Using FME to Derive Fishnet Air Emission Values

Sean Kurash

About Me

Golder Associates Ltd. GIS Analyst

Sean Kurash E.I.T.

Summarize Air Emissions

by a Grid

• Create Fishnet (A grid of squares) with corner coordinates

• Calculate residential and transportation air emissions for each cell.

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

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

Create Fish Net

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.

The Workbench 1

The Workbench 2

The Workbench 3

The Workbench 4

The Workbench 5

Complex process at the click of a button.See only the desired intermediate datasets for QA.Method is documentedRepeatableClean attributes!

Thank you!Sean_Kurash@Golder.com