Pulse Brain · Growing Health Evidence Index
Peer-reviewed

A Vertically Resolved Canopy Improves Chemical Transport Model Predictions of Ozone Deposition to North Temperate Forests

Michael P. Vermeuel, Dylan B. Millet, Delphine K. Farmer, L. Ganzeveld, A.J. Visser, Hariprasad D. Alwe, Timothy H. Bertram, Patricia Cleary, Ankur R. Desai, Detlev Helmig, Sarah Kavassalis, Michael F. Link, Matson A. Pothier, Mj Riches, Wei Wang, Sara Williams

Journal of Geophysical Research Atmospheres · 2024

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Summary

Abstract Dry deposition is the second largest tropospheric ozone (O 3 ) sink and occurs through stomatal and nonstomatal pathways. Current O 3 uptake predictions are limited by the simplistic big‐leaf schemes commonly used in chemical transport models (CTMs) to parameterize deposition. Such schemes fail to reproduce observed O 3 fluxes over terrestrial ecosystems, highlighting the need for more realistic treatment of surface‐atmosphere exchange in CTMs. We address this need by linking a resolved canopy model (1D Multi‐Layer Canopy CHemistry and Exchange Model, MLC‐CHEM) to the GEOS‐Chem CTM and use this new framework to simulate O 3 fluxes over three north temperate forests. We compare results with in situ measurements from four field studies and with standalone, observationally constraine

Source type
Peer-reviewed study
DOI
10.1029/2024jd042092
Catalogue ID
SNmoht1ug0-ypwby3
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