM NETWORK GENERATED STREAM NETWORK ASSOCIATED WITH 47 SUBWATERSHEDS DIGITIZED STREAM NETWORK ASSOCIATED WITH BLUE LINES ON 7.5 MINUTE USGS QUADS

  42. 1987 ACCUMULATED RUNOFF by CELL GOODWIN CREEK 0 22.48 in

  43. 1987 ACCUMULATED SEDIMENT by CELL GOODWIN CREEK 19.94 t/ac

  44. 5 3 2 1 8 1991 ACCUMULATED SEDIMENT by CELL GOODWIN CREEK 147.91 t/ac

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