Extended Abstract (144K)9.1
Characteristics of Turbulent Exchange in and above an Old-Growth Forest
Kyaw Tha Paw U, Univ. of California, Davis, CA; and M. Falk, B. Yang, Y. S. Park, and M. J. Schroeder
Turbulence data were taken at one of the tallest forest canopies in the AmeriFlux network. This 500-year-old ecosystem has trees as tall as 67 m. Coherent structures were identified by their ramp patterns in temperature, carbon dioxide concentrations, and humidity. The scaling of these structures with mean wind shear was compared to results from other plant canopies. Canopy penetration of the structures as a function of stability was also compared to data from other plant canopies. Profiles of traditional turbulent statistics are discussed. Turbulent spectra and the cospectra are presented.
Session 9, Turbulence and Dispersion in Canopies Part 2
Thursday, 23 May 2002, 1:30 PM-4:00 PM
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