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Updated: Apr 19, 2026

In Situ Soil Moisture Sensors in Undisturbed Soils
Published on: November 18, 2022
Intermittency of aeolian saltation
Zhen-Ting Wang1, Chun-Lai Zhang, Hong-Tao Wang
1State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, 100875, Beijing, P.R. China, wangzht@lzu.edu.cn.
Abstract:
Saltation motion of sand grains in a steady wind was measured using a high-speed camera at very high frequency in a wind tunnel. A Heaviside-type function was defined to quantificationally describe an inherent property of saltation, i.e. intermittency. Kurtosis and periodicity of state function are statistical manifestations of intermittency. In addition, the strong autocorrelation of time series of volume concentration clearly confirms that saltation is not a completely random process at the timescale of subsecond. Formation mechanism, especially turbulent structures responsible for intermittent saltation, remains to be revealed from the viewpoint of classical mechanics.
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