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Experiments With The Assimilation of Fine Aerosols Using An Ensemble Kalman Filter


In a series of experiments we issue forecasts of fine aerosol concentration over the coterminous USA and southern Canada using the Weather Research and Forecasting – Chemistry model initialized with 3D-VAR or ensemble Kalman filter (EnKF) assimilation methods. Assimilated observations include surface measurements of fine aerosols from the United States Environmental Protection Agency AIRNow Data Exchange program. Evaluation statistics calculated over a month-and-half-long summer period demonstrate the advantage of EnKF over 3D-VAR and point to the limitations of applying a simple aerosol parameterization for predicting air quality over the forecast area. Strategies for further improvement of forecasting aerosol concentrations are discussed.

Article / Publication Data
Available Metadata
Accepted On
September 28, 2012
Fiscal Year
Publication Name
Journal of Geophysical Research
Published On
November 01, 2012
Final Online Publication On
November 01, 2012
Print Volume
Print Number
Submitted On
June 20, 2012


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Authors who have authored or contributed to this publication.

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