Topographic data are fundamental to landscape characterization across the geosciences, for monitoring change and supporting process modelling. Over the last decade, the dominance of laser-based instruments for high resolution data collection has been challenged by advances in digital photogrammetry and computer vision, particularly in ‘structure from motion’ (SfM) algorithms, which offer a new paradigm to geoscientists.

High resolution topographic (HiRT) data are now obtained over spatial scales from millimetres to kilometres, and over durations of single events to lasting time series (e.g. from sub-second to decadal-duration time-lapse), allowing evaluation of dependencies between event magnitudes and frequencies. Such 4D-reconstruction capabilities enable new insight in diverse fields such as soil erosion, micro-topography reconstruction, volcanology, glaciology, landslide monitoring, and coastal and fluvial geomorphology. Furthermore, broad data integration from multiple sensors offers increasingly exciting opportunities.

This session will evaluate the advances in techniques to model topography and to study patterns of topographic change at multiple temporal and spatial scales. We invite contributions covering all aspects of HiRT reconstruction in the geosciences, and particularly those which transfer traditional expertise or demonstrate a significant advance enabled by novel datasets. We encourage contributions describing workflows that optimize data acquisition and post-processing to guarantee acceptable accuracies and to automate data application (e.g. geomorphic feature detection and tracking), and field-based experimental studies using novel multi-instrument and multi-scale methodologies. A major goal is to provide a cross-disciplinary exchange of experiences with modern technologies and data processing tools, to highlight their potentials, limitations and challenges in different environments.

Solicited speaker: Kuo-Jen Chang (National Taipei University of Technology) - UAS LiDAR data processing, quality assessment and geosciences prospects

Co-organized as CR2.11/G6.4/GI4.10/GMPV7.2/HS9.1.9/NH6.15/SSS12.12/TS11.7
Convener: Anette Eltner | Co-conveners: Mike James, Andreas Kaiser, Mark Smith, Jack Williams
| Mon, 08 Apr, 16:15–18:00
Room G2
| Attendance Tue, 09 Apr, 08:30–10:15
Hall X2

Attendance time: Tuesday, 9 April 2019, 08:30–10:15 | Hall X2

Chairperson: Jack Williams, Anette Eltner
X2.16 |
Jörn Profe and Raphael Steup
X2.17 |
James O'Connor, Mike Smith, and Mike R. James
X2.18 |
Hanne Hendrickx, Lars De Sloover, Alain De Wulf, Reynald Delaloye, Jan Nyssen, and Amaury Frankl
X2.19 |
Eun-Kyeong Choi, Sung-Wook Kim, Seung-Hyun Kim, and Kyu-Hwan Lee
X2.20 |
Marc Peruzzetto, Thomas Dewez, Clara Levy, Yannick Thiery, Gilles Grandjean, and Anne Mangeney
X2.22 |
Chris Williams, Andrew Hulbert, and Russell Lawley
X2.23 |
Tomas Laburda, Petr Kavka, David Zumr, Josef Krasa, Adam Tejkl, Nives Balenovic, Lisbeth Lolk Johannsen, Peter Strauss, Andreas Klik, Jan Devaty, and Michal Vrana
X2.25 |
| presentation
Lukas Graf, Mariano Moreno-de-las-Heras, Maurici Ruiz, Aleix Calsamiglia, Julián García-Comendador, Josep Fortesa, José A. López-Tarazón, and Joan Estrany
X2.26 |
A new hierarchical geomorphometric map of Ethiopia: preliminary results
Paolo Paron, Albina Cuomo, Francesco Dramis, Domenico Guida, and Vincenzo Palmieri
X2.28 |
| presentation
Wei Ji Leong and Huw Horgan
X2.29 |
Signe Schilling Hansen, Verner Brandbyge Ernstsen, Zyad Al-Hamdani, Ramona Baran, Manfred Niederwieser, Frank Steinbacher, and Aart Kroon
X2.31 |
Thomas Lelandais, Pierre Strzerzynski, Régis Mourgues, and David Peigné
X2.32 |
Mina Tabesh, Thomas Hoffmann, Stefan Vollmer, Holger Schüttrumpf, and Roy Frings
X2.33 |
Michael Wimmer, Markus Hollaus, Norbert Pfeifer, and Jürgen Komma
X2.34 |
Elena Belcore, Marco Piras, Alessandro Pezzoli, Giovanni Massazza, and Maurizio Rosso
X2.35 |
Drainage response to neotectonics movements in the Sabarmati River basin, Gujarat State, Western India
Nisarg bhatt, Vasu pancholi, Girish kothyari, Rajesh shah, and Raj Sunil Kandregula
X2.36 |
Sz-Jie Chen and Gwo-Shyh Song