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Crop Yield in North Dakota as a function of Precipitation
Tyler McEwenGIS in Water Resources
Term Project Presentation12/7/2006
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Presentation OverviewPresentation Overview
Introduction/ObjectivesIntroduction/ObjectivesData CollectionData CollectionData Manipulation/ComputationData Manipulation/ComputationResultsResultsConclusionsConclusions
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North Dakota: Facts
• Largest City: Fargo
Population 90,672• Total Population
636,677• Total Area
68,676 square miles• 21.0 % Total Jobs From
Agriculture/Related Work
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Original ObjectivesOriginal Objectives
Obtain soil survey for entire state!!Obtain soil survey for entire state!! Join crops to soil type and Land Use/Land Cover Join crops to soil type and Land Use/Land Cover
(LULC) data(LULC) data Precipitation calculations and manipulationsPrecipitation calculations and manipulations Interpolate precipitation data Interpolate precipitation data Create crop yield predictive modelCreate crop yield predictive model
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Current ObjectivesCurrent Objectives
Join crop yield data to county shapefileJoin crop yield data to county shapefile Perform precipitation calculations and Perform precipitation calculations and
manipulationmanipulation Interpolate precipitation for 10 years of dataInterpolate precipitation for 10 years of data Create animations of crop yield versus Create animations of crop yield versus
precipitationprecipitation Derive correlationsDerive correlations
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Data SourcesData Sources
National Agricultural Statistics Service (NASS) National Agricultural Statistics Service (NASS) http://www.nass.usda.gov/http://www.nass.usda.gov/
National Climate Data Center – Climate Data Online National Climate Data Center – Climate Data Online http://cdo.ncdc.noaa.gov/CDO\http://cdo.ncdc.noaa.gov/CDO\
National Weather Service OST/SEC GIS Map Group National Weather Service OST/SEC GIS Map Group http://www.nws.noaa.gov/geodata/catalog/national/html/us_state.htmhttp://www.nws.noaa.gov/geodata/catalog/national/html/us_state.htm
InfoPlease.comInfoPlease.comhttp://www.infoplease.com/ipa/A0108256.htmlhttp://www.infoplease.com/ipa/A0108256.html
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Precipitation DataPrecipitation Data
Approximated growing season datesApproximated growing season dates Growing Season (May – September) Growing Season (May – September) Spring & durum wheat, corn, barley, sugarbeets, Spring & durum wheat, corn, barley, sugarbeets,
flaxseed, soybeans, canola, sunflower, hay and flaxseed, soybeans, canola, sunflower, hay and potatoespotatoes
Extrapolated precipitation data for growing Extrapolated precipitation data for growing seasonseason
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Data CollectionData Collection
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Data CollectionData Collection
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Data Manipulation/CalculationData Manipulation/Calculation
Calculated total rainfall during crop Calculated total rainfall during crop growing seasongrowing season
Joined rainfall to precipitation stationsJoined rainfall to precipitation stations Interpolated rainfall using Spline methodInterpolated rainfall using Spline method
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Precipitation InterpolationPrecipitation Interpolation
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ResultsResults
To the animations!To the animations!
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ConclusionsConclusions
No correlation between precipitation and No correlation between precipitation and crop yield…yetcrop yield…yet
East vs. west correlationEast vs. west correlation
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GoalsGoals
Produce more animationsProduce more animationsFind correlationFind correlation
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Special ThanksSpecial Thanks
GrandfatherGrandfatherDr. MaidmentDr. MaidmentTyler JansenTyler JansenFellow studentsFellow students
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Questions???Questions???