PTYS/LPL Faculty

Sonett 204
Alfred McEwen
Regents' Professor
Ph.D., 1988, Arizona State University
Years with LPL: 1996 to present
Astrobiology, Lunar Studies, Planetary Analogs, Planetary Geophysics, Planetary Surfaces
Dr. McEwen is a planetary geologist and director of the Planetary Image Research Laboratory (PIRL). He is working on several active spacecraft experiments, listed below.
His major research interest is understanding active geologic processes such as volcanism, impact cratering, and slope processes. He is PI of IVO, a proposed mission to Jupiter's hyperactive moon Io. For Mars and the Moon he is studying a broad range of topics in planetary geology. He is also pursuing studies and proposals for future missions and experiments at Earth and to Jupiter's moons Io and Europa.
Current Grants
- HiRISE: Mars Reconnaissance Orbiter: NASA/JPL
- LROC: Lunar Reconnaissance Orbiter: NASA/GSFC
- Colour and Stereo Surface Imaging System (CaSSIS): ExoMars Trace Gas Orbiter: ESA
- Europa Imaging System (EIS): Europa Clipper: NASA/APL
- Io Volcano Observer (IVO) Phase A: NASA/UArizona/APL
Current Spacecraft Involvement
- Principal Investigator of the Io Volcano Observer (IVO) mission. IVO Fact Sheet (pdf)
- Co-Investigator on Colour and Stereo Surface Imaging System (CaSSIS) on ExoMars Trace Gas Orbiter (launch 2016)
- Principal Investigator of the High Resolution Imaging Science Experiment (HiRISE) for the Mars Reconnaissance Orbiter (MRO)
- Co-Investigator, LROC team on the Lunar Reconnaissance Orbiter (LRO) mission to the Moon
- Deputy-PI of the Europa Imaging System (EIS) on the Europa Clipper Mission (launch 2022 or later)
Former Spacecraft Involvement
- Participating scientist on Mars Odyssey THEMIS
- Participating scientist on Mars Global Surveyor MOC
- Interdisciplinary Scientist on the Galileo mission to Jupiter
- Science team member on the Clementine mission to the Moon
- Guest Investigator for the Voyager Neptune encounter
- Principal Investigator of the High-resolution Stereo Color Imager (HiSCI) on the ESA/NASA ExoMars Trace Gas Orbiter (TGO)
- Member of the imaging science team of the Cassini mission to Saturn, 1990-2018
Current Graduate Students
Former Students
- Cecilia Leung, 2020 (Ph.D. PTYS)
- Ethan Schaefer, 2018 (Ph.D. PTYS)
- Corwin Atwood-Stone, 2018 (Ph.D. PTYS)
- Donna Viola, 2017 (Ph.D. PTYS)
- Ingrid Daubar, 2014 (Ph.D. PTYS)
- Maria Banks, 2009 (Ph.D. Geosciences)
- Colin Dundas, 2009 (Ph.D. PTYS)
- Andrea Jones, 2009 (M.S. Geosciences)
- Kelly Kolb, 2008 (M.S. PTYS), 2009 (Ph.D. PTYS)
- Stephanie Fussner, 2006 (M.S. PTYS)
- Moses Milazzo, 2005 (Ph.D. PTYS)
- Brandon Preblich, 2005 (M.S. PTYS)
- Jani Radebaugh, 2005 (Ph.D. PTYS)
- Ross Beyer, 2004 (Ph.D. PTYS)
- Peter Lanagan, 2004 (Ph.D. PTYS)
- Cynthia Phillips, 2000 (Ph.D. PTYS)
- Jennifer Grier, 1999 (Ph.D. PTYS)
Former Postdocs
- Veronica Bray
- Matthew Chojnacki
- Colin Dundas
- Jennifer Fernando
- Lazslo Keszthelyi
- Elizabeth Turtle
- Marion Masse
- Chris Okubo
- Livio Tornabene
Current Staff Scientists
- Veronica Bray
Former Staff Scientists
- Matt Chojnacki
Based on Google Scholar and NASA ADS: NASA ADS Author search: Alfred S. McEwen
Refereed publications: Calendar Years 2017 through June 2020
Daubar, I. J., Lognonné, P., Teanby, N. A., Collins, G. S., Clinton, J., Stähler, S., et al. (2020). A New Crater Near InSight: Implications for Seismic Impact Detectability on Mars. Journal of Geophysical Research: Planets, 125, e2020JE006382. doi.org/10.1029/2020JE006382
G. Munaretto, M. Pajola, G. Cremonese, C. Re, A. Lucchetti, E. Simioni, A.S. McEwen, A. Pommerol, P. Becerra, S.J. Conway, N. Thomas, M. Massironi, Implications for the origin and evolution of Martian Recurring Slope Lineae at Hale crater from CaSSIS observations, Planetary and Space Science, Volume 187, 2020, 104947, ISSN 0032-0633, doi.org/10.1016/j.pss.2020.104947.
