Field Measurements of Soil Water Content at Shallow Depths for Landslide Monitoring
Open Access
- 12 October 2020
- journal article
- research article
- Published by MDPI AG in Geosciences
- Vol. 10 (10), 409
- https://doi.org/10.3390/geosciences10100409
Abstract
Monitoring changes in soil saturation is important for slope stability analyses. Soil moisture capacitive sensors have recently been developed; their response time is extremely fast, they require little maintenance, and they are relatively inexpensive. The use of low-cost sensors in landslide areas can allow the monitoring of large territories, but appropriate calibration is required. Installation in the field and the setting up of the monitoring network also require attention. In the ALCOTRA AD-VITAM project, the University of Genoa is involved in the development of a system, called LAMP, for the monitoring, analysis and forecasting of slides triggered by rainfalls. Multiple installations (along vertical alignments) of WaterScout sensors are placed in the nodes of the monitoring network. They provide real-time water content profiles in the shallow layers (typically in the upper meter) of a slope. With particular reference to these measurements, the present paper describes the reliability analysis of the instruments, the operations related to the sensor calibration and the installation phases for the monitoring networks. Finally, some of the data coming from a node, belonging to one of the five monitoring networks, are reported.Keywords
This publication has 26 references indexed in Scilit:
- 14 years of GPS tropospheric delays in the French–Italian border region: comparisons and first application in a case studyApplied Geomatics, 2015
- An Integrated Hydrological-Geotechnical Model in GIS for the Analysis and Prediction of Large-Scale Landslides Triggered by Rainfall EventsPublished by Springer Science and Business Media LLC ,2015
- Role of Vegetation on Slope Stability under Transient Unsaturated ConditionsProcedia Environmental Sciences, 2013
- Monitoring soil-water and displacement conditions leading to landslide occurrence in partially saturated claysGeomorphology, 2012
- Infinite slope stability under steady unsaturated seepage conditionsWater Resources Research, 2008
- A model for triggering mechanisms of shallow landslidesNatural Hazards and Earth System Sciences, 2008
- Effects of net stress and suction history on the small strain stiffness of a compacted clayey siltCanadian Geotechnical Journal, 2007
- Distributed modelling of shallow landslides triggered by intense rainfallNatural Hazards and Earth System Sciences, 2003
- Landslide triggering by rain infiltrationWater Resources Research, 2000
- The shear strength of unsaturated soilsCanadian Geotechnical Journal, 1978