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    Rights statement: An edited version of this paper was published by AGU. Copyright (2021) American Geophysical Union. Otu-Larbi, F., Conte, A., Fares, S., Wild, O., & Ashworth, K. (2021). FORCAsT-gs: Importance of stomatal conductance parameterization to estimated ozone deposition velocity. Journal of Advances in Modeling Earth Systems, 13, e2021MS00258. DOI: 10.1029/2021MS002581. To view the published open abstract, go to http://dx.doi.org and enter the DOI.”

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FORCAsT-gs: Importance of stomatal conductance parameterisation to estimated ozone deposition velocity

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FORCAsT-gs: Importance of stomatal conductance parameterisation to estimated ozone deposition velocity. / Otu-Larbi, Frederick; Conte, Adriano ; Fares, Silvano et al.
In: Journal of Advances in Modeling Earth Systems, Vol. 13, No. 9, e2021MS002581, 30.09.2021.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

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Otu-Larbi F, Conte A, Fares S, Wild O, Ashworth K. FORCAsT-gs: Importance of stomatal conductance parameterisation to estimated ozone deposition velocity. Journal of Advances in Modeling Earth Systems. 2021 Sept 30;13(9):e2021MS002581. doi: 10.1029/2021MS002581

Author

Otu-Larbi, Frederick ; Conte, Adriano ; Fares, Silvano et al. / FORCAsT-gs : Importance of stomatal conductance parameterisation to estimated ozone deposition velocity. In: Journal of Advances in Modeling Earth Systems. 2021 ; Vol. 13, No. 9.

Bibtex

@article{9034466916e8441593d8f5086931d363,
title = "FORCAsT-gs: Importance of stomatal conductance parameterisation to estimated ozone deposition velocity",
abstract = "The role of stomata in regulating photosynthesis and transpiration, and hence governing global biogeochemical cycles and climate, is well-known. Less well-understood, however, is the importance of stomatal control to the exchange of other trace gases between terrestrial vegetation and the atmosphere. Yet these gases determine atmospheric composition, and hence air quality and climate, on scales ranging from local to global, and seconds to decades. Vegetation is a major sink for ground-level ozone via the process of dry deposition and the primary source of many biogenic volatile organic compounds (BVOCs). The rate of dry deposition is largely controlled by the rate of diffusion of a gas through the stomata, and this also governs the emission rate of some key BVOCs. It is critical therefore that canopy-atmosphere exchange models capture the physiological processes controlling stomatal conductance and the transfer of trace gases other than carbon dioxide and water vapour. We incorporate three of the most widely used coupled stomatal conductance-photosynthesis models into the one-dimensional multi-layer FORest Canopy-Atmosphere Transfer (FORCAsT1.0) model to assess the importance of choice of parameterisation on simulated ozone deposition rates. Modelled GPP and stomatal conductance across a broad range of ecosystems differ by up to a factor of two between the best and worst performing model configurations. This leads to divergences in seasonal and diel profiles of ozone deposition velocity of up to 30% and deposition rate of up to 13%, demonstrating that the choice of stomatal conductance parameterisation is critical in accurate quantification of ozone deposition.",
keywords = "Ozone deposition, gross primary productivity, Model parameterization, Stomatal conductance, ozone damage, forest ecosystems",
author = "Frederick Otu-Larbi and Adriano Conte and Silvano Fares and Oliver Wild and Kirsti Ashworth",
note = "An edited version of this paper was published by AGU. Copyright (2021) American Geophysical Union. Otu-Larbi, F., Conte, A., Fares, S., Wild, O., & Ashworth, K. (2021). FORCAsT-gs: Importance of stomatal conductance parameterization to estimated ozone deposition velocity. Journal of Advances in Modeling Earth Systems, 13, e2021MS00258. DOI: 10.1029/2021MS002581. To view the published open abstract, go to http://dx.doi.org and enter the DOI.”",
year = "2021",
month = sep,
day = "30",
doi = "10.1029/2021MS002581",
language = "English",
volume = "13",
journal = "Journal of Advances in Modeling Earth Systems",
number = "9",

