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dc.contributor.authorWolfe, G. M.
dc.contributor.authorThornton, J. A.
dc.date.accessioned2020-09-15T18:25:20Z
dc.date.available2020-09-15T18:25:20Z
dc.date.issued2011-01-05
dc.description.abstractWe present the Chemistry of Atmosphere-Forest Exchange (CAFE) model, a vertically-resolved 1-D chemical transport model designed to probe the details of near-surface reactive gas exchange. CAFE integrates all key processes, including turbulent diffusion, emission, deposition and chemistry, throughout the forest canopy and mixed layer. CAFE utilizes the Master Chemical Mechanism (MCM) and is the first model of its kind to incorporate a suite of reactions for the oxidation of monoterpenes and sesquiterpenes, providing a more comprehensive description of the oxidative chemistry occurring within and above the forest. We use CAFE to simulate a young Ponderosa pine forest in the Sierra Nevada, CA. Utilizing meteorological constraints from the BEARPEX-2007 field campaign, we assess the sensitivity of modeled fluxes to parameterizations of diffusion, laminar sublayer resistance and radiation extinction. To characterize the general chemical environment of this forest, we also present modeled mixing ratio profiles of biogenic hydrocarbons, hydrogen oxides and reactive nitrogen. The vertical profiles of these species demonstrate a range of structures and gradients that reflect the interplay of physical and chemical processes within the forest canopy, which can influence net exchange.en_US
dc.description.sponsorshipThe authors thank R. Yatavelli for initial modeling work and R. Cohen, A. Goldstein and I. Faloona for helpful discussion. The authors are also grateful to M. McKay, D. Matross, L. Misson, and A. Goldstein for providing meteorological and forest structure data. We are also indebted to D. Taraborrelli, C. Stroud and an anonymous third referee for their critical review of and insightful comments on the manuscript. G. M. W. thanks the US-EPA STAR Fellowship under Assistance Agreement No. FP-91698901. This work has not been formally reviewed by EPA. The views expressed in this work are solely those of the authors, and EPA does not endorse any products or commercial services mentioned. The authors also acknowledge support from a National Science Foundation grant ATM-0633897.en_US
dc.description.urihttps://acp.copernicus.org/articles/11/77/2011/en_US
dc.format.extent25 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m23uvu-gin4
dc.identifier.citationWolfe, G. M. and Thornton, J. A.: The Chemistry of Atmosphere-Forest Exchange (CAFE) Model – Part 1: Model description and characterization, Atmos. Chem. Phys., 11, 77–101, https://doi.org/10.5194/acp-11-77-2011, 2011.en_US
dc.identifier.urihttps://doi.org/10.5194/acp-11-77-2011
dc.identifier.urihttp://hdl.handle.net/11603/19657
dc.language.isoen_USen_US
dc.publisherCopernicusen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Joint Center for Earth Systems Technology
dc.relation.ispartofUMBC Physics Department
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.rightsAttribution 3.0 Unported*
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/*
dc.titleThe Chemistry of Atmosphere-Forest Exchange (CAFE) Model – Part 1: Model description and characterizationen_US
dc.typeTexten_US


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This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
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