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Detailed Reference Information |
Turner, B.J., Leclerc, M.Y., Gauthier, M., Moore, K.E. and Fitzjarrald, D.R. (1994). Identification of turbulence structures above a forest canopy using a wavelet transform. Journal of Geophysical Research 99: doi: 10.1029/93JD02260. issn: 0148-0227. |
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The wavelet transform is used to identify scales of large coherent structures present in atmospheric turbulence above the subarctic forest at Schefferville. Individual coherent structures contributing to much of the exchange between the forest and the atmosphere are depicted in terms of both scale and location using contour diagrams of wavelet transform coefficients. Three typical case studies of turbulence and flux observations were selected to examine the physical characteristics of these flux-filled events and their evolution with distance away from the forest canopy. A wavelet transform spectral technique is applied to vertical velocity, temperature, and turbulent heat flux data observed over the sparse coniferous forest to extract the relative importance of each scale present in those data series. The scale of turbulence structures in relation with their characteristic spacing is discussed. |
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Abstract |
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Keywords
Meteorology and Atmospheric Dynamics, Turbulence, Meteorology and Atmospheric Dynamics, Instruments and techniques, Atmospheric Composition and Structure, Biosphere-atmosphere interactions |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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