Dr. Brad Dalton works with spacecraft observations, laboratory measurements and field studies to understand the composition and distribution of surface deposits on planetary surfaces, and how they influence the formation and subsequent evolution of various worlds in the solar system. Brad has published papers on Venus, Earth, Mars, Europa, Callisto, Phoebe, Hyperion, and the rings of Saturn, but his techniques and capabilities are applicable to all of the solid bodies of the Solar System.

• BS Physics - Washington University, St. Louis. (1987)
• BS Computer Science - Washington University, St. Louis (1987)
• MS Astrophysical, Planetary and Atmospheric Sciences - University of Colorado, Boulder (1996)
• PhD Geophysics- University of Colorado, Boulder (2000)

• Composition of planetary surfaces
• Visible and Infrared imaging spectroscopy
• Cryogenic laboratory studies of icy satellite surface compunds

• Jet Propulsion Laboratory - Research Scientist (2007-present)
• SETI Institute - Principal Investigator (2003-2007)
• NASA Ames Research Center - National Research Council Resident Research Associate (2001-2003)
• University of Colorado - Graduate Teaching Assistant (1995-1996)
• U.S. Geological Survey, Crustal Imaging and Characterization Team, Branch of Geophysics, Denver, CO. - Geophysicist (1993-2001)
• NASA Ames Research Center, Mathematical Analyst, Synernet and Information Management International Corporations (1987-1992)
• Washington University, St. Louis, MO. - Undergraduate Research Assistant, McDonnell Center for Space Science (1983-1987)

• US Department of the Interior Cooperative Conservation Award (2008)
• National Academy of Sciences, National Research Council Fellow (2001-2003)
• National Merit Scholar, Washington University (1982-1986)

