Susanne ETTINGER

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Missing PhotoMs. Susanne ETTINGER

Function: Post doctoral research fellow

Participation in ClerVolc program N°: 7

Main Research Unit: LMV

E-mail:

Presentation

I am a ClerVolc post-doctoral research fellow at the Laboratoire Magmas et Volcans, Université Blaise Pascal, Clermont-Ferrand. My general research interests are natural hazards analysis and vulnerability assessment. At present, I am working on improving the physical and systemic vulnerability assessment for the city of Arequipa, Peru, in terms of its exposure to volcanic and hydrogeological hazards.

Previously, I carried out my PhD at GEOLAB, Université Blaise Pascal, Clermont-Ferrand. In this context, I studied the geomorphological impact of lahars (debris flows of volcanic origin) at Cotopaxi volcano, Ecuador. The aim of this research was to reconstitute the most recent lahar event that occurred during the last eruption of Cotopaxi in 1877 by analyzing erosional and depositional landforms still preserved. The originality of this research lied in the fact that it considered the lahar impact along its flowpath, including the sediment production zone on the upper flanks of the volcano, the valleys as the transfer zone and the alluvial fan at the valley exit. For the data collection and interpretation, I applied methods from the fields of geography (GPS, GIS), geophysics (Ground Penetrating Radar) and informatics (numerical modeling with LaharZ). During my PhD, I spent several months in Ecuador working with scientists from the Instituto Geofisico de la Escuela Politécnica Nacional (IG-EPN, Quito) as well as experts from the Defensa Civil Cotopaxi (Latacunga). I also had the opportunity to stay for about one year in total in the United States in order to accomplish two missions: (1) develop a new algorithm to acknowledge for progressive bulking of lahars via the erosion of sediment in the valleys using LaharZ. This work was produced in collaboration with Steve Schilling at the Cascades Volcano Observatory (Vancouver, Washington); and (2) analyze the sediment structure of the alluvial fan in order to reconstitute flow processes and deduce accumulated sediment volume using Ground Penetrating Radar data. In this part of my research I collaborated with Sarah Kruse from the South Florida University (Tampa, Florida).

Research Topics

My research interests include: Hydrogeological hazards (in particular debris flows, flashfloods): trigger mechanisms, flow-propagation and behavior (erosion, deposition) and controlling factors; Sedimentology and sediment architecture of volcaniclastic deposits; Landscape response to extreme events; Pluri-disciplinary hazard assessment methods; Vulnerability assessment to natural hazards.

Publications

  • Ettinger, S., Mothes, P., Paris, R., Schilling, S. 2007. Lahar deposits on the Eastern flank of Cotopaxi volcano, Ecuador: sedimentology and implications for risk assessment. Géomorphologie: relief, processus, environment, n°3, p. 271-280.
  • Ettinger, S., Manville, V., Kruse, S., Paris, R., 2014. GPR-derived architecture of a lahar generated fan at Cotopaxi volcano, Ecuador. Geomorphology, In Press, DOI: 10.1016/j.geomorph.2014.01.013.
  • Ettinger, S., Mothes, P., Paris, R., Schilling, S., 2007. Lahar deposits on the Eastern flank of Cotopaxi volcano, Ecuador: sedimentology and implications for risk assessment. Géomorphologie: relief, processus, environment, n°3, p. 271-280.
Susanne ETTINGER

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