Department of Climate and Space Sciences and Engineering in the College of Engineering at the University of Michigan

FACULTY


Christopher Parkinson
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Christopher D. Parkinson

Associate Research Scientist

Phone: (626) 818-9293
Fax: (734) 647-3083
Email: theshire@umich.edu
[ Link to website ]

Education

Ph.D., Earth and Space Science, York University, Toronto

Thesis: Photochemistry and radiative transfer studies in the atmospheres of Jupiter and Saturn (http://www.gps.caltech.edu/~cdp/Thesis)

M.Sc., Earth and Space Science, York University, Toronto

Thesis: On approximating positive solutions to some nonlinear integro-differential equations

H.B.Sc., Science, York University, Toronto

Research

Radiative transfer, 1-D and GCM photochemistry and dynmical modeling of planetary atmospheres  

Microphysical cloud modeling in planetary atmospheres and Enceladus' plume

Particle precipitation into planetary atmospheres

Hydrodynamic escape from extrasolar gas giant planetary atmospheres

Astrobiology

Specializations and Research Interests

  • Cassini:  Jovian and Saturnian He 584A airglow data analysis and modeling using Cassini UVIS data
  • Enhanced chemistry and transport in the polar mesosphere of Jupiter and mesosphere of Saturn using evidence from the helium airglow observed by Cassini
  • Enceladus: Cassini observations and implications for the search for life; quantifying the hydrological cycle, chemical redox cycle and analysis of Cassini UVIS plume data
  • Venus Express:  Venus Express observations and photochemical modeling of the Venusian atmosphere from the surface to the top of the stratosphere; VTGCM modelling.
  • Photochemistry in extrasolar gas giant planetary atmospheres
  • Astrobiology and microphysical cloud modeling at JPL
  • Hydrogen and Oxygen hot ion precipitation in the Martian atmosphere
  • Hydrogen and Oxygen hot ion precipitation in Venus’ atmosphere
  • Hot ion precipitation in the Jovian and Saturnian upper atmospheres
  • Hydrodynamic escape from planetary atmospheres, with emphasis on extrasolar gas giants, Titan, and the early Earth, Mars and Venus
  • Photochemistry in extrasolar gas giant planetary atmospheres
  • Investigation of evolution 13C in the Martian atmosphere
  • Solar system D/H ratio

Honors, Awards and Accomplishments

2012-2019 Cassini Participating Scientist 

2014-2017 Venus Express Participating Scientist

2016-2017    Kenneth M. Reese Outstanding Research Scientist Award Recipient,  University of Michigan, College of Engineering

2018 Visiting Scientist, Caltech

2012-2014    NPP Senior Fellow, Jet Propulsion Laboratory, Pasadena, CA

2012              Visiting Professor (Jan to Mar), Laboratoire de Planétologie de Grenoble, Université Grenoble/Université Joseph Fourier, Grenoble, France

2010              Visiting Professor (May to July), Laboratoire de Planétologie de Grenoble, Université Grenoble/Université Joseph Fourier, Grenoble, France

2005               Poste Rouge (May to July), Institut d’Astrophysique de Paris

2001               Bourse Postdoctorale Chateaubriand

1997               Visiting Lecture Fellowship, Institut d’Astrophysique de Paris

1992-1993    Natural Sciences and Engineering Research Council of Canada Visiting Fellow, Atmospheric Environment Service, Toronto

1991-1992    Natural Sciences and Engineering Research Council of Canada Visiting Fellow, Atmospheric Environment Service, Toronto 

Professional Service

  • American Astronomical Society (AAS), Division of Planetary Sciences (DPS)
  • American Geophysical Union (AGU)

Publications

Papers accepted or published in refereed journals in 2012 to present 

Marcq, E., F. Mills, C. D. Parkinson, B. Sandor, A. C. Vandaele, (2017). Composition and Chemistry of the Neutral Atmosphere of Venus, Space Science Reviews 214(1), DOI10.1007/s11214-017-0438-5

Jolitz, R., C. Dong, C. Lee, R. J. Lillis, D. A. Brain, S. M. Curry, S. W. Bougher, C. D. Parkinson, and B. Jakosky (2017), A Monte Carlo Model of Crustal Field Influences on Solar Energetic Particle Precipitation into the Martian Atmosphere, JGR: Space Physics, 122, DOI10.1002/2016JA023781

