GIS Modeling of Source Areas of Nonpoint Source Pollution
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Transcript of GIS Modeling of Source Areas of Nonpoint Source Pollution
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GIS Modeling of Source Areas of Nonpoint Source PollutionJames Zollweg, Ph.D.SUNY-Brockport Earth SciencesWater Resources ProgramGeographic Information Systems Program
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OverviewBrief BiographyMapping and Illustration Using GISComputation of P-Index Runoff and Soil Moisture Modeling with SMRHydrologic and Chemical Controls on P Exportprevious resultsnew directions
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OverviewBrief BiographyMapping and Illustration Using GISComputation of P-Index Runoff and Soil Moisture Modeling with SMRHydrologic and Chemical Controls on P Exportprevious resultsnew directions
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Brief Biography1994: Ph.D. (Cornell University) Effective Use of GIS in Rainfall-Runoff Modeling1993-96: USDA ARS - Pasture Systems and Watershed Management Research Lab Optimizing Nutrient Management to Sustain Agricultural Ecosystems and Protect Water Quality1996-present: SUNY-Brockport GIS and Water Resources (wetlands, flood forecasting)
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USDA-ARS
Use of GIS in Agricultural Nonpoint Source Pollution Control
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OverviewBrief BiographyMapping and Illustration Using GISComputation of P-Index Runoff and Soil Moisture Modeling with SMRHydrologic and Chemical Controls on P Exportprevious resultsnew directions
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Mapping / Illustration Using GISReports and PresentationsPublic informationwww.blackcreekwatershed.orgData ExplorationsVisualizationdiscoveryinsight
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Mapping / Illustration Using GIS
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OverviewBrief BiographyMapping and Illustration Using GISComputation of P-Index Runoff and Soil Moisture Modeling with SMRHydrologic and Chemical Controls on P Exportprevious resultsnew directions
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Computation of P-IndexPreservation of spatial variabilityComputational efficiencyVisualization of resultsFacilitates improved understanding of physical interactions
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OverviewBrief BiographyMapping and Illustration Using GISComputation of P-Index Runoff and Soil Moisture Modeling with SMRHydrologic and Chemical Controls on P Exportprevious resultsnew directions
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Runoff and Soil Moisture Modeling with SMRVariable Source Area HydrologyCritical Source Areas for Nonpoint Source Pollution
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Runoff and Soil Moisture Modeling with SMRSMR The Soil Moisture Routing ModelProduct of Zollwegs ThesisGIS is the Ideal Environmental Modeling PlatformSpatially-distributed, Physically-based
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Runoff and Soil Moisture Modeling with SMRCoded and Running in Lennon Hall Using Visual BASIC within ArcGIS 8.2Complete Control of CodeEasy to Integrate Additional Environmental Modeling Concepts
Private Function HM_NeighborFlow(sStorage As String, _ pInterflowRaster As IRaster, ierr As Integer) As Boolean '----------------------------------------------------------------------------- ' The storage is adjusted for the amount leaving, the interflow and the amount ' entering from neighbor cells. The maps north, northeast, east, southeast, ' south, southwest, west and northwest represent the fraction of flow heading ' in 'that' direction from the current cell. Therefore to find the amount ' entering the current cell one needs to look at the neighbor cells and the ' corresponding maps which point to the current cell. For example, if the ' current cell is (i,j) and one looks to the north (i-1,j) one would use the ' south map to get the fraction of flow since the current cell is south of its ' north neighbor. ' --------------------------------------------------------------- ' | cell: (i-1, j-1) | cell: (i-1, j) | cell: (i-1, j+1) | ' | map: southeast | map: south | map: southwest | ' --------------------------------------------------------------- ' | cell: (i-1, j) | cell: (i, j) | cell: (i+1, j+1) | ' | map: east | map: none | map: west | ' --------------------------------------------------------------- ' | cell: (i+1, j-1) | cell: (i+1, j) | cell: (i+1, j+1) | ' | map: northeast | map: north | map: northwest | ' ---------------------------------------------------------------
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OverviewBrief BiographyMapping and Illustration Using GISComputation of P-Index Runoff and Soil Moisture Modeling with SMRHydrologic and Chemical Controls on P Exportprevious resultsnew directions
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(1996)
USDA-ARS
Pasture Systems and Watershed Management Research LaboratoryUSDA-ARSUniversity Park, PA
J.A. ZollwegW.J. GburekH.B. PionkeA.N. Sharpley
GIS-Based Delineation of Source Areas of Phosphorus within Northeastern Agricultural Watersheds
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Brown Watershed Tributary of WD38, Klingerstown, PA
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USDA-ARS
Model Results4/25/92
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USDA-ARS
P Loss
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OverviewBrief BiographyMapping and Illustration Using GISComputation of P-Index Runoff and Soil Moisture Modeling with SMRHydrologic and Chemical Controls on P Exportprevious resultsnew directions
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More Concepts to TryChemical dynamics of P Export Transport processesErosion modeling and sediment transportPathogen transport
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GoalsSupport mechanics of projectBetter understanding of watershed P dynamicsContinue my work and achieve mutual benefit!