Skip to main content

Volcano dome growth, collapse and coupled processes

Objective

The construction of volcanoes, i.e. the intrusive and eruptive growth, can be intermittently interrupted by destructive events. Dome building volcanoes, in specific, grow by magma extrusion and are partially destroyed again, posing a significant hazard in form of pyroclastic flows and other processes. The explosion at Merapi (Indonesia) in 2010, and at Colima volcano (Mexico) in 2013 are good examples of associated dramatic topographic changes. There is only limited understanding of the deformation style of the dome and the stress changes within and beneath, because sophisticated geodetic methods are hazardous to operate and are even destroyed during eruptions. In VolCapse, small scale displacements (<1 m/yr) at dome building volcanoes will be quantified by new generation satellite radar data. Larger scale displacements (>.1 m/yr) will be determined by time-lapse camera arrays that allow the visual recording of volcano summits from different viewing geometries, together with photogrammetric and image correlation approaches. This displacement data of the studied volcanoes shall allow to develop statistical and numerical models to investigate (i) how dome displacements affect the further magma extrusion position, (ii) how large morphology changes in the volcano summit affect dome growth by topographic loading or unloading, (iii) how dome growth is affected by extrinsic triggers such as tectonic quakes, and (iv) how simultaneous displacement processes such as cooling, extrusion and gravity driven deformation interfere.
The P.I., with yearlong experience in modern geodetic methods, modelling and physical volcanology, herein describes the VolCapse project with the goal to enlighten our understanding of the coupled processes occurring during the different stages of volcano growth and collapse. Understanding such processes is essential for assessing volcanic hazards associated with dome building volcanoes worldwide.

Field of science

  • /natural sciences/mathematics/pure mathematics/geometry
  • /natural sciences/earth and related environmental sciences/geology/volcanology
  • /engineering and technology/electrical engineering, electronic engineering, information engineering/information engineering/telecommunications/radio technology/radar

Call for proposal

ERC-2014-CoG
See other projects for this call

Funding Scheme

ERC-COG - Consolidator Grant

Host institution

HELMHOLTZ ZENTRUM POTSDAM DEUTSCHESGEOFORSCHUNGSZENTRUM GFZ
Address
Telegrafenberg 17
14473 Potsdam
Germany
Activity type
Research Organisations
EU contribution
€ 1 955 355

Beneficiaries (1)

HELMHOLTZ ZENTRUM POTSDAM DEUTSCHESGEOFORSCHUNGSZENTRUM GFZ
Germany
EU contribution
€ 1 955 355
Address
Telegrafenberg 17
14473 Potsdam
Activity type
Research Organisations