1. Dalton, III, J.B., Shirley, J.H., Paranicas, C., Cassidy, T., Prockter, L.M., and Kamp, L.W., Sulfuric Acid Hydrate on Europa: Exogenic Controls on the Radiolytic Sulfur Cycle, Proc. Lunar Planet. Sci. Conf. XLII, 2678, 2011.
2. Korablev, O., M. Gerasimov, J.B. Dalton, K. Hand, J-P. Lebreton, and C. Webster, Methods and measurements to assess physical and geochemical conditions at the surface of Europa, J. Adv. Space Res. (2011) doi:10.1016/j.asr.2010.12.010.
3. Dalton, J.B., Palmer-Moloney, L.J., Rogoff, D., Hlavka, C. and Duncan, C., Remote monitoring of hypersaline environments in San Francisco Bay, CA, USA, Intl. J. Rem. Sens., 30(11):2933-2949, 2009.
4. Shirley, J.H., Dalton III, J.B., Prockter, L.M., Kamp, L.W., Europa¹s ridged plains and smooth low albedo plains: Distinctive compositions and compositional gradients at the leading side ¬ trailing side boundary, Icarus 210:358-384, doi:10.1016/j.icarus.2010.06.18, 2010.
5. Pitman, K.M. and Dalton, J.B., Low temperature optical constants of some hydrated sulfates relevant to planetary surfaces, submitted to J. Geophys. Res.
6. Dalton, J.B., Spectroscopy of icy moon surface materials, Space Sci. Rev.153:219-247, doi:10.1007/s11214-010-9658-7, 2010.
7. Dalton J.B., Cruikshank, D.P., Stephan, K., McCord, T.B., Coustenis, A., Carlson, R.W., Coradini, A., Chemical composition of icy satellite surfaces, Space Sci. Rev. 153:113-154, doi:10.1007/s11214-010-9665-8, 2010.
8. Dalton, J.B., Shirley, J.H., Prockter, L.M., and L.W. Kamp, Compositional gradients of anti-Jovian surface units on Europa from despiked Galileo NIMS observations, Proc. Lunar Planet. Sci. XL, 2511, 2009.
9. Phillips, C.B. and J.B. Dalton, Combining Galileo SSI and NIMS spectra for Europa, Proc. Lunar Planet. Sci. XL, 1367, 2009.
10. Dalton, J.B., The surface composition of Europa: Implications for landed missions (invited), International Workshop "The Europa Lander: Science Goals and Experiments," Space Research Institute (IKI), Russian Academy of Sciences, Moscow, Russia, Feb. 9-13, 2009.
11. Dalton, B., Water on the Moon? SPACE.com, http://www.space.com/searchforlife80605-seti-moon-water.html , June 5, 2008.
12. Dalton, J.B., Turnbull, M.C., and McKay, C.P., Spectral characterization of Atacama Desert soils for remote sensing applications, Proc. Astrobio. Sci. Conf, 28-03, Santa Clara, April 14-17, 2008.
13. Dalton, J.B. and D.P. Cruikshank, Evidence for hydrocarbons on the surface of Saturn's moon Hyperion from Cassini VIMS, IAU Symposium 251: Organic Matter in Space, Hong Kong, Feb 18-22, 2008.
14. Dalton, J.B., Linear Mixture Modeling of Europa's Non-Ice Material Based Upon Cryogenic Laboratory Spectroscopy, Geophys. Res. Let., 34, L21205, doi:10.1029/2007GL031497, 2007.
15. Cruikshank, D.P., J.B. Dalton, C.M. Dalle Ore, J. Bauer, K. Stephan, G. Filacchione, A.R. Hendrix, C.J. Hansen, A. Coradini, P. Cerroni, F. Tosi, F. Capaccioni, R. Jaumann, B.J. Buratti, R.N. Clark, R.H. Brown, R.M. Nelson, T.B. McCord, K.H. Baines, P.D. Nicholson, C. Sotin, A.W. Meyer, G. Belluci, M. Combes, J.-P. Bibring, Y. Langevin, B. Sicardy, D.L. Matson, V. Formisano, P. Drossart, V. Mennella, Surface Composition of Hyperion, Nature 448(7149), 54-55, 2007.
16. Dalton, J.B., Icy Saturnian Satellite Surface Compositions: Mapping and Modeling, Lunar Planet. Sci. XXXVII, 2415, 2007.
17. Carlson, R.W., J.S. Kargel, S. Douté, L.A. Soderblom, and J.B. Dalton, Io's Surface Composition, in Io After Jupiter, eds. R.M.C. Lopes and J.R. Spencer, Springer-Praxis, Chichester UK, 2006.
18. Sutter, B., J.B. Dalton, S.A. Ewing, R. Amundson, and C.P. McKay, Terrestrial Analogs for Interpretation of Infrared Spectra from the Martian Surface and Subsurface: Sulfate, Nitrate, and Carbonate-bearing Atacama Desert Soils, J. Geophys. Res., 112, G04S10, doi: 10.1029/2006/JG000313, 2007.
19. Dalton, J.B., O. Prieto-Ballesteros, C.S. Jamieson, J.S. Kargel, J. Jolivet, and R.C. Quinn, Spectral Comparison of Heavily Hydrated Salts to Disrupted Terrains on Europa, Icarus 177, 472-490 2005.
20. Dalton, J.B., Phoebe, Saturns Retrograde Renegade, Nature 435:7038, 33-34, 2005.
