using fme to derive fishnet air emission values
TRANSCRIPT
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Using FME to Derive Fishnet Air Emission Values
Sean Kurash
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About Me
Golder Associates Ltd. GIS Analyst
Sean Kurash E.I.T.
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Summarize Air Emissions
by a Grid
• Create Fishnet (A grid of squares) with corner coordinates
• Calculate residential and transportation air emissions for each cell.
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PurposeUsed among other sources to derive the background concentration of air emissions within the air study area for an air quality assessment report supporting an industrial approval application.from townipproject.wikispaces.com from www.freefoto.com
http://www.freefoto.com/browse/99-05-0
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Inputs and OutputsWhat we have• Bounding coordinates of
study area• Fish net parameters
– 50 km by 50 km 5 km² grid cells.
• Census Dissemination areas and highway GIS data.
• Transportation and Residential Emissions by Region for 8 pollutants.
What we want• Fishnet of grid cells
with ID and coordinates
• Air emissions for each grid cell ID and each pollutant.
• Average elevation for each grid cell
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Create Fish Net
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It’s All in the Equations
Estimate residential emissions by scaling division emissions using population density of the dissemination areas. For Transportation emissions, length of highways was also used.
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The Workbench 1
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The Workbench 2
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The Workbench 3
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The Workbench 4
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The Workbench 5
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Complex process at the click of a button.See only the desired intermediate datasets for QA.Method is documentedRepeatableClean attributes!
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Thank [email protected]