A.C. Vandaele, O. Korablev, D. Belyaev, S. Chamberlain, D. Evdokimova, Th. Encrenaz, L. Esposito, K.L. Jessup, F. Lefèvre, S. Limaye, A. Mahieux, E. Marcq, F.P. Mills, F. Montmessin, C.D. Parkinson, S. Robert, T. Roman, B. Sandor, A. Stolzenbach, C. Wilson, V. Wilquet, Sulfur dioxide in the Venus atmosphere: I. Vertical distribution and variability, Icarus, Volume 295, October 2017, Pages 16-33, ISSN 0019-1035, https://doi.org/10.1016/j.icarus.2017.05.003. (http://www.sciencedirect.com/science/article/pii/S0019103516303281) 

A.C. Vandaele, O. Korablev, D. Belyaev, S. Chamberlain, D. Evdokimova, Th. Encrenaz, L. Esposito, K.L. Jessup, F. Lefèvre, S. Limaye, A. Mahieux, E. Marcq, F.P. Mills, F. Montmessin, C.D. Parkinson, S. Robert, T. Roman, B. Sandor, A. Stolzenbach, C. Wilson, V. Wilquet, Sulfur dioxide in the Venus Atmosphere: II. Spatial and temporal variability, Icarus, Volume 295, October 2017, Pages 1-15, ISSN 0019-1035, https://doi.org/10.1016/j.icarus.2017.05.001.(http://www.sciencedirect.com/science/article/pii/S0019103516303293) 

Parkinson, C. D., Y. L. Yung, L. Esposito, P. Gao, S. W. Bougher, and M. Hirtzig (2015). Photochemical Control of the Distribution of Venusian Water, Planet. Space Sci., doi:10.1016/j.pss.2015.02.015. 

Parkinson, C. D., P. Gao, R. Schulte, S. W. Bougher, Y. L., Yung, C. G. Bardeen, V. Wilquet, A. C. Vandaele, A. Mahieux, S. Tellmann, and M. Patzold (2015). Distribution of Sulphuric Acid Aerosols in the Upper Haze of Venus Using Venus Express VAST and VeRa Temperature Profiles, Planet. Space Sci., doi:10.1016/j.pss.2015.01.023.

Bougher, S. W., A. S. Brecht, R. Schulte, J. Fischer, C. D. Parkinson, A. Mahieux, V. Wilquet, A. C. Vandaele (2015). Upper Atmosphere Temperature Structure at the Venusian Terminators: A Comparison of SOIR and VTGCM Results, Planet. Space Sci., http://dx.doi.org/10.1016/j.pss.2015.01.012.

Gronoff, G., R. Maggiolo, C. Simon Wedlund, C. J. Mertens, R. B. Norman, J. Bell, D. Bernard, C. D. Parkinson, and A. Vidal-Madjar (2014). THEORETICAL UV ABSORPTION SPECTRA OF HYDRODYNAMICALLY ESCAPING O2/CO2-RICH EXOPLANETARY ATMOSPHERES, The Astrophysical Journal, 788:191, doi:10.1088/0004-637X/788/2/191

Wilquet, V., R. Drummond, A. Mahieux, S. Robert, A.C. Vandaele, S. Bougher, A. Brecht, C. D. Parkinson (2012). Combination of SOIR/VEX observations and VTGCM simulations to decipher the mesosphere and lower thermosphere of Venus, EPSC2012-635, 2012 European Planetary Science Congress. 

Parkinson, C. D., M. A. Allen, S. W. Bougher, A. Brecht, F. P. Mills, Y. L. Yung (2012), Observations of Night OH in the Mesosphere of Venus, Icarus. 

Parkinson, C.D., F. P. Mills, A. Brecht, S. Bougher, M. Liemohn, and Y. L. Yung(2012). Sulphur and Halogen Photochemistry in the Venusian atmosphere - Implications regarding VenusExpress observations, Icarus. 

Parkinson, C.D., M. Liemohn, Xiaohua Fang (2012), Hot Hydrogen Ion Precipitation in the Martian Ionosphere in the Vicinity of Strong Crustal Magnetic Field Anomalies, Icarus 

Parkinson, C. D., L. Ben-Jaffel, and J. C. McConnell. (2012). Deuterium abundance from HD and CH3D reservoirs in the atmosphere of Jupiter, Journal of Geophysical Research (Planets).

