Citation:

Fu, J., G. Carmichael, F. Dentener, W. Aas, C. Andersson, L. Barrie, A. Cole, C. Galy-Lacaux, J. Geddes, S. Itahashi, M. Kanakidou, L. Labrador, F. Paulot, D. Schwede, J. Tan, AND R. Vet. Improving Estimates of Sulfur, Nitrogen, and Ozone Total Deposition through Multi-Model and Measurement-Model Fusion Approaches. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, 56(4):2134-2142, (2022). https://doi.org/10.1021/acs.est.1c05929

Impact/Purpose:

This concept paper serves as an announcement of the intent of the World Meteorological Organization workgroup on Measurement-Model Fusion for Global Total Atmospheric Deposition to develop a method for using using multi-model ensemble and measurement-model fusion approaches for mapping atmospheric deposition.  The measurement-model fusion approaches build on the foundational approach used by the EPA in developing the deposition surfaces for the National Atmospheric Deposition Program.

Description:

Earth system and environmental impact studies need high quality and up-to-date estimates of atmospheric deposition. This study demonstrates the methodological benefits of multimodel ensemble and measurement-model fusion mapping approaches for atmospheric deposition focusing on 2010, a year for which several studies were conducted. Global model-only deposition assessment can be further improved by integrating new model-measurement techniques, including expanded capabilities of satellite observations of atmospheric composition. We identify research and implementation priorities for timely estimates of deposition globally as implemented by the World Meteorological Organization.

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