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    Author(s): Leonidas G. Lavdas
    Date: 1997
    Source: Res. Note SE-4. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station. 2 p.
    Publication Series: Research Note (RN)
    Station: Southern Research Station
    PDF: View PDF  (16 KB)

    Description

    A simple and easily remembered method is described for estimating cloud ceiling height in the field. Estimating ceiling height provides the means to estimate stability class, a parameter used to help determine Dispersion Index and Low Visibility Occurrence Risk Index, indices used as smoke management aids. Stability class is also used as an input to VSMOKE, an atmospheric dispersion model used to estimate prescribed fire smoke effects on air quality and visibility.

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    Citation

    Lavdas, Leonidas G. 1997. Estimating Stability Class in the Field. Res. Note SE-4. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station. 2 p.

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    Keywords

    Cloud ceiling height, Dispersion Index, dispersion models, Low Visibility Occurrence Risk Index, prescribed burning, stability class.

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