Validation of the EROSION-3D Model through Measured Bathymetric Sediments

Abstract

The testing of a model performance is important and is also a challenging part of scientific work. In this paper, the results of the physically-based EROSION-3D (Jürgen Schmidt, Berlin, Germany) model were compared with trapped sediments in a small reservoir. The model was applied to simulate runoff-erosion processes in the Svacenický Creek catchment in the western part of the Slovak Republic. The model is sufficient to identify the areas vulnerable to erosion and deposition within the catchment. The volume of sediments was measured by a bathymetric field survey during three terrain journeys (in 2015, 2016, and 2017). The results of the model point to an underestimation of the actual processes by 30% to 80%. The initial soil moisture played an important role, and the results also revealed that rainfall events are able to erode and contribute to a significant part of sediments.

Mathematical modeling of soil erosion processes using a physically-based and empirical models: Case study of Slovakia and central Poland

“…The results from the model were compared with the bathymetric measurements in order to perform the validation of the physically-based EROSION-3D model. More information about the bathymetric measurements can be found in Németová et al (2020), Honek et al (2020). b)…”

“…Here, the soil input parameters were increased and decreased by about 10% in comparison with the reference (initial) state. The sensitivity analyses were performed in previous studies; for more information, see Honek et al (2020) or Németová et al (2020).…”

An Empirical Survey on Damages Caused by Erosional Depositions on Farmlands along Jimeta-Yola Road, Adamawa State Nigeria

“…Thus, the quantification of eroded material can be made by a variety of methods, objectives, size of the study area and the characteristics of the research group [20]. Ref [3] explained that the bathymetric measurement of sediment deposited in a reservoir is a suitable method for assessing the volume of eroded material in a study area. Hence, considering this fact simple bathymetric method was adopted for the purpose of this research work.…”

“…Soil erosion, as a process of the detachment, transport and accumulation of soil materials from any part of the Earth's surface, plays an important role in research since it assumes the most significant position among the individual degradation processes [1,2,3]. Soil erosion is widely recognized as a major environ-mental and agricultural problem affecting many parts of the world [4].…”

Monitoring Changes in the Morphology and Storage of a Small Water Reservoir: A Case Study from Vrbovce, Slovakia

“…Direct measurements of reservoir beds are among the most accurate methods and are especially useful in cases of small and medium-sized reser voirs. Multiple studies have already been conducted on this topic both worldwide (Ceylan et al, 2011;Merwade, 2009) and in Slovakia (Hlavčová et al, 2018;Honek et al, 2020;Kubinský et al, 2015;Németová et al, 2020;Valent et al, 2019).…”