Observed relationships between microstructure patches and the gradient Richardson number in a thermally stratified lake

Peter Yeates, A. Gómez-Giraldo, Jorg Imberger

    Research output: Contribution to journalArticle

    4 Citations (Scopus)

    Abstract

    Microstructure profiles of velocity and temperature were collected in Lake Kinneret during the summer months of 1997, 1998, 1999 and 2001 using the Portable Flux Profiler. The profiles were analysed to determine the turbulent properties within statistically homogeneous microstructure patches that were identified in each profile. The nature of the turbulent properties and their distribution is discussed in terms of the dominant forcing mechanisms that exist through the water column. It was found that the properties of binned patch data collapsed reasonably into log-linear functions of the gradient Richardson number Rig with changes in behaviour at Rig = 0. 03 and 0. 2. For Rig <0. 03 the observations were dominated by boundary turbulence and law-of-the-wall approximations were shown to provide a good description of the observed data near the lake surface. For 0. 03
    Original languageEnglish
    Pages (from-to)205-226
    JournalEnvironmental Fluid Mechanics
    Volume13
    Issue number3
    DOIs
    Publication statusPublished - 2013

    Fingerprint Dive into the research topics of 'Observed relationships between microstructure patches and the gradient Richardson number in a thermally stratified lake'. Together they form a unique fingerprint.

    Cite this