GNGTS 2016 - Atti del 35° Convegno Nazionale

274 GNGTS 2016 S essione 1.3 as expected the eruption duration increases if k decreases. In order to check more completely the model predictions, systematic measurements of the effusion rate as a function of time should be performed for specific lava flows, together with measurements of lava viscosity and vent geometry. Of course, processes other than mechanical erosion may contribute to modulate the flow rate in the volcanic conduit, such as thermal erosion, magma vesiculation, degassing, and crystallization. References Andronico, D., A. Cristaldi, and S. Scollo; 2008: The 4-5 September 2007 lava fountain at South-East Crater of Mt. Etna, Italy , J. Volcanol. Geotherm. Res., 173 (3), 325-328, doi:10.1016/j.jvolgeores.2008.02.004. Behncke, B., M. Neri, E. Pecora, and V. Zanon; 2006: The exceptional activity and growth of the Southeast Crater, Mount Etna (Italy) between 1996 and 2001 , Bull. Volcanol., 69 , 2: 149-173, doi:10.1007/s00445-006-0061-x. Calvari, S., and H. Pinkerton; 1999: Lava tube morphology on Etna and evidence for lava flow emplacement mechanisms , J. Volcanol. Geotherm. Res., 90 (3-4), 263-280, doi:10.1016/S0377-0273(99)00024-4. Dragoni, M., and S. Santini; 2007: Lava flow in tubes with elliptical cross sections , J. Volcanol. Geotherm. Res., 160 , 239-248, doi:10.1016/j.jvolgeores.2006.09.008. Dragoni, M., andA. Tallarico; 2009: Assumptions in the evaluation of lava effusion rates from heat radiation , Geophys. Res. Lett., 36 , L08302, doi:10.1029/2009GL037411. Garel, F., E. Kaminski, S. Tait, and A. Limare; 2012: An experimental study of the surface thermal signature of hot subaerial isoviscous gravity currents: Implications for thermal monitoring of lava flows and domes , J. Geophys. Res., 117 , B2205, doi:10.1029/2011JB008698. Greeley, R., S.A. Fagents, R.S. Harris, S.D. Kadel, D.A. Williams, and J.E. Guest; 1998: Erosion by flowing lava: Field evidence , J. Geophys. Res., 103 , 27,325-27,345, doi:10.1029/97JB03543. Harris, A.J.L., and S.M. Baloga; 2009: Lava discharge rates from satellite-measured heat flux , Geophys. Res. Lett., 36 , L19302, doi:10.1029/2009GL039717. Harris, A.J.L., S. Blake, D.A. Rothery, and N.F. Stevens; 1997: A chronology of the 1991 to 1993 Mount Etna eruption using advanced very high resolution radiometer data: Implications for real-time thermal volcano monitoring , J. Geophys. Res., 102 , 7985-8003. Hulme, G.; 1982: A review of lava flow processes related to the formation of lunar sinuous rilles , Geophys. Surv., 5 (3), 245-279, doi:10.1007/BF01454018. Kauahikaua, J.P., K.V. Cashman, T. Mattox, C.C. Heliker, K.A. Hon, M. Mangan, and C. Thornber; 1998: Observations on basaltic lava streams in tubes from Kilauea Volcano, island of Hawai’i , J. Geophys. Res., 103 (B11), 27,303- 27,323, doi:10.1029/97JB03576. Peterson, D.W., and D.A. Swanson; 1974: Observed formation of lava tubes during 1970-71 at Kilauea Volcano, Hawaii , Stud. Speleol., 2 (6), 209-222. Pieri, D.C., and S.M. Baloga; 1986: Eruption rate, area, and length relationships for some Hawaiian lava flows , J. Volcanol. Geotherm. Res., 30 ; 1-2: 29-45, doi:10.1016/0377-0273(86)90066-1. Vicari, A., G. Ganci, B. Behncke, A. Cappello, M. Neri, and C. Del Negro; 2011: Near-real-time forecasting of lava flow hazards during the 12-13 January 2011 Etna eruption , Geophys. Res. Lett., 38 , L13317, doi:10.1029/ 2011GL047545. Wadge, G.; 1981: The variation of magma discharge during basaltic eruptions , J. Volcanol. Geotherm. Res., 11 , (2), 139-168, doi:10.1016/0377-0273(81)90020-2. Yokoyama, I.; 1957: Energetics in active volcanoes . 2nd Paper, Bull. Earthquake Res. Inst., 35 , 75-97.