Menager, H., M. Barthelemy, T. Koskinen, J. Lilensten, D. Ehrenreich, C. D. Parkinson (2012).  Calculation of the H Lyman α emission of the hot Jupiters HD209458b and HD189733b, Icarus. 

Walker, C. C., J. N. Bassis, M. W. Liemohn, and C. D. Parkinson, 2012. On the formation of the south polar region of Enceladus as a terrestrial basin, Journal of Geophysical Research, doi: 10.1029/2012JE004084. 

 

Papers under review at refereed journals

Parkinson, C. D., D. J. Hill, and M. I. Richardson. A time-evolving transonic numerical atmospheric model: Description, validation, and application to loss.

Parkinson, C.D., Y. L. Yung, and L. Esposito. Cassini UVIS Observations of He 584 Å Airglow at Saturn, Icarus.

Parkinson, C.D., S. W. Bougher, Y. L. Yung, A. Brecht, and G. Gronoff, On Understanding the Nature and Variation of the Venusian Middle Atmosphere Via Observations and Numerical Modeling of Key Tracer Species, Icarus

Parkinson, C. D., Deuterium abundance from HD and CH3D reservoirs in the atmosphere of Jupiter,  J. Geophys. Res. (Planets).

Parkinson, C. D., S. W. Bougher, A. Brecht, F. P. Mills, Y. L. Yung, Observations of Night OH in the Mesosphere of Venus, Icarus.

Parkinson, C.D., M. Barthelemy, J. Lilensten, G. Gronoff, M. Liemohn, Hot Hydrogen Ion Precipitation in the Martian Ionosphere in the Vicinity of Strong Crustal Magnetic Field Anomalies, Icarus.

Parkinson, C.D., F. P. Mills, A. Brecht, S. Bougher, and Y. L. Yung, Sulphur and Halogen Photochemistry in the Venusian atmosphere - Implications regarding Venus Express observations, Icarus.

 Parkinson, C. D., D. A. Brain, R. J. Lillis, M. Liemohn, S.Bougher, X. Fang, Modeling Atmospheric Energy Deposition (by energetic ions) EPS3107CSP, Earth, Planets 

Parkinson, C.D., M. Liemohn, Xiaohua Fang, Hot Hydrogen Ion Precipitation in the Martian Ionosphere in the Vicinity of Strong Crustal Magnetic Field Anomalies, Icarus.

  

Papers submitted or in preparation

Kass, D., C. D. Parkinson, and Y. L. Yung. Evolution of 13C in the Martian atmosphere, for submission to Icarus. 

Parkinson, C. D., D. J. Hill, and M. I. Richardson. A time-evolving transonic numerical atmospheric model: Description, validation, and application to loss.

Parkinson, C.D., Y. L. Yung, and L. Esposito.Cassini UVIS Observations of He 584 Å Airglow at Saturn

Parkinson, C.D., A. Brecht, S. Bougher,  On Understanding the Nature and Variation of the Venusian Middle Atmosphere Via Observations and Numerical Modeling of Key Tracer Species

 

Papers published in refereed journals before 2012

C. D. Parkinson, A. Brecht, S. Bougher, F. Mills, M. Liemohn, X. Zhang, M. Allen, and Y. L. Yung, ‚Ä®Modeling of Observations of Night OH in the Venusian MesosphereEPSC-DPS2011-1607, 2011

C.D. Parkinson, M. Russell, and Y.L. Yung, Habitability of Enceladus and Mars: Planetary Conditions for LifeEPSC-DPS2011-1550, 2011

Brecht, A. S., S. W. Bougher, J.-C. Gerard, C. D. Parkinson, S. Rafkin, B. Foster, Understanding the Variability of Nightside Temperatures, NO UV and O2 IR Nightglow Emissions in the Venus Upper Atmosphere, JGR-Planets, Vol.  116, E08004, doi:10.1029/2010JE003770, 2011

Zhang, Xi, Mao-Chang Liang, Franck Montmessin, Jean-Loup Bertaux, Christopher Parkinson & Yuk L. Yung, Photolysis of sulphuric acid as the source of sulphur oxides in the mesosphere of VenusNature Geoscience3, 834–837 (2010) doi:10.1038/ngeo989

Yung, Y. L., M. J. Russell, and C. D. Parkinson, The Search for Life on Mars,Journal of Cosmology, 5, 1121-1130, 2010.

