Chapter
Apr 26, 2012
Segmentation on Temperature Gradient Microstructure Data
Authors: Huey-Long Chen, A. Ramachandra Rao, and Miki HondzoAuthor Affiliations
Publication: Building Partnerships
Abstract
Several studies have suggested that small-scale fluid motion, scales smaller than a centimeter, influence the kinetics of biological and chemical particles in aquatic environments. One of the key intrinsic fluid flow parameters is the turbulent kinetic energy dissipation rate. The turbulent kinetic energy dissipation rate is obtainable through the indirect method of Batchelor curve fitting. The estimation procedure assumes homogeneous and isotropic turbulence at small scales. Therefore, the procedure requires partitioning each profile of non-stationary temperature gradient microstructure into stationary segments. In this study, ten profiles of temperature gradient microstructure measured in three inland lakes are analyzed by using a segmentation algorithm. Spectral changes in the temperature microstructure are compared using methods based on AR models and one based on wavelet analysis.
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© 2000 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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Huey-Long Chen
Tamkang University, Water Resources Management and Policy Research Center, Tamsui 25137, Taiwan
A. Ramachandra Rao
Purdue University, School of Civil Engineering, West Lafayette, IN 47907
Miki Hondzo
University of Minnesota, St. Anthony Falls Laboratory, Department of Civil Engineering, Minneapolis, MN 55414
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.