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    Author(s): Robert R. Ziemer; Irving Goldberg; Norman A. MacGillivray
    Date: 1967
    Source: Res. Note PSW-RN-158. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 6 p
    Publication Series: Research Note (RN)
    Station: Pacific Southwest Research Station
    PDF: View PDF  (200 KB)

    Description

    Moisture measurements were made in three media?paraffin, water, saturated sand?with four neutron miusture meters, each containing 226-radium-beryllium, 227-actinium-beryllium, 238-plutonium-beryllium, or 241-americium-beryllium neutron sources. Variability in surface detection by the different sources may be due to differences in neutron sources, in length of source, or both.

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    Citation

    Ziemer, Robert R.; Goldberg, Irving; MacGillivray, Norman A. 1967. Measuring soil moisture near soil surface...minor differences due to neutron source type. Res. Note PSW-RN-158. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 6 p

    Keywords

    soil moisture measurement, neutron moisture meter soil moisture meter, soil surface moisture, vertical resolution, americium-beryllium, hydrometeorology

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