BIOGRAPHICAL SKETCH BACK TO EXPLOSIVE VOLCANISM RESEARCH AT ASU

Amanda Clarke

RESEARCH INTERESTS

Physical Volcanology

Eruption prediction and hazards assessment

Multi-phase fluid mechanics of viscous magmas and gas/solid mixtures

Volcano deformation

PROFESSIONAL APPOINTMENTS

2003 – present: Assistant Professor, Department of Geological Sciences, Arizona State University, Tempe, AZ

2002-2003: Royal Society Postdoctoral Research Fellow, University of Bristol, Bristol, UK

PROFESSIONAL PREPARATION

Pennsylvania State University	Geosciences	Ph.D	2002
University of Notre Dame	Aerospace Engineering/Philosophy	B.S./B.A.	1994

COURSES

Advanced Field Geology: Modern and Ancient Volcanoes

Fluid Mechanics for Geologists

Volcanoes for Lunch seminar

Advanced Volcanology

Introduction to Geology

CURRENT GRADUATE STUDENTS (Arizona State University):

Brittany Brand, PhD candidate (co-advisee)

Kirsten Chojnicki, PhD student

Kimberly Genareau, PhD candidate (co-advisee)

Angela Magee, MS candidate

GRADUATED STUDENTS (Arizona State University, except where noted)

Kristina Diller, MS 2006

Kirsten Chojnicki, MS 2006

Spencer Riley, MS 2006

Sally Stephens, MSci 2003 (University of Bristol, co-advisee)

REFEREED PUBLICATIONS (*indicates student advisees)

Clarke, A.B. S. Stephens*, R. Teasdale, R.S.J. Sparks, K. Diller^*, 2007. Petrological constraints on the decompression history of magma prior to Vulcanian explosions at the Soufrière Hills volcano, Montserrat. J. of Volcanol. Geotherm. Res. v. 161, 261-274. pdf

KN Chojnicki*, Clarke, A B, JC Phillips, 2006. A shock-tube investigation of the dynamics of gas particle mixtures: implications for explosive volcanic eruptions. Geophys. Res. Lett. 33,L15309, doi:10.1029/2006GL026414. pdf

Diller*, K.D., Clarke, A.B., Voight, B. Neri, A., 2006. Mechanisms for Conduit Plug Formation: implications for Vulcanian explosions. Geophys. Res. Lett. 33, L20302, doi:10.1029/2006GL027391. pdf

Voight et al. 2006. Unprecedented pressure increase in deep magma reservoir triggered by lava-dome collapse. Geophys. Res. Lett. 33 L03312, doi: 10.1029/2005GL024870. pdf

Widiwijayanti, C., Clarke, A.B., Elsworth, D., Voight, B., 2005. Geodetic Constraints on the Shallow Magma System at Soufrière Hills Volcano, Montserrat. Geophys. Res. Lett. 32, L11309, doi:10.1029/2005GL022846. pdf

Clarke, A.B., A. Neri, G. Macedonio, B. Voight, T.H. Druitt, 2003. Computational modelling of the transient dynamics of the August 1997 Vulcanian explosions at Soufrière Hills volcano, Montserrat: influence of initial conduit conditions on near-vent pyroclastic dispersal. In: Druitt, T.H. & Kokelaar, B.P. (eds) The eruption of Soufrière Hills Volcano, Montserrat, from 1995 to 1999. Geological Society, London, Memoir.

Druitt, T.H., S. Young, B. Baptie, E. Calder, A. Clarke, P. Cole, C. Harford, R. Herd, R. Luckett, G. Ryan, S. Sparks, B. Voight, 2003. Episodes of cyclic Vulcanian explosive activity with fountain collapse at Soufrière Hills volcano, Montserrat. In: Druitt, T.H. & Kokelaar, B.P. (eds) The eruption of Soufrière Hills Volcano, Montserrat, from 1995 to 1999. Geological Society, London, Memoir.

Cole, P.D., E.S. Calder, R.S.J. Sparks, A.B. Clarke, T.H. Druitt, S.R. Young, R.A. Herd, C.L. Harford, G.E. Norton, R.E.A. Robertson, 2003. Pyroclastic flow deposits formed during 1996-99 at Soufrière Hills volcano, Montserrat. In: Druitt, T.H. & Kokelaar, B.P. (eds) The eruption of Soufrière Hills Volcano, Montserrat, from 1995 to 1999. Geological Society, London, Memoir.

