climatewatershed considerationsfarming operationslivestockhuntingfishingfamily recreationriparian...

ClimateWatershed ConsiderationsFarming OperationsLivestockHuntingFishingFamily RecreationRiparian &WetlandsLakes & ReservoirsGully & Streambank Erosion

Where do the Pollutants Come From ?

Pollutant Loading Assessment Point for TMDL’s

STREAM HABITAT

RIPARIAN ZONES

CHANNEL EVOLUTION

AGNPS 2001 Watershed Evaluation Tool

AnnAGNPS (RUSLE)

SIDO, SNTEMP,

CCHE1D & CONCEPTS

Lake Models

FIELDS

WEATHER

AGNPS 2001AGNPS 2001

Agricultural Research Service

A partnering effort between the:

and Natural Resource Conservation

Service

AGNPS 2001 Input/OutputGIS support, TOPAZ, Visual Basic Editor.

Climate synthetic weather generator (GEM)

AnnAGNPSpollutant loadings (sediment & chemicals).

CONCEPTSinstream hydrodynamic processes.

SNTEMPstream network water temperature.

SIDOsediment intrusion & dissolved oxygen for redds.

Fry Emergencemortality of salmonid fry.

Salmonid Total Life Stagesspawning-to-return spawners.

Salmonid Economicsnet economic value of salmonids in Pacific

Northwest.

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 95no memory limits.

AnnAGNPS: operational modes

Convert from AGNPS 5.0

Single-event

Sediment - USLE

Limited input

No daily climate file

AGNPS AnnAGNPS

Initial or converted

Continuous-simulation

Sediment - RUSLE

Full input capability

Daily climate file required

AnnAGNPS: Uses NRCS Standards

Weather Generation - GEM

Runoff – SCS Curve Number

Peak Runoff – TR-55

Erosion - RUSLE

Sediment Delivery - HUSLE

Processes

Soils - NASIS

Crops and Operations – Set by NRCS State Agronomists

HUWQ Databases – Fertilizer, Pesticides, Animal Wastes, etc.

Databases

AnnAGNPS:AnnAGNPS: the pollutant loading model the pollutant loading model

Loadings by kind of pollutant : Waterrainfall, snowmelt, irrigation, & point sources. Sediment by particle size-class:

– clay;– silt;– sand;– small aggregate; and– large aggregate.

Chemicals (adsorbates & solutes):– nutrientsnitrogen, phosphorous, & organic carbon; and– pesticidesany number, any kind.

AnnAGNPS:AnnAGNPS: the pollutant loading model the pollutant loading model

Loadings by source of pollutant:

Cells (land areas)water, sediment, & chemicals.

Feedlotssoluble nutrients.

Gulliessediment and chemicals.

Point Sourceswater and chemicals.

Reachessediment yield & chemical transport.

Impoundmentssediment deposition.

AnnAGNPS:AnnAGNPS: major processes major processes

cell Fcell E

cell D

Cell Ccell Acell Breach 1

reach 4

reach 2

watershed outlet

feedlot

point source

AnnAGNPS: source accounting

cell Fcell E

cell D

cell Ccell Acell Breach 1

reach 4

reach 2

watershed outlet

feedlot

point source

80% of outlet pest X from

cell C

10% of outlet sediment from

25% of outlet nitrogen from feedlot

AGNPS 2001 WATERSHED DESCRIPTION

SUBWATERSHEDS

CONNECTED BY THE CHANNEL NETWORK

FOCUS ON STREAM REACHES

Tucannon River cropland after thunderstorm showing severe erosion

AnnAGNPS:AnnAGNPS: cell processes cell processes

Weathervaries air temperatures, & relative humidity; allows for variable rainfall between cells.

Precipitationrainfall, snowmelt, & irrigation runoff.

Soil moistureprecipitation, infiltration, percolation, & evapotranspiration.

Management operationscrops, rotation, fertilizer, etc.

Irrigationdetermines amount if automatic.

Winter routinessnowpack, melt, & frozen ground.

Curve numberantecedent moisture condition (current soil

moisture). Sediment yieldRUSLE or USLE.

AnnAGNPS: cell processes (continued)

Pesticidesapplication & decay; adsorbates & solutes.

Nutrients application & decay; adsorbates & solutes.

Adds cell data to reach routing processesif runoff event occurs.

Adds cell data to simulation totalsif source accounting requested.

Writes to a detailed stream network fileif this output is requested.

AnnAGNPS: cell processes (continued)

Cells: Foliagerelative growth, nutrients, & pesticides; Soil surfaceresidue, nutrients, & pesticides; Soil profilemoisture, frozen layers, residue, nutrients, &

pesticides; and Operationsnext operation & rotation year.

Feedlots: Manure pack nutrientssoluble only; Date of new operationcalendar date; Amount left over from previous operationnon-dimensional

ratio; Initial manure amountmass; and Daily change in manure production ratemass per unit time.

AnnAGNPS:AnnAGNPS: reach processes reach processes

WaterWaterrainfall, snowmelt, irrigation, & point rainfall, snowmelt, irrigation, & point sources.sources.

Sediment YieldSediment Yieldby particle size-class & by particle size-class & source.source.

ChemicalsChemicalsnutrients, pesticides, & organic nutrients, pesticides, & organic carbon.carbon.

ImpoundmentsImpoundmentssediment deposition.sediment deposition.

