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Research Note
Title: Measuring soil moisture near soil surface...minor differences due to neutron source type
Author: Ziemer, Robert R.; Goldberg, Irving; MacGillivray, Norman A.
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
Station ID: RN-PSW-158
Description: Moisture measurements were made in three media–paraffin, water, saturated sand–with four neutron moisture 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.
Keywords: soil moisture measurement; neutron moisture meter soil moisture meter; soil surface moisture; vertical resolution; americium-beryllium; hydrometeorology
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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.