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    Author(s): Robert B. Thomas
    Date: 1986
    Source: In: Monitoring to detect changes in water quality series, proceedings of the Budapest Symposium, July 1986, Budapest, Hungary; International Association of Hydrological Sciences Publication no. 157. Wallingford, UK; 79-88.
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (103 KB)

    Description

    Abstract - SALT (Selection At List Time) is a variable probability sampling scheme that provides unbiased estimates of suspended sediment yield and its variance. SALT performs better than standard schemes which are estimate variance. Sampling probabilities are based on a sediment rating function which promotes greater sampling intensity during periods of high sediment yield. When preparing to monitor using SALT, the quality of the existing suspended sediment rating data is an important consideration. SALT variance, based on an intensive data set from a river in northwestern California, showed greater sensitivity to the SALT sample size than to the quality of the calibration set

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    Citation

    Thomas, Robert B. 1986. Calibrating SALT: a sampling scheme to improve estimates of suspended sediment yield. In: Monitoring to detect changes in water quality series, proceedings of the Budapest Symposium, July 1986, Budapest, Hungary; International Association of Hydrological Sciences Publication no. 157. Wallingford, UK; 79-88.

    Keywords

    PSW4351, Selection At List Time, SALT, suspended sediment, measurement, probability-based samplin

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