Thomas, M. F., McEwen, A. S., Dundas, C. M. Present-day mass wasting in sulfate-rich sediments in the equatorial regions of Mars 2020Icar..34213566T
Perrin, C., Rodriguez, S., Jacob, A., Lucas, A., Spiga, A., Murdoch, N., Lorenz, R., Daubar, I. J., Pan, L., Kawamura, T., Lognonné, P., Banfield, D., Banks, M. E., Garcia, R. F., Newman, C. E., Ohja, L., Widmer-Schnidrig, R., McEwen, A. S., Banerdt, W. B. Monitoring of Dust Devil Tracks Around the InSight Landing Site, Mars, and Comparison With In Situ Atmospheric Data 2020GeoRL..4787234P
Wang, A., Ling, Z., Yan, Y., McEwen, A. S., Mellon, M. T., Smith, M. D., Jolliff, B. L., Head, J. Subsurface Cl-bearing salts as potential contributors to recurring slope lineae (RSL) on Mars 2019Icar..333..464W
Bart, G. D., Daubar, I. J., Ivanov, B. A., Dundas, C. M., McEwen, A. S. Dark halos produced by current impact cratering on Mars 2019Icar..328...45B
Schaefer, E. I., McEwen, A. S., Sutton, S. S. A case study of recurring slope lineae (RSL) at Tivat crater: Implications for RSL origins 2019Icar..317..621S
Dundas, C. M., McEwen, A. S., Diniega, S., Hansen, C. J., Byrne, S., McElwaine, J. N. The formation of gullies on Mars today 2019GSLSP.467...67D
Hendrix, A. R., Hurford, T. A., Barge, L. M., Bland, M. T., Bowman, J. S., Brinckerhoff, W., Buratti, B. J., Cable, M. L., Castillo-Rogez, J., Collins, G. C., Diniega, S., German, C. R., Hayes, A. G., Hoehler, T., Hosseini, S., Howett, C. J. A., McEwen, A. S., Neish, C. D., Neveu, M., Nordheim, T. A., Patterson, G. W., Patthoff, D. A., Phillips, C., Rhoden, A., Schmidt, B. E., Singer, K. N., Soderblom, J. M., Vance, S. D. The NASA Roadmap to Ocean Worlds 2019AsBio..19....1H
Turtle, E. P., Perry, J. E., Barbara, J. M., Del Genio, A. D., Rodriguez, S., Le Mouélic, S., Sotin, C., Lora, J. M., Faulk, S., Corlies, P., Kelland, J., MacKenzie, S. M., West, R. A., McEwen, A. S., Lunine, J. I., Pitesky, J., Ray, T. L., Roy, M. Titan's Meteorology Over the Cassini Mission: Evidence for Extensive Subsurface Methane Reservoirs 2018GeoRL..45.5320T
Bierhaus, E. B., McEwen, A. S., Robbins, S. J., Singer, K. N., Dones, L., Kirchoff, M. R., Williams, J.-P. Secondary craters and ejecta across the solar system: Populations and effects on impact-crater-based chronologies 2018M&PS...53..638B
Tornabene, L. L., Seelos, F. P., Pommerol, A., Thomas, N., Caudill, C. M., Becerra, P., Bridges, J. C., Byrne, S., Cardinale, M., Chojnacki, M., Conway, S. J., Cremonese, G., Dundas, C. M., El-Maarry, M. R., Fernando, J., Hansen, C. J., Hansen, K., Harrison, T. N., Henson, R., Marinangeli, L., McEwen, A. S., Pajola, M., Sutton, S. S., Wray, J. J. Image Simulation and Assessment of the Colour and Spatial Capabilities of the Colour and Stereo Surface Imaging System (CaSSIS) on the ExoMars Trace Gas Orbiter 2018SSRv..214...18T
Bray, V. J., Atwood-Stone, C., Neish, C. D., Artemieva, N. A., McEwen, A. S., McElwaine, J. N. Lobate impact melt flows within the extended ejecta blanket of Pierazzo crater 2018Icar..301...26B
Dundas, C. M., Bramson, A. M., Ojha, L., Wray, J. J., Mellon, M. T., Byrne, S., McEwen, A. S., Putzig, N. E., Viola, D., Sutton, S., Clark, E., Holt, J. W. Exposed subsurface ice sheets in the Martian mid-latitudes 2018Sci...359..199D
Viola, D., McEwen, A. S. Geomorphological Evidence for Shallow Ice in the Southern Hemisphere of Mars 2018JGRE..123..262V