Loughlin, S.C., Calder, E.S., Clarke, A.B., Cole, P.D., Luckett, R., Mangan, M.T., Pyle, D.M., Sparks, R.S.J., Voght, B. & Watts, R.B. 2003. Pyroclastic flows generated by the 25 June 1997 dome collapse, Soufrière Hills volcano, Montserrat. In: Druitt, T.H. & Kokelaar, B.P. (eds) The eruption of Soufrière Hills Volcano, Montserrat, from 1995 to 1999. Geological Society, London, Memoir.

Clarke, A.B., A. Neri, G. Macedonio, B. Voight, 2002. Transient dynamics of Vulcanian explosions and column collapse. Nature, v. 415, 897-901. pdf

Clarke, AB, Neri, A, Voight, B, Macedonio, G, Druitt, TH, 2001. Computational modeling of the transient dynamics of the August 1997 vulcanian explosions at Soufriere Hills Volcano, Montserrat: Influence of initial conduit conditions on near-vent pyroclastic dispersal. Volcano Simulation Group, Gruppo Nazionale per la Vulcanologia, Istituto Nazionale di Geofisica e Vulcanologia. VSG Report No. 2001-5, 59 pp.

Clarke, A.B. and B. Voight, 2000. Pyroclastic current dynamic pressures from aerodynamics of tree or pole blow-down. J. Volc. Geothermal Res., v. 100, No. 1 - 4, 395-412. pdf

Watson, I.M, C.M.M. Oppenheimer, B. Voight, P.W. Francis, A. Clarke, J. Stix, A. D. Miller, D. Pyle, M.R. Burton, S.R. Young, G. Norton, S. Loughlin, B. Darroux, 2000. The relationship between degassing and ground deformation at the Soufrière Hills Volcano, Montserrat. J. Volc. Geothermal Res., v.98, no.1-4, 117-126. pdf

Voight B., R.S.J. Sparks, A.D. Miller, R.C. Stewart, R.P. Hoblitt, A.B. Clarke, J. Ewart, and MVO Staff, 1999. Magma flow instability and cyclic activity at Soufrière Hills Volcano, Montserrat, SCIENCE, 283 (5405), 1138-1142. pdf

Voight, B., R.P. Hoblitt, A.B. Clarke, A.B. Lockhart, A.D. Miller, L. Lynch, and J. McMahon, 1998. Remarkable cyclic ground deformation monitored in real time on Montserrat and its use in eruption forecasting, Geophys. Res. Lett., v. 25, No. 18, 3405-3408. pdf

MANUSCRIPTS ACCEPTED OR IN PRESS

Genareau*, K, Hervig, R and Clarke, A, in press. Geochemical variations in late-stage growth of volcanic phenocrysts revealed by SIMS depth-profiling. American Mineralogist.

MANUSCRIPTS IN REVIEW

Clarke, AB, Phillips, JC, Chojnicki*, KN, in review. An Investigation of the Dynamics of Vulcanian Eruptions using Laboratory Analogue Experiments and Scaling Analysis.

Brand*, B D, AB Clarke, SC Semken, C Sandoval, in review. Dynamics of a Phreatomagmatic Eruption at Narbona Pass Volcano, Navajo Volcanic Field, Navajo Nation, New Mexico. Bull. Volcanol.

T.Esposti Ongaro, A.Clarke, A.Neri, B.Voight, C. Widiwijayanti, in review. Fluid dynamics of the 1997 Boxing Day volcanic blast on Montserrat, W.I. J. Geophys. Res.

OTHER PUBLICATIONS

Montserrat Volcano Observatory Staff, 1997. Special Report 04: The explosive eruptions of August 1997.

Montserrat Volcano Observatory Staff, 1997. Special Report 03: The pyroclastic flow of June 25, 1997.

Clarke A.B., D. Hidayat, B. Voight, 1997. Navier-Stokes equations revisited: A review of the physics of explosive volcanism. IAVCEI Bulletin.

