EGU 2015. NH3.2 - Propagation and emplacement of large, rapid mass movements
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Dear Colleagues,
the next EGU General Assembly will be held in Vienna (Austria), 12 - 17 April 2015 (http://www.egu2015.eu/)
We would like to invite you to contribute to the SESSION NH3.2 - Propagation and emplacement of large, rapid mass movements - that is included in the General Theme "Landslide Hazards".
CONVENERS: Irene Manzella and Marina Pirulli
SESSION DESCRIPTION:
Rock avalanches and volcanic debris avalanches are characterized by extremely rapid, massive, flow-like motion of much greater mobility than could be predicted using frictional models. Among all geophysical gravitational flow phenomena, these are the most lethal and destructive: they can travel for several kilometres along volcanoes and mountains slopes and valleys. Their speed usually exceeds 100 km/hr and their volume is greater than a million cubic metres. The large quantity of mass in movement can develop a considerable energy, greater than the one developed by an earthquake of magnitude 6. This enormous energy developed in a short time has tremendous power of destruction that can cause irreparable damage, changes in the landscape and a large number of fatalities, destroying entire villages and burying thousands of people.
At present time the mechanisms involved in these phenomena are still for most part unknown. Several theories have been put forward to explain their large travel distance but despite the big effort done internationally, no general agreement on a comprehensive rheological law has been yet achieved and many questions remain to be answered.
A large variety of models exists to simulate propagation of rock and volcanic debris avalanches, but there is lack of a comprehensive and systematic study to compare and highlight their characteristics and limits. In this sense, several efforts are being made by the international scientific community; nevertheless, a lot of work still needs to be done to improve their application for rock and volcanic debris avalanches.
We invite contributions to this session on studies of the rheological behaviour, the propagation and emplacement of these types of movements including development of new codes or improvement of existing ones, physical modelling, back-analysis and benchmark exercises on historic field event and/or laboratory experiments.
DEADLINE FOR ABSTRACT: 7 January 2015
Please forward this on to colleagues who may be interested in this session as well.
Best regards,
Irene and Marina
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