}

RIS

TY - JOUR

T1 - FORCAsT-gs

T2 - Importance of stomatal conductance parameterisation to estimated ozone deposition velocity

AU - Otu-Larbi, Frederick

AU - Conte, Adriano

AU - Fares, Silvano

AU - Wild, Oliver

AU - Ashworth, Kirsti

N1 - An edited version of this paper was published by AGU. Copyright (2021) American Geophysical Union. Otu-Larbi, F., Conte, A., Fares, S., Wild, O., & Ashworth, K. (2021). FORCAsT-gs: Importance of stomatal conductance parameterization to estimated ozone deposition velocity. Journal of Advances in Modeling Earth Systems, 13, e2021MS00258. DOI: 10.1029/2021MS002581. To view the published open abstract, go to http://dx.doi.org and enter the DOI.”

PY - 2021/9/30

Y1 - 2021/9/30

N2 - The role of stomata in regulating photosynthesis and transpiration, and hence governing global biogeochemical cycles and climate, is well-known. Less well-understood, however, is the importance of stomatal control to the exchange of other trace gases between terrestrial vegetation and the atmosphere. Yet these gases determine atmospheric composition, and hence air quality and climate, on scales ranging from local to global, and seconds to decades. Vegetation is a major sink for ground-level ozone via the process of dry deposition and the primary source of many biogenic volatile organic compounds (BVOCs). The rate of dry deposition is largely controlled by the rate of diffusion of a gas through the stomata, and this also governs the emission rate of some key BVOCs. It is critical therefore that canopy-atmosphere exchange models capture the physiological processes controlling stomatal conductance and the transfer of trace gases other than carbon dioxide and water vapour. We incorporate three of the most widely used coupled stomatal conductance-photosynthesis models into the one-dimensional multi-layer FORest Canopy-Atmosphere Transfer (FORCAsT1.0) model to assess the importance of choice of parameterisation on simulated ozone deposition rates. Modelled GPP and stomatal conductance across a broad range of ecosystems differ by up to a factor of two between the best and worst performing model configurations. This leads to divergences in seasonal and diel profiles of ozone deposition velocity of up to 30% and deposition rate of up to 13%, demonstrating that the choice of stomatal conductance parameterisation is critical in accurate quantification of ozone deposition.

AB - The role of stomata in regulating photosynthesis and transpiration, and hence governing global biogeochemical cycles and climate, is well-known. Less well-understood, however, is the importance of stomatal control to the exchange of other trace gases between terrestrial vegetation and the atmosphere. Yet these gases determine atmospheric composition, and hence air quality and climate, on scales ranging from local to global, and seconds to decades. Vegetation is a major sink for ground-level ozone via the process of dry deposition and the primary source of many biogenic volatile organic compounds (BVOCs). The rate of dry deposition is largely controlled by the rate of diffusion of a gas through the stomata, and this also governs the emission rate of some key BVOCs. It is critical therefore that canopy-atmosphere exchange models capture the physiological processes controlling stomatal conductance and the transfer of trace gases other than carbon dioxide and water vapour. We incorporate three of the most widely used coupled stomatal conductance-photosynthesis models into the one-dimensional multi-layer FORest Canopy-Atmosphere Transfer (FORCAsT1.0) model to assess the importance of choice of parameterisation on simulated ozone deposition rates. Modelled GPP and stomatal conductance across a broad range of ecosystems differ by up to a factor of two between the best and worst performing model configurations. This leads to divergences in seasonal and diel profiles of ozone deposition velocity of up to 30% and deposition rate of up to 13%, demonstrating that the choice of stomatal conductance parameterisation is critical in accurate quantification of ozone deposition.

KW - Ozone deposition

KW - gross primary productivity

KW - Model parameterization

KW - Stomatal conductance

KW - ozone damage

KW - forest ecosystems

U2 - 10.1029/2021MS002581

DO - 10.1029/2021MS002581

M3 - Journal article

VL - 13

JO - Journal of Advances in Modeling Earth Systems

JF - Journal of Advances in Modeling Earth Systems

IS - 9

M1 - e2021MS002581

ER -