Tornabene, L. L., Watters, W. A., Osinski, G. R., Boyce, J. M., Harrison, T. N., Ling, V., McEwen, A. S. A depth versus diameter scaling relationship for the best-preserved melt-bearing complex craters on Mars 2018Icar..299...68T
Dundas, C. M., McEwen, A. S., Chojnacki, M., Milazzo, M. P., Byrne, S., McElwaine, J. N., Urso, A. Granular flows at recurring slope lineae on Mars indicate a limited role for liquid water 2017NatGe..10..903D
van der Bogert, C. H., Hiesinger, H., Dundas, C. M., Krüger, T., McEwen, A. S., Zanetti, M., Robinson, M. S. Origin of discrepancies between crater size-frequency distributions of coeval lunar geologic units via target property contrasts 2017Icar..298...49V
Stopar, J. D., Robinson, M. S., Barnouin, O. S., McEwen, A. S., Speyerer, E. J., Henriksen, M. R., Sutton, S. S. Relative depths of simple craters and the nature of the lunar regolith 2017Icar..298...34S
Thomas, N., Cremonese, G., Ziethe, R., Gerber, M., Brändli, M., Bruno, G., Erismann, M., Gambicorti, L., Gerber, T., Ghose, K., Gruber, M., Gubler, P., Mischler, H., Jost, J., Piazza, D., Pommerol, A., Rieder, M., Roloff, V., Servonet, A., Trottmann, W., Uthaicharoenpong, T., Zimmermann, C., Vernani, D., Johnson, M., Pelò, E., Weigel, T., Viertl, J., De Roux, N., Lochmatter, P., Sutter, G., Casciello, A., Hausner, T., Ficai Veltroni, I., Da Deppo, V., Orleanski, P., Nowosielski, W., Zawistowski, T., Szalai, S., Sodor, B., Tulyakov, S., Troznai, G., Banaskiewicz, M., Bridges, J. C., Byrne, S., Debei, S., El-Maarry, M. R., Hauber, E., Hansen, C. J., Ivanov, A., Keszthelyi, L., Kirk, R., Kuzmin, R., Mangold, N., Marinangeli, L., Markiewicz, W. J., Massironi, M., McEwen, A. S., Okubo, C., Tornabene, L. L., Wajer, P., Wray, J. J. The Colour and Stereo Surface Imaging System (CaSSIS) for the ExoMars Trace Gas Orbiter 2017SSRv..212.1897T
Ojha, L., Chojnacki, M., McDonald, G. D., Shumway, A., Wolff, M. J., Smith, M. D., McEwen, A. S., Ferrier, K., Huber, C., Wray, J. J., Toigo, A. Seasonal Slumps in Juventae Chasma, Mars 2017JGRE..122.2193O
Sutton, S. S., Boyd, A. K., Kirk, R. L., Cook, D., Backer, J. W., Fennema, A., Heyd, R., McEwen, A. S., Mirchandani, S. D. Correcting Spacecraft Jitter in Hirise Images 2017ISPAr62W1..141S
Viola, D., McEwen, A. S., Dundas, C. M., Byrne, S. Subsurface volatile content of martian double-layer ejecta (DLE) craters 2017Icar..284..325V
- UArizona-Led Mission to Io Selected as Finalist for NASA Discovery Program - February 13, 2020
- NASA Selects Four Possible Missions to Study the Secrets of the Solar System - February 13, 2020
- Does Io Have a Magma Ocean? - October 18, 2019
- Travel to Alien Moons with UA Expert Guides - July 22, 2019
- Mapping the Moon and Worlds Beyond - July 16, 2019
- Alfred McEwen Appointed Regents' Professor - April 15, 2019
- Recurring Martian Streaks: Flowing Sand, Not Water? - November 21, 2017
- After Farewell Kiss, Cassini Takes the Plunge - September 13, 2017
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Semester | Course | Day/Time | Location | Resources |
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Spring 2021 | PTYS/ASTR/GEOS 542-001 | MW 2:00-3:15p.m. | Kuiper 312 |
Syllabus D2L Course Page |
Spring 2021 | PTYS/ASTR/GEOS 442-001 | MW 2:00-3:15p.m. | Kuiper 312 |
Syllabus Course Page |
Spring 2019 | PTYS 595B-001 | W 1:30-2:30p.m. | Kuiper 301 |
Syllabus Course Page |