RECENT ABSTRACTS (* indicates student advisees)

Bowles*, Z.R., Clarke, A.B., Greeley, R. (2006), Lava Flow Lengths and Historic Eruptive Parameters: Implications for the Volcanic History of the Batamote Mountains, Ajo, Arizona, Eos Trans. AGU, 87(52), Fall Meet. Suppl., Abstract V53C-1758.

Clarke, A B, JC Phillips, KN Chojnicki* (2006), Investigating the dynamics of Vulcanian explosions: scaled laboratory experiments of particle-laden puffs, Eos Trans. AGU, 87(52), Fall Meet. Suppl., Abstract V33E-03.

Brand*, B., Clarke, AB (2006), Mega-features at the Table Rock phreatomagmatic complex in Christmas Valley, Oregon; Law of original horizontality need not apply, Eos Trans. AGU, 87(52), Fall Meet. Suppl., Abstract V43C-1826.

Genareau*, K., Clarke, A.B., Hervig, R.L. (2006), Pre-Eruptive Changes in Physical Conduit Dynamics Recorded in the Final Stage of Phenocryst Growth, Eos Trans. AGU, 87(52), Fall Meet. Suppl., Abstract V24A-04.

Clarke, A B, JC Phillips, KN Chojnicki* (2005), Investigating the dynamics of Vulcanian explosions using scaled laboratory experiments, Eos Trans. AGU, 86(52), Fall Meet. Suppl., Abstract V31D-0654.

KN Chojnicki*, Clarke, A B, JC Phillips (2005), Exploring the Behavior of Solid/Gas Mixtures via Shock-Tube Experiments With Relevance to Vulcanian Eruptions, Eos Trans. AGU, 86(52), Fall Meet. Suppl., Abstract V31D-0653.

Diller*, K. A.B. Clarke, B. Voight, A. Neri, (2005), Integrating Fragmentation Criteria with Dynamic Conduit Models: the Significance of Syn-eruptive Bubble Expansion in Vulcanian Explosions, Eos Trans. AGU, 86(52), Fall Meet. Suppl., Abstract V53A-1542.

Riley*, S D, A Clarke, R Watts, CE Suh (2005), Investigating Mount Cameroon^'s Magma Chamber System, Eos Trans. AGU, 86(52), Fall Meet. Suppl., Abstract V21D-0653.

Brand*, B D, AB Clarke, SC Semken, C Sandoval, (2005), Dynamics of a Phreatomagmatic Eruption at Narbona Pass Volcano, Navajo Volcanic Field, Navajo Nation, New Mexico, Eos Trans. AGU, 86(52), Fall Meet. Suppl., Abstract V44B-02.

Ongaro, T E, A Clarke, A Neri, B Voight, C Widiwijayanti, (2005), A new high-performance 3D multiphase flow code to simulate volcanic blasts and pyroclastic density currents: example from the Boxing Day event, Montserrat, Eos Trans. AGU, 86(52), Fall Meet. Suppl., Abstract V31D-0645.

Genareau*, K, A Clarke, R Hervig, (2005), Soufrière Hills Plagioclase: Postcards From the Edge, Eos Trans. AGU, 86(52), Fall Meet. Suppl., Abstract V13B-0534.

Clarke, A.B. S. Stephens^*, R. Teasdale, R.S.J. Sparks, K. Diller^*, 2005 (Keynote). Petrological constraints on dynamic eruptive processes: reconciling data and numerical formulations. Soufrière Hills Volcano -- Ten-Years On Scientific Conference. Montserrat, B.W.I.

Genareau*, K., A.B. Clarke, and R. Hervig, 2005. Conduit processes revealed by surface analysis of plagioclase phenocrysts? Soufrière Hills Volcano -- Ten-Years On Scientific Conference. Montserrat, B.W.I.

Diller*, K. A.B. Clarke, A. Neri, and B. Voight, 2005. Influence of conduit processes on explosion dynamics: Integrating field data and numerical models. Soufrière Hills Volcano -- Ten-Years On Scientific Conference. Montserrat, B.W.I.

Esposti-Ongaro,T. A.B. Clarke, A. Neri, B. Voight, 2005. Multiphase numerical simulations of directed blasts and their pyroclastic density currents: pressurization and topographic controls for the December 1997 Boxing Day event, Montserrat, and the 1902 events at Montagne Pelée, Martinique. Soufrière Hills Volcano -- Ten-Years On Scientific Conference. Montserrat, B.W.I.

