Short Courses
ISL-NASL 2012 is pleased to offer a choice of two full-day short courses as part of the official symposium program. All courses will be held on Sunday, June 3 at the Fairmont Banff Springs Hotel.
- Slope Stability Monitoring using Satellite-Based and Ground-Based Radar
- High resolution DEM and Lidar techniques applied to landslides
Slope Stability Monitoring using Satellite-Based and Ground-Based Radar
Instructors: Michele Crosetto, A. Corsini, Giacomo Falorni and Paolo Farina
Time: 8:45 a.m. - 4:30 p.m.
Cost: Before April 1 - $400 (Students $225); On/After April 1 - $450 (Students $250)
The need for effective monitoring systems for both engineered and natural slopes is a critical component in risk management practices for urbanized areas threatened by active landslides, critical infrastructure management and mineral resources production. Radar interferometry, either from satellite platforms and ground-based systems has emerged in the last ten years as a leading edge tool for this purpose. Since the first scientific applications dated back to early 2000, radar interferometry has been extensively exploited for slope monitoring to get a better understanding of the spatial distribution of slope movements and for the provision of alerts in the event of progressive movements that can potentially lead to slope failure as well. The success of interferometric radar technique is attributed to its ability to measure slope movements with high sensitivity over wide areas in any weather conditions, obviating the need to install artificial reflectors. As a result, radar interferometry is today commonly used by prominent mining groups internationally, by civil protection authorities in developed countries and also by academics for the provision of high level consultancy to end users involved in landslide risk management.
This workshop will first address, thanks to the participation of an international expert from the academia, the main technical aspects to be known as a user interested in applying the technology to slope stability monitoring and will then present different case studies from experienced users and from some of the internationally leading companies in radar technology, IDS North America and TRE Canada.
The workshop represents a unique opportunity for engineers and geoscientists to learn of the technology and its important applications to slope stability monitoring.
High Resolution DEM and Lidar Techniques Applied to Landslides
Instructors: Dr. A. Abellan, Dr. M. Lato, Dr. T. Oppikofer, Prof. M. Jaboyedoff and Dr. M.-H. Derron
Time: 8:45 a.m. - 4:30 p.m.
Cost: Before April 1 - $400 (Students $225); On/After April 1 - $450 (Students $250)
High-resolution digital elevation models (HR-DEM) have become standard documents used to analyse landslides. The use of remotely sensed 3D data (e.g. laser scanners or Lidar) has greatly improved the accuracy and productivity of such documents. Nevertheless, the methods used to interpret these data are still not routine.
The aim of this workshop is to present the basics about Lidar techniques. The workshop will be mainly oriented toward the interpretation of Lidar data for landslides analysis. The use of Terrestrial Laser Scanning (TLS) and Airborne Laser Scanning (ALS) will be presented.
Applications: The use of ALS-DEMs (in particular as hillshade and 3D view) permits improved and optimized field mapping. The HR-DEM (ALS and TLS) enables precise 3D characterization of landslides, in particular of rock slopes. Discontinuity orientations as well as persistence, surfaces, roughness, etc. can be extracted from TSL point clouds and surface models. TLS, and in some cases ALS, can be used for monitoring landslide displacements and to detect rockfall scars by the comparison of temporal HR-DEMs.
An overview of the different software available for landslide analysis will be presented and demonstrated.
Structure of the workshop: The course will be divided in modules addressing the aspects based on several examples:
- Laser scanning techniques
Lidar principles, data acquisition, data processing, software packages - Lidar applied to landslides
Mapping (ALS), Characterizing (TLS and ALS), Monitoring (TLS and ALS) - Software dedicated to landslide analysis
- Case studies
