1.1 Research methods for landslide processes
At present, there is a large range of
methods for monitoring and
estimation the intensity of exogenous processes (Savvaidis, 2003; Tsaiet al. , 2012; Pradhan, 2017; Gafurov et al. , 2018; Usmanovet al. , 2018; Gupta & Shukla, 2018; Mertens et al. ,
2018). These mainly consist of collecting instrumental topographic
surveys and remote sensing data, allowing the study of slope processes
over several decades. In order to assess the rates of geomorphic
processes occurring on the reservoir shores, this study applied
alongside traditional methods (topographic field surveys) a set of
modern methods: i.e. terrestrial laser scanning (TLS), unmanned aerial
vehicle UAV, remote sensing and a global navigation satellite system
(GNSS). These techniques allow a quickly recording with a high accuracy
for determining of the shore process rates and displaced material
volumes by landslides. After a critical evaluation of the various
methods and a description of the study area, we report on the methods
applied in this study.