An Observational Study of the Structure of the Nocturnal Boundary Layer

Larry Mahrt, R. C. Heald, D. H. Lenschow, B. B. Stankov, Ib Troen

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    In an effort to describe the basic vertical structure of the nocturnal boundary layer, observations from four experiments are analyzed. During the night, the depth of significant cooling appears to increase with time while the depth of the turbulence and height of the low level wind maximum tend to remain constant or decrease with time. Since the inversion layer extends above the low level wind maximum and shear is small in the region of the low level jet, the Richardson number reaches a maximum at the jet level and then decreases again with height. As a result, turbulence is observed to be a minimum at the height of the low level wind maximum and then increases again above this height.
    Original languageEnglish
    JournalBoundary-Layer Meteorology
    Volume17
    Issue number2
    Pages (from-to)247-264
    ISSN0006-8314
    DOIs
    Publication statusPublished - 1980

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