Application of Combined Mathematical and Meteorological Receptor Models (UNMIX & Residence Time Analysis) to 1991-99 IMPROVE Aerosol Data from Brigantine Wilderness Area, NJ

Slides Presented to Meeting of the IMPROVE Steering Committee, Davis, CA, 4/4/2001

 

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Table of Contents

Introduction

UNMIXing by Major Species

Initial Source Profiles from 4 model runs

Identifying "Redundant Sources"

Graphic depiction of redundant source compositions

Common trace element contributions from redundant sources

Sum of Sources vs. Measured & Reconstructed Mass

Seasonal Source Contributions

Best, Worst and Average Day Source Contributions

Multi-year Trends

Thermally Stratified Carbon Fractions

Day-of-Week Differences

Wind Roses from local surface meteorology

Back Trajectory Source Region Probabilities (1)

Back Trajectory Source Region Probabilities (2)

Back Trajectory Source Region Probabilities (3)

Highest Incremental Probability regions for 8 Sources

Temporal & Spatial Soil Dust patterns

Back Trajectories for "Marine Dust" Episodes

High Al:Ca Ratio Indicates Sahara Dust

Seven Similar Sea Salt Sources

Five Redundant Soil Sources

Dirty Dirt and Salt

Author: Rich Poirot, VT DEC (802-241-3807)

Email: richpo@dec.anr.state.vt.us

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