GM13.1/SC10/SSS12.25 ECSDigital Terrain Analysis of Anthropogenic Landscapes (co-organized)
|Convener: Paolo Tarolli | Co-Conveners: Wolfgang Schwanghart , Tobias Heckmann|
Wed, 20 Apr, 13:30–15:00
Humans are among the most prominent geomorphic agents, redistributing land surface, and causing drastic changes to the geomorphic organization of the landscape (e.g. intensive agriculture, urbanization), with direct consequences on land degradation and watershed response. High-resolution topography (HRT) can be useful for engineered landscapes, where the anthropic forcing related to human activities (e.g. urbanization, road network, and agricultural practices) may affect natural processes (Tarolli, 2014). HRT could play a really strategic and helpful role, through the recognition of human-induced geomorphic and anthropogenic features, and the connected erosion.
In this workshop, we will explore various techniques to extract and analyze anthropogenic features from high-resolution Digital Terrain Models (DTMs), and to account for the problems associated with such features in anthropogenic landscapes. We will use different softwares (e.g. Matlab® and commercial/open GIS), and we will go through the entire work flow including extracting the features and analyzing the induced processes.
Specifically, we will aim at:
1. Extracting channel levees in floodplains, and terraces walls on hillslopes applying the semi-automatic techniques by Sofia et al. (2014) and Tarolli et al. (2014);
2. Identifying terraces/road induced erosion/landslides according to the index proposed by Tarolli et al. (2015);
3. Automatic detection of bank erosion in agricultural drainage networks (Prosdocimi et al., 2015).
Basic knowledge in Matlab® and GIS, and the availability of a laptop are an advantage but they are not a requirement to attend the workshop. Attendants at the beginning of the workshop will receive teaching materials and guidelines for the proposed methodologies.
Upon course termination attendants will be awarded with a specific certificate of attendance signed by the EGU - GM division President and by the workshop Instructor.
Prosdocimi, M., Sofia, G., Dalla Fontana, G., Tarolli, P. 2015. Bank erosion in agricultural drainage networks: effectiveness of Structure-from-Motion for post-event analysis. Earth Surface Processes and Landforms. doi:10.1002/esp.3767.
Sofia G, Dalla Fontana G, Tarolli P. 2014. High-resolution topography and anthropogenic feature extraction: testing geomorphometric parameters in floodplains. Hydrological Processes 28: 2046-2061.
Tarolli P. 2014. High-resolution topography for understanding Earth surface processes: Opportunities and challenges. Geomorphology 216: 295-312.
Tarolli P, Preti F, Romano N. 2014. Terraced landscapes: From an old best practice to a potential hazard for soil degradation due to land abandonment. Anthropocene 6: 10-25.
Tarolli P, Sofia G, Calligaro S, Prosdocimi M, Preti F, Dalla Fontana G. 2015. Vineyards in terraced landscapes: new opportunities from lidar data. Land Degradation and Developement 26: 92–102.