Nicolas Villeneuve

Dr. Nicolas Villeneuve


Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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17 July 2013
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Book Chapter
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NVNicolas Villeneuve
Nicolas Villeneuve
PBPatrick Bachèlery
Patrick Bachèlery
JKJacobus Kemp
Jacobus Kemp

28 September 2024 in Geosciences
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Journal Article
Open access
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KWKerstin Wegner
Kerstin Wegner
VDVirginie Durand
Virginie Durand
NVNicolas Villeneuve
Nicolas Villeneuve
AMAnne Mangeney
Anne Mangeney
PKPhilippe Kowalski
Philippe Kowalski
FHFlorian Haas
Florian Haas
In this study, the geomorphological evolution of an inner flank of the Cratère Dolomieu at Piton de La Fournaise/La Réunion was investigated with the help of terrestrial laser scanning (TLS) data, terrestrial photogrammetric images, and historical webcam photographs. While TLS data and the terrestrial images were recorded during three field surveys, the study was also able to use historical webcam images that were installed for the monitoring of the volcanic activity inside the crater. Although the webcams were originally intended to be used only for visual monitoring of the area, at certain times they captured image pairs that could be analyzed using structure from motion (SfM) and subsequently processed to create digital terrain models (DTMs). With the help of all the data, the geomorphological evolution of selected areas of the crater was investigated in high temporal and spatial resolution. Surface changes were detected and quantified on scree slopes in the upper area of the crater as well as on scree slopes at the transition from the slope to the crater floor. In addition to their quantification, these changes could be assigned to individual geomorphological processes over time. The webcam photographs were a very important additional source of information here, as they allowed the observation period to be extended further into the past. Besides this, the webcam images made it possible to determine the exact dates at which geomorphological processes were active.