The effect of the vertical source distribution on scalar statistics within and above a forest canopy

Little is known about in-canopy processes that may alter forest-atmosphere exchanges of trace gases and aerosols. To improve our understanding of in-canopy mixing, we use large-eddy simulation to study the effect of scalar source/sink distributions on scalar concentration moments, fluxes, and correlation coefficients within and above an ideal forest canopy. Scalars are emitted from: (1) the ground, (2) the canopy, and (3) both the ground and the canopy; a scalar is also deposited onto the canopy. All scalar concentration moments, fluxes, and correlation coefficients are affected by the source location/distribution, as is the scalar segregation intensity. We conclude that vertical source/sink distribution has a profound impact on scalar concentration profiles, fluxes, correlation coefficient, and scalar segregation.

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Copyright 2012 Springer.
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Author Edburg, S.
Stock, D.
Lamb, B.
Patton, Edward G.
Publisher UCAR/NCAR - Library
Publication Date 2012-03-01T00:00:00
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Topic Category geoscientificInformation
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Metadata Date 2025-07-15T21:36:47.152665
Metadata Record Identifier edu.ucar.opensky::articles:18181
Metadata Language eng; USA
Suggested Citation Edburg, S., Stock, D., Lamb, B., Patton, Edward G.. (2012). The effect of the vertical source distribution on scalar statistics within and above a forest canopy. UCAR/NCAR - Library. https://n2t.org/ark:/85065/d73n24zk. Accessed 10 August 2025.

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