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Innovative analysis and use of high-resolution DTMs for quantitative interrogation of Earth-surface processes
journal contribution
posted on 2014-12-04, 13:50 authored by Paola Passalacqua, John HillierJohn Hillier, Paola TarolliThis is the era of digital landscapes; the widespread availability of powerful sensing technologies has revolutionized
the way it is possible to interrogate landscapes in order to understand the processes sculpting them. Vastly greater areas have now
been acquired at ‘high resolution’: currently tens of metres globally to millimetric precision and accuracy locally. This permits
geomorphic features to be visualized and analysed across the scales at which Earth-surface processes operate. Especially exciting
is the capturing of process dynamics in repeated surveying, which will only become more important with low-cost accessible data
generation through techniques such as Structure from Motion (SfM). But the key challenge remains; to interpret high resolution
Digital Terrain Models (DTMs), particularly by extracting geomorphic features in robust and objective ways and then linking the
observed features to the underlying physical processes. In response to the new data and challenges, recent years have seen improved
processing of raw data into DTMs, development of data fusion techniques, novel quantitative analysis of topographic data, and
innovative geomorphological mapping. The twelve papers collected in this volume sample this progress in interrogating Earthsurface
processes through the analysis of DTMs. They cover a wide range of disciplines and spatio-temporal scales, from landslide
prone landscapes, to agriculturally modified regions, to mountainous landscapes, and coastal zones. They all, however, showcase
the quantitative exploitation of information contained in high-resolution topographic data that we believe will underpin the improvement
of our understanding of many elements of Earth-surface processes. Most of the papers introduced here were first presented in a
conference session at the European Geosciences Union General Assembly in 2011.
History
School
- Social Sciences
Department
- Geography and Environment
Published in
EARTH SURFACE PROCESSES AND LANDFORMSVolume
39Issue
10Pages
1400 - 1403 (4)Citation
PASSALACQUA, P., HILLIER, J.K. and TAROLLI, P., 2014. Innovative analysis and use of high-resolution DTMs for quantitative interrogation of Earth-surface processes. Earth Surface Processes and Landforms, 39 (10), pp. 1400 - 1403.Publisher
© John Wiley & Sons, Ltd.Version
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2014Notes
This is the peer reviewed version of the following article: PASSALACQUA, P., HILLIER, J.K. and TAROLLI, P., 2014. Innovative analysis and use of high-resolution DTMs for quantitative interrogation of Earth-surface processes. Earth Surface Processes and Landforms, 39 (10), pp. 1400 - 1403., which has been published in final form at http://dx.doi.org/10.1002/esp.3616. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.ISSN
0197-9337Publisher version
Language
- en