21. Emery, J.P., Burr, D.M., Cruikshank, D.P., Brown, R.H., and J.B. Dalton, Near-infrared (0.8-4.0μm) spectroscopy of Mimas, Enceladus, Tethys, and Rhea, Astronomy and Astrophysics, 435, 353-362, 2005.
22. Dalton, J.B., D.L. Bove, and C.S. Mladinich, Remote Sensing Characterization of the Animas River Watershed by AVIRIS Imaging Spectroscopy, 49 pages, USGS Scientific Investigations Report 2004-5203, U.S. Geological Survey, Denver, 2005. http://pubs.usgs.gov/sir/2004/5203/
23. Dalton, J.B., D.L. Bove, C.S. Mladinich and B. Rockwell, Classification of Spectrally Similar Materials Using the Tetracorder Algorithm: The Calcite-Epidote-Chlorite Problem, Rem. Sens. Env. 89, 455-466, 2004.
24. Dalton, J.B., R. Mogul, H.K. Kagawa, S.L. Chan, and C.S. Jamieson, Near-Infrared Detection of Potential Evidence for Microscopic Organisms on Europa, Astrobiology 3, 505-529, 2003.
25. Dalton, J.B., and J.M. Moore, Compositional Study of a Fluvial Deposit in Eberswalde Crater, Mars, Bull. Amer. Astr. Soc., 34, 93, 2004.
26. Dalton, J.B., Spectral Behavior of Hydrated Sulfate Salts: Implications for Europa Mission Spectrometer Design, Astrobiology 3, 771-784, 2003.
27. Moore, J.M., Bierhaus, B., Chapman, C., Chuang, F., Clark, R.N., Dalton, J.B., Greeley, R., Hibbitts, C., Klemaszewski, J., Schenk, P., Spencer, J., and Wagner, R., Callisto, in Jupiter, eds. F. Bagenal, T. Dowling and W. McKinnon, Cambridge University Press, 2004.
28. Clark, R.N., G.A. Swayze, K.E. Livo, R.F. Kokaly, S.J. Sutley, J.B. Dalton, R.R. McDougal, and C.A. Gent, Imaging Spectroscopy: Earth and Planetary Remote Sensing with the USGS Tetracorder and Expert Systems, J. Geophys. Res. 108, 5131, doi: 10.1029/2002JE001847, 2003.
29. Roush, T.L., and J.B. Dalton,, Reflectance Spectra of Hydrated Titan Tholins at Cryogenic Temperatures and Implications for Compositional Interpretation of Red Objects in the Outer Solar System, Icarus 168, 158-162, 2004.
30. Dalton, J.B., T.V.V. King, D.L. Bove, R.F. Kokaly, R.N. Clark, J.S. Vance and G.A. Swayze, Distribution of Acid-Generating and Acid-Buffering Minerals in the Animas River Watershed as Determined by AVIRIS Spectroscopy, pp. 1541-1550, Proceedings of the SME-ICARD 2000 Meeting, Denver, Colorado, May 21-24, 2000. http://www.speclab.cr.usgs.gov/PAPERS/animas1999/animas.html
31. Carlson, R.W., M.S. Anderson, R.E. Johnson, W.D. Smythe, A.R. Hendrix, C.A. Barth, L.A. Soderblom, G.B. Hansen, T.B. McCord, J.B. Dalton, R.N. Clark, J.H. Shirley, A.C. Ocampo, D.L. Matson, Hydrogen Peroxide on the Surface of Europa, Science 283, 2062-2064, 1999.
32. Dalton, J.B. and R.N. Clark, Observational constraints on Europa's surface composition from Galileo NIMS data, Lunar Planet. Sci. XXX, 2064, 1999.
33. Dalton, J.B., and R.N. Clark, Laboratory spectra of Europa candidate materials at cryogenic temperatures, Bull. Am. Astron. Soc.,, 30, 1081, 1998.
34. Dalton, J.B. and R.N. Clark, Detection Limits of Martian Clays, Bull. Am. Astron. Soc., 27, 1995.
35. Pollack, J.B., J.B. Dalton, D.H. Grinspoon, R.B. Wattson, R. Freedman, D. Crisp, D.A. Allen, B. Bezard, C. DeBergh, L.P. Giver, Q. Ma, and R. Tipping, Near-Infrared Light from Venus' Nightside: A Spectroscopic Analysis, Icarus 103, 1-42, 1993.
36. Showalter, M.R., J.B. Pollack, M.E. Ockert, L.R. Doyle and J.B. Dalton, A Photometric Study of Saturn's F Ring, Icarus 100, 394-411, 1992.
37. Pollack, J.B., J.B. Dalton, D.H. Grinspoon, R.Wattson, R. Freedman, D. Crisp, D. Allen, B. Bezard, C. DeBergh, Simulations of Near Infrared Spectra of Venus' Nightside with High Temperature Databases, Bull. Am. Astron. Soc. 23, 81 1991.
38. Dalton, J.B. and J.B. Pollack, Exploring Mars by Balloon: Results of GCM Simulations, 15 pages, Proceedings of the Case for Mars IV, Boulder, Colorado, June 1990.
39. Pollack, J.B., T.L. Roush, F. Witteborn, J. Bregman, D. Wooden, C. Stoker, O.B. Toon, D. Rank, B. Dalton and R. Freedman, Thermal Emission Spectra of Mars (5.4 - 10.5 μm): Evidence for Sulfates, Carbonates and Hydrates, J. Geophys. Res. 95, 14595-14627, 1990.