Parkinson, C. D., A. Brecht, S. W. Bougher, F. Mills, and Y. L. Yung, Photochemical Distribution of Venusian Sulphur and Halogen Species, B.A.A.S. Trans., DPS, Fall Meet. Suppl., Abstract # 10.04, 2010.

Parkinson, C. D., D. A. Brain, M. W. Liemohn, R. J. Lillis, Hot Hydrogen/Proton Precipiation in Planetary Ionospheres, Eos Trans., AGU, 90 (52), Fall Meet. Suppl., Abstract # SM41B-1870, 2010. 

Menager H., M. Barthélemy, C. D. Parkinson, J. Lilensten, H. Abgrall and E. Roueff, Modeling FUV emissions of a hot Jupiter, Vol. 5, EPSC2010-635, 2010 European Planetary Science Congress, 2010.

Barthélemy M., J-Y. Chaufray, J. Lilensten, C. Simon, C. D. Parkinson, and G. Gronoff, Radiative transfer of the oxygen 130 nm triplet in atmospheres containing oxygen and carbon monoxide,Vol. 5, EPSC2010-635, 2010 European Planetary Science Congress, 2010.

Walker, C. C., M. W. Liemohn, and C. D. Parkinson, On radar sounding applications for Enceladean ice, in 2010 IEEE International Geoscience and Remote Sensing Symposium, IEEE-IGARSS Serial, 4522-4525, IEEE, New York, NY, 2010.

Parkinson, C. D., M. W. Liemohn, X. Fang, S. W. Bougher, Y. L. Yung (2009), Particle Precipitation in the Jovian and Saturnian Thermosphere and Exosphere,Eos Trans., AGU, 90 (52), Fall Meet. Suppl., Abstract # P11B-1216. 

Brain, D. A., G. T. Delory, R. J. Lillis, J. G. Luhmann, S. W. Bougher, C. D. Parkinson, Energy Deposition by Energetic Protons in the Upper Atmosphere of Mars,Eos Trans., AGU, 90 (52), Fall Meet. Suppl., Abstract # P11B-1215, 2009. 

Hodyss, R., Parkinson, C. D., Johnson, P. V., Stern, J. V., Goguen, J. D., Yung, Y. L., Kanik, I., (2009), Methanol on Enceladus, GRL, 36, L17103, doi:10.1029/2009GL039336. 

Parkinson, C. D., M.-C. Liang, Y. L. Yung and J. L. Kirschvink, Habitabilty of Enceladus:  Planetary Conditions for Life, Origins of Life and Evolution of Biospheres, 38, 355-369, DOI :10.1007/s11084-008-9135-4, 2008. 

Parkinson, C. D., M. W. Liehmohn X. Fang,Hydrogen and oxygen hot ion precipitation in the Martian ionosphere,Eos Trans., AGU, 89 (53), Fall Meet. Suppl., Abstract #P13B-1317, 2008. 

Ehrenreich, D., Lecavelier des Etangs, A., Hebrard, G., Desert, J.-M., Vidal-Madjar, A., McConnell, J. C., Parkinson, C. D., and Ballester, G. E., New observations of the extended hydrogen exosphere of the extrasolar planet HD209458b, arXiv:0803.1831,DOI: 10.1017/S1743921308027129,2008 

Liang, M.-C.,Parkinson, C. D., Bougher, S. W., and Yung, Y. L., Modeling the Distribution of H2O and HDO in the upper atmosphere of Venus, European Geosciences Union, EGU2008-A-05748, 2008. 

Parkinson, C. D., M.-C. Liang,  H. Hartman, C. Hansen, G. Tinetti, V. Meadows, and Y. L. Yung. (2006). Enceladus: Cassini observations and implications for the search for life, Astronomy & Astrophysics, 463, 353—357, DOI: 10.1051/0004-6361:20065773,2007. 

Barthelemy, M., Lilensten, J., Parkinson, C. D. (2007) A method to detect H2in the atmosphere of transiting extrasolar planets using the EUV spectrum, A&A, 10.1051/0004-6361:20065891. 

Parkinson, C.D., Liang, M.-C., Guo, X., Hartman, H., Hansen, C.J., Tinetti, G., Meadows, V. & Yung, Y.L.  (2006).  The possibility for life on Enceladus.  Astrobiology, 6(1):239. 

