NH5	Volcanic hazards
		.1	Volcanic hazard from explosive eruptions

Convener: Baxter, P.J.
Co-Convener(s): Macedonio, G.
Friday, 23 April 1999
Lecture Room: Prins Willem-Alezander Foyer 2
Chairperson: Orsi, G.

08:30	MASTROLORENZO, G.; PETRONE, P.P.; PAGANO, M.;
		INCORONATO, A.; BALASCO, A.; FATTORE, L.; CANZANELLA, A.
	A.D. 79 eruption of Vesuvius (Italy): empacement mechanisms of
	pyroclastic flows and related effects on structures and people

08:45	ORSI, G.; CIVETTA, L.; DI VITO, M.; ISAIA, R.
	Volcanic hazard assessment at the restless Campi Flegri caldera, Italy

09:00	LONGO, A.; MACEDONIO, G.; SANTACROCE, R.
	Modelling Vesuvius magma chamber cooling and compositional evolution

09:15	ANDRONICO, D.; CIONI, R.; LONGO, A.; MACEDONIO, G.;
		SANTACROCE, R.; SBRANA, A.; SULPIZIO, R.
	Assessing the pyroclastic fall hazard at Vesuvius through field
	and numerical simulation data

09:30	QUARENI, F.
	Modelling the thermal state of Mt. Vesuvius from 1631 to 1944

09:45	MARIANELLI, P.; SBRANA, A.
	Scenario and insights on the hazard for violent strombolian
	eruptions at Vesuvius: the 1944 eruption example

10:00	PAPALE, P.
	Dynamics of magma ascent and fragmentation in large explosive eruptions

10:15	NERI, A.; MACEDONIO, G.; GIDASPOW, D.
	Multiparticle simulation of column collapse and pyroclastic flow
	emplacement during explosive eruptions

10:30	BREAK

Chairperson: Smith, A.L.

11:00	ESPOSTI ONGARO, T.; NERI, A.
	Numerical modelling of volcanic jets produced by explosive eruptions

11:15	SEYFRIED, R.; HERZOG, M.; TEXTOER, C.; OBERHUBER J.; GRAF, H.
	The influence of weather profile and grain size distribution on the
	dynamics of plinian eruption columns: a numerical study using ATHAM (Poster)

11:20	MARTEL, C.; DINGWELL, D.B.; SPIELER, O.; PICHAVANT, M.; WILKE, M.
	Foaming and fragmentation in rhyolitic melts

11:35	ZHANG, Y.
	Fragmentation, lava dome crumbling, and generation of pyroclastic flows

11:50	HOOPER, D.M.; MATTIOLI, G.S.
	Kinematic models of pyroclastic flow phenomena: application
	to Soufriere Hills Volcano, Montserrat

12:05	WADGE, G.; JACKSON, P.; WOODS, A.W.
	Simulation of the pyroclastic flow hazards from the eruption
	of Soufriere Hills Volcano, Montserrat

12:20	SMITH, A.L.; ROOBOL, M.J.; MATTIOLI, G.S.
	Volcanic hazard assessment of the dominantly pyroclastic volcanoes
	of the Lesser Antilles

12:35	ABRAMS, M.; FREDA, D.
	A computer model for volcano hazards visualization (Poster)

12:40	END OF SUB-SESSION