Advances in Modelling Radiative Transfer, Heat Storage and Turbulent Transport to Evaluate CO2, Heat and Water Fluxes Over Broad‐Leaved Forests: The CanVeg2 Model.
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| Title: | Advances in Modelling Radiative Transfer, Heat Storage and Turbulent Transport to Evaluate CO |
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| Authors: | Béland, Martin1 (AUTHOR) martin.beland@scg.ulaval.ca, Bonan, Gordon B.2 (AUTHOR), Meyers, Tilden P.3 (AUTHOR), Munger, J. William4 (AUTHOR), Kobayashi, Hideki5 (AUTHOR), Baldocchi, Dennis6 (AUTHOR) |
| Source: | Global Change Biology. Apr2026, Vol. 32 Issue 4, p1-26. 26p. |
| Subjects: | Radiative transfer, Heat storage, Atmospheric carbon dioxide, Plant canopies, Turbulent flow, Deciduous forests, Water vapor transport |
| Abstract: | Multilayer canopy models have been developed for several decades, and interest in this model class remains high despite their complexity because of their multiple advantages over big‐leaf models. Nowadays, a number of scientific and technological advancements favour improving and evaluating these models. First, the advent of lidar technology has enabled detailed mapping of leaves and stems in forest canopies and enhanced the modelling of absorbed solar radiation by both elements within a canopy. Second, long‐time series of eddy covariance measurements are available for model evaluation, capturing years with extreme conditions like droughts. Here we present a new version of the CanVeg model (CanVeg2) with three main modifications: (1) radiative transfer modelling using 3D ray tracing and ground lidar, (2) the addition of a stem energy balance module and (3) the use of a higher order closure model to provide profiles of horizontal wind velocity and variance in vertical wind velocity. We evaluate the CanVeg2 model at five broadleaf forest sites with contrasting canopy structures using long term eddy covariance records, and at two of the sites, soil temperature profiles and scalar vertical profiles. The modelled latent heat and CO2 flux densities closely matched the eddy covariance measurements. The sensible heat flux density had lower coefficients of determination across sites. The modelled soil heat flux densities were notably higher than the measurements at the three sites where this flux is measured. Divergences between modelled and measured scalars in the lower canopy layers suggest the model would benefit from improved information on soil‐litter moisture content. The favourable results obtained in the model evaluation suggest it may be useful towards addressing new science questions by enabling the estimation of certain canopy states nearly impossible to measure at the canopy level like vertically resolved leaf and stem temperatures and to study the interactions between highly interconnected biophysical and physiological processes. [ABSTRACT FROM AUTHOR] |
| Copyright of Global Change Biology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 193365290 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Advances in Modelling Radiative Transfer, Heat Storage and Turbulent Transport to Evaluate CO<subscript>2</subscript>, Heat and Water Fluxes Over Broad‐Leaved Forests: The CanVeg2 Model. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Béland%2C+Martin%22">Béland, Martin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> martin.beland@scg.ulaval.ca</i><br /><searchLink fieldCode="AR" term="%22Bonan%2C+Gordon+B%2E%22">Bonan, Gordon B.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Meyers%2C+Tilden+P%2E%22">Meyers, Tilden P.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Munger%2C+J%2E+William%22">Munger, J. William</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kobayashi%2C+Hideki%22">Kobayashi, Hideki</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Baldocchi%2C+Dennis%22">Baldocchi, Dennis</searchLink><relatesTo>6</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Global+Change+Biology%22">Global Change Biology</searchLink>. Apr2026, Vol. 32 Issue 4, p1-26. 26p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Radiative+transfer%22">Radiative transfer</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+storage%22">Heat storage</searchLink><br /><searchLink fieldCode="DE" term="%22Atmospheric+carbon+dioxide%22">Atmospheric carbon dioxide</searchLink><br /><searchLink fieldCode="DE" term="%22Plant+canopies%22">Plant canopies</searchLink><br /><searchLink fieldCode="DE" term="%22Turbulent+flow%22">Turbulent flow</searchLink><br /><searchLink fieldCode="DE" term="%22Deciduous+forests%22">Deciduous forests</searchLink><br /><searchLink fieldCode="DE" term="%22Water+vapor+transport%22">Water vapor transport</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Multilayer canopy models have been developed for several decades, and interest in this model class remains high despite their complexity because of their multiple advantages over big‐leaf models. Nowadays, a number of scientific and technological advancements favour improving and evaluating these models. First, the advent of lidar technology has enabled detailed mapping of leaves and stems in forest canopies and enhanced the modelling of absorbed solar radiation by both elements within a canopy. Second, long‐time series of eddy covariance measurements are available for model evaluation, capturing years with extreme conditions like droughts. Here we present a new version of the CanVeg model (CanVeg2) with three main modifications: (1) radiative transfer modelling using 3D ray tracing and ground lidar, (2) the addition of a stem energy balance module and (3) the use of a higher order closure model to provide profiles of horizontal wind velocity and variance in vertical wind velocity. We evaluate the CanVeg2 model at five broadleaf forest sites with contrasting canopy structures using long term eddy covariance records, and at two of the sites, soil temperature profiles and scalar vertical profiles. The modelled latent heat and CO2 flux densities closely matched the eddy covariance measurements. The sensible heat flux density had lower coefficients of determination across sites. The modelled soil heat flux densities were notably higher than the measurements at the three sites where this flux is measured. Divergences between modelled and measured scalars in the lower canopy layers suggest the model would benefit from improved information on soil‐litter moisture content. The favourable results obtained in the model evaluation suggest it may be useful towards addressing new science questions by enabling the estimation of certain canopy states nearly impossible to measure at the canopy level like vertically resolved leaf and stem temperatures and to study the interactions between highly interconnected biophysical and physiological processes. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Global Change Biology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1111/gcb.70867 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 26 StartPage: 1 Subjects: – SubjectFull: Radiative transfer Type: general – SubjectFull: Heat storage Type: general – SubjectFull: Atmospheric carbon dioxide Type: general – SubjectFull: Plant canopies Type: general – SubjectFull: Turbulent flow Type: general – SubjectFull: Deciduous forests Type: general – SubjectFull: Water vapor transport Type: general Titles: – TitleFull: Advances in Modelling Radiative Transfer, Heat Storage and Turbulent Transport to Evaluate CO2, Heat and Water Fluxes Over Broad‐Leaved Forests: The CanVeg2 Model. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Béland, Martin – PersonEntity: Name: NameFull: Bonan, Gordon B. – PersonEntity: Name: NameFull: Meyers, Tilden P. – PersonEntity: Name: NameFull: Munger, J. William – PersonEntity: Name: NameFull: Kobayashi, Hideki – PersonEntity: Name: NameFull: Baldocchi, Dennis IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 13541013 Numbering: – Type: volume Value: 32 – Type: issue Value: 4 Titles: – TitleFull: Global Change Biology Type: main |
| ResultId | 1 |
