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http://dx.doi.org/10.9720/kseg.2015.1.83

Development of a Monitoring Method for Soil Erosion using an Ultrasonic Sensor (I)  

Nam, Koung-Hoon (Dept. of Earth and Environmental Sciences, Andong National University)
Lee, Jea-Hyoung (Dept. of Earth and Environmental Sciences, Andong National University)
Lee, Hak-Yun (Dept. of Earth and Environmental Sciences, Andong National University)
Jeong, Gyo-Cheol (Dept. of Earth and Environmental Sciences, Andong National University)
Publication Information
The Journal of Engineering Geology / v.25, no.1, 2015 , pp. 83-91 More about this Journal
Abstract
Few studies have investigated soil management policy and soil erosion measurement, whereas the occurrence of climate change requires the establishment of robust soil management systems and appropriate control of soil erosion. In this study, we developed a smart sensor for real-time quantitative measurements of soil erosion at the watershed scale. The smart sensor consists of an ultrasonic sensor, a rainfall meter, a solar cell, an RTU (remote terminal unit),and a CDMA (code division multiple access) and it was programmed to take a measurement every 30 minutes. The depths measured by the smart sensor were compared with data from terrestrial LiDAR. Experimental results showed a strong correlation in the depth of soil erosion between LiDAR and the ultrasonic sensor for the period from 22 August to 11 October 2013. Furthermore, the correlation coefficient between soil erosion depth (mm) and soil erosion volume (m3) was 0.9063 in the lower region of the watershed and is 0.9868 in the upper region. The proposed ultrasonic sensor technique can provide high-quality data for soil conservation and management systems in the future.
Keywords
soil erosion; monitoring; ultrasonic sensor; terrestrial LiDAR;
Citations & Related Records
Times Cited By KSCI : 8  (Citation Analysis)
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