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The wind in the willows: flows in forest canopies in complex terrain

Belcher, S. E., Harman, I. N. and Finnigan, J. J. (2012) The wind in the willows: flows in forest canopies in complex terrain. Annual Review of Fluid Mechanics, 44 (1). pp. 479-504. ISSN 1545-4479

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To link to this article DOI: 10.1146/annurev-fluid-120710-101036

Abstract/Summary

Forest canopies are important components of the terrestrial carbon budget, which has motivated a worldwide effort, FLUXNET, to measure CO2 exchange between forests and the atmosphere. These measurements are difficult to interpret and to scale up to estimate exchange across a landscape. Here we review the effects of complex terrain on the mean flow, turbulence, and scalar exchange in canopy flows, as exemplified by adjustment to forest edges and hills, including the effects of stable stratification. We focus on the fundamental fluid mechanics, in which developments in theory, measurements, and modeling, particularly through large-eddy simulation, are identifying important processes and providing scaling arguments. These developments set the stage for the development of predictive models that can be used in combination with measurements to estimate exchange at the landscape scale.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Science > School of Mathematical and Physical Sciences > Department of Meteorology
ID Code:26957
Publisher:Annual reviews

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