Voight, B. et al. 2005. CALIPSO Borehole Monitoring Project at Soufrière Hills Volcano, Montserrat, BWI: Overview, and Response of Magma Reservoir to Prodigious Dome Collapse. Soufrière Hills Volcano -- Ten-Years On Scientific Conference. Montserrat, B.W.I.

Widiwijayanti, C. A.B. Clarke, D. Elsworth and B. Voight, 2005. Geodetic Constraints on the Shallow Magma System at Soufrière Hills Volcano, Montserrat. Soufrière Hills Volcano -- Ten-Years On Scientific Conference. Montserrat, B.W.I.

Phillips, J.C., A.B. Clarke, M.D. Fletcher. 2004. Bubble-Driven Conduit Convection. IAVCEI Congress, Pucon, Chile.

Chojnicki*, K.N., A.B. Clarke, J.C. Phillips, J. Monninger*. 2004. Exploring the behavior of solid/gas mixtures via analog shock-tube experiments. IAVCEI Congress, Pucon, Chile.

Diller*, K., A.B. Clarke, A. Neri, B. Voight. 2004. Conduit flow characteristics and the impact they have on explosive eruptions. IAVCEI Congress, Pucon, Chile.

Riley*, S.D., A.B. Clarke, R.Watts, and C.E. Suh. 2004. Deformation measurements on Mount Cameroon. IAVCEI Congress, Pucon, Chile.

Stephens*, S., A.B. Clarke, R.S.J. Sparks, R. Teasdale. 2004. Petrological constraints on the decompression history of magma prior to Vulcanian explosions at the Soufrière Hills volcano, Montserrat. IAVCEI Congress, Pucon, Chile.

Voight, B., GS Mattioli, SR Young, AT Linde, IS Sacks, PE Malin, E Shalev, D Hidayat, D Elsworth, C Widiwijayanti, V Miller, N. McWhorter, B. Schleigh, W. Johnston, RSJ Sparks, J Neuberg, V Bass, P Dunkley, R Herd, A Jolly, G Norton, T Syers, G Thompson, P Williams, D Williams, AB Clarke. 2004. CALIPSO Borehole Monitoring Project at Soufriere Hills Volcano, Montserrat, BWI: Overview, Prospects and Early Results. IAVCEI Congress, Pucon, Chile.

Voight, B., GS Mattioli, AT Linde, IS Sacks, P Watts, D Hidayat, SR Young, C Widiwijayanti, E Shalev , PE Malin, D Elsworth, P Williams, E Van Boskirk, G Thompson, T Syers, RSJ Sparks, B Schleigh, G Norton, J Neuberg, V Miller, N. McWhorter, B., W. Johnston, P Dunkley , AB Clarke, V Bass 2004. Collapse of lava dome on Montserrat, July 2003 with unique CALIPSO geophysical measurement of pyroclastic flows and PF-generated tsunami waves. IAVCEI Congress, Pucon, Chile.

Diller*, K., Clarke, A, Neri, A, Macedonio, G, Voight, B. Effects of Conduit Flow Parameters On Vulcanian Explosion Characteristics. Eos Trans. AGU, 84(46), Fall Meet. Suppl., Abstract V51E-0329, 2003.

Clarke, A, Stephens*, S, Teasdale, R, Sparks, R. Petrological Constraints on the Decompression History of Magma Prior to Vulcanian Explosions at the Soufrière Hills Volcano, Montserrat. Eos Trans. AGU, 84(46), Fall Meet. Suppl., Abstract V31G-06, 2003.

Clarke, A.B., A. Neri, G. Macedonio, B. Voight, 2003. Effects Of Conduit Flow Parameters On Vulcanian Explosion Characteristics. Abstracts, EGS-AGU-EUG, Nice.

Clarke, A.B., Voight, B., Neri, A., and Macedonio, G., 2002. Insights into vulcanian fountain collapse mechanisms revealed by multiphase numerical simulations, and the influence of volatile leakage on eruptive style. Mount Pelée 1902-2002: Explosive Volcanism in Subduction Zones, International Association of Volcanology and Chemistry of the Earth Interior, Martinique, May 12-16, 2002, Program and Abstracts, 26.