USDA-ARS-NSL - USDA-ARS-NSL - CONCEPTS CONCEPTS

CONCONSERVATIONALSERVATIONAL

CCHANNELHANNEL

EEROSIONROSION

PPOLLUTANTOLLUTANT

TTRANSPORTRANSPORT

SSYSTEMYSTEM

USDA-ARS-NSL - USDA-ARS-NSL - CONCEPTS CONCEPTS

Integrates the impact on Integrates the impact on instream water quality from instream water quality from upland and channel upland and channel processes to provide a processes to provide a comprehensive stream comprehensive stream corridor evaluation tool.corridor evaluation tool.

USDA-ARS-NSL - CONCEPTS USDA-ARS-NSL - CONCEPTS

Impact of Channel IncisionImpact of Channel Incision

A common and destructive A common and destructive mode of channel erosionmode of channel erosion

Bed lowering causes banks Bed lowering causes banks to become unstable and to become unstable and widening proceeds at a very widening proceeds at a very rapid pacerapid pace

Destabilizes the landscape Destabilizes the landscape and leads to severe and leads to severe downstream impactsdownstream impacts

USDA-ARS-NSL - CONCEPTS USDA-ARS-NSL - CONCEPTS

Characterization of Streambank Characterization of Streambank ErosionErosion

Bank-toe erosionBank-toe erosion Integration of hydraulic, Integration of hydraulic,

sedimentologic, and geo-sedimentologic, and geo-technical processes technical processes influencing bank failureinfluencing bank failure

Frequency of bank failureFrequency of bank failure Incipient motion criteria Incipient motion criteria

for removal of failed for removal of failed materialmaterial

USDA-ARS-NSL - CONCEPTSUSDA-ARS-NSL - CONCEPTS

Effect of riparian vegetation on river Effect of riparian vegetation on river restorationrestoration

Flexible vegetation exert Flexible vegetation exert major influences on flow major influences on flow resistance resistance

Areas of enhanced deposition Areas of enhanced deposition and erosion affect channel and erosion affect channel geometrygeometry

Plant roots affect stream Plant roots affect stream bank stabilitybank stability

Woody debris influence flow Woody debris influence flow channel hydraulics and channel hydraulics and morphologymorphology

Upper middle Tucannon River: showing loss of riparian vegetation

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

Integration of Riparian Zones Within AGNPS 2001

Riparian Buffer SystemRiparian Buffer System

Stream

FieldErosion and drainage

REMM: componentsREMM: components

hydrology

sediment

vegetativegrowth

nutrientdynamics

REMM: spatial scaleREMM: spatial scale

Zone 1Zone 3 Zone 2

PHYSICAL CHARACTERIZATION3 zones3 soil layerslitter layer

CONCEPTSSNTEMP

CHARIMA

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.

AGNPS 2001 Web Site AGNPS 2001 Web Site (continued)(continued)

Distribution via web siteDistribution via web site– go to: “go to: “http://www.sedlab.olemiss.eduhttp://www.sedlab.olemiss.edu”; and”; and

– thenthen click on: “AGNPS 2001 Project”; orclick on: “AGNPS 2001 Project”; or

– go directly to: go directly to: ““http://www.sedlab.olemiss.edu/AGNPS.htmlhttp://www.sedlab.olemiss.edu/AGNPS.html””

AGNPS 2001 Registered UsersFederal Government

ARSEPANIHNRCSUSCOEWORLDBANKUSGS

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

All 50 States

AGNPS 2001 Registered Users (cont.)Foreign Countries (over 40)

ArgentinaAustraliaAustriaBelizeBoliviaBrazilCanadaChileChinaColumbiaCzechoslovakiaEcuadorEgyptFinlandFranceGermanyHungary

IndonesiaItalyJapanJordanKoreaLithuaniaMalaysiaMexicoNew ZealandNetherlands

Philippines PolandSingaporeSloviaSouth KoreaSpainSweden

SwitzerlandSyriaTaiwanTanzaniaThailandTurkeyVenezuelaVietnam

AGNPS 2001AGNPS 2001 Interface ComponentsInterface Components

What the User sees.What the User sees.

Tools to automatically determine Tools to automatically determine model parameters.model parameters.

Tools to modify and add Tools to modify and add parameters.parameters.

Tools to visualize the watershed.Tools to visualize the watershed.

AGNPS 2001AGNPS 2001

AGNPS 5.0 to AnnAGNPS Converter

Flownet Generator

AnnAGNPS

Output Processor

AnnAGNPS Input File

Names(optional)

AnnAGNPS Input

(watershed data)

Daily Climate

New Average Annual &

Event Tables

Old Reach Event & Source

Accounting output

Sorted Source &

Event Tables

Stream Network

Stream Network CCHE1D

DEM’s

AGNPS 5.0 Input Data

Channel Evolution

& Transport

Input Editor

Standard Resource Databases

Climate Data

Partial AnnAGNPS

Stream Corridor

CONCEPTS

Key Parameters: Coordinates of Watershed Outlet, Size of DEM

Area shown 4 x 6 miles

Outlet Location

STREAM NETWORK & ASSOCIATED SUBWATERSHEDS

47 SUBWATERSHEDS

227 SUBWATERSHEDS

470 SUBWATERSHEDS

DIGITIZED vs. GENERATED STREAM NETWORK

GENERATED STREAM NETWORK ASSOCIATED WITH 47 SUBWATERSHEDS

GENERATED STREAM NETWORK ASSOCIATED WITH 168 SUBWATERSHEDS

DIGITIZED STREAM NETWORK ASSOCIATED WITH BLUE LINES ON 7.5 MINUTE USGS QUADS

1987 ACCUMULATED RUNOFF by CELL GOODWIN CREEK

0 22.48 in

1987 ACCUMULATED SEDIMENT by CELL GOODWIN CREEK

1991 ACCUMULATED SEDIMENT by CELL GOODWIN CREEK

147.91