Measurement Model Fusion for Acid Deposition Bob Vet, Elton Chan, Chul-Un Ro, Mike Shaw Bratts Lake, SK Bratts Lake, SK

Measurement Model Fusion for Acid Deposition Objective: to improve mapping and estimation of wet deposition across North America using measurement and modelling results.

Need for M/M Fusion Critical Load Exceedances for Lakes (Jeffries, 2010)

An example of past work (NB and QC networks not shown) The Canadian Air and Precipitation Monitoring Network (CAPMoN) The U.S. National Atmospheric Deposition Program/National Trends Network (NADP) (NB and QC networks not shown)

2002 Measurement and Model Results DATA INTERPOLATION BY KRIGING AURAMS MODEL RESULTS

Measurement/Model Fusion - 2002 SO42- Wet Deposition (kg/ha/yr)

% Difference between Fused and AURAMS SO42- Wet Deposition 100 (model-measurement) / model

An Air Quality Example of Measurement-Model Fusion Needs: The Canadian Air Quality Management System and Canada-Wide Standards for PM2.5

Summary There is a strong national and international need for measurement-model fusion methods for deposition and air quality