Parkinson, C. D., A. I. F. Stewart, A. S. Wong, Y. L. Yung, and J. M. Ajello. (2006). Enhanced chemistry and transport in the polar mesosphere of Jupiter: Evidence from Cassini UVIS helium 584 Å airglow, J. Geophys. Res. (Planets), 111, E02002, doi:10.1029/2005JE002539.

Parkinson, C. D., J. C. McConnell, L. Ben-Jaffel, A. Y.-T. Lee, Y. L. Yung, and E. Griffioen. (2006). Deuterium chemistry and airglow in the Jovian thermosphere, Icarus, 183, 451-470.

Barthelemy, M., J. Lilensten, C. D. Parkinson, (2006), Effect of H2in the atmosphere of an extra-solar planet, on some EUV lines. Detection in the case of a transiting planet, Astronomy & Astrophysics. 

Barthélemy, M., C. D. Parkinson, J. Lilensten, and R. Prangé. (2005). H2vibrational temperatures in the upper atmosphere of Jupiter, A. & A., 437, 329-331.

Prangé, R., L. Pallier, K. Hansen, R. Howard, A. Vourlidas, R. Courtin, and C. D. Parkinson. (2004). Planetary auroral storms trace a CME-driven interplanetary shock from the Sun to Saturn, Nature, 432, 78-81. 

Vidal-Madjar, A., J.-M. Desert, A. Lecavelier des Etang, G. Hebrard, G. E. Ballester, D. Ehrenreich, R. Ferlet, J. C. McConnell, M. Mayor, and C. D. Parkinson. (2004). Detection of oxygen and carbon in the upper atmosphere of the extrasolar planet HD209458b, Ap. J., 604, L69. 

Liang, M.-C., S. Seager, C. D. Parkinson, A. Y.-T. Lee, and Y. L. Yung. (2004). On the insignificance of photochemical aerosols in the atmospheres of close-in extrasolar giant planets, Ap. J., 605, L61.

Barthélemy, M., J. Lilensten, and C. D. Parkinson. (2004). Modelling the lyman beta dayglow in the Jovian atmosphere,A. & A., 423, 391-395. 

Crisp, D., G. Tinetti, J. Armstrong, and C. D. Parkinson. (2004). A comprehensive climate model for extrasolar terrestrial planets, International Journal of Astrobiology, 3 (S1), 35.

Crisp, D., V. S. Meadows, C. D. Parkinson, M. A. Allen, T. Velusamy, G. Tinetti, R. Rye, K. Krelove, J. Kasting, A. Segura. (2004). The astronomical detection of biosignatures on extrasolar terrestrial planets: the Virtual Planetary Laboratory, Proc AAS Bull.

http://hdl.handle.net/2014/7916

Tinetti, G., D. Crisp, V. S. Meadows, J. Armstrong, and C. D. Parkinson. (2004). Sensitivity of extrasolar terrestrial planets' climate to different orbital geometries, Astrobiology, 4 (2), 300. 

Liang, M.-C., C. D. Parkinson, A. Y.-T Lee, Y. L. Yung, and S. Seager. (2003). Source of atomic hydrogen in the atmosphere of HD209458b, Ap. J. Lett., 596, 247.

Parkinson, C. D., V. Meadows, D. Crisp, Y. L. Yung, and G. Tinetti. (2003). Astronomical detection of biosignatures from extrasolar planets:  Virtual Planetary Laboratory (VPL) architecture and model validation, Proc. AAS Bull.

Ward, W. E., W. A. Gault, G. G. Shepherd, I. C. McDade, M. Kowalski, D. Y. Wang, J. C. McConnell, D. Michelangeli, C. D. Parkinson, J. Caldwell, N. Rowlands, S. Wang, S. Bougher, and J. Fox. (2001). Design possibilities for a field-widened Michelson interferometer for wind and temperature measurements in planetary atmospheres,Bull. AAS33, 1146.

Parkinson, C. D., E. Griffioen, J. C. McConnell, L. Ben-Jaffel, A. Vidal-Madjar, J. T. Clarke, and G.R. Gladstone. (1999). Estimates of atomic deuterium abundance and lyman-alpha airglow in the thermosphere of Jupiter, Geophys. Res. Lett., 26, 3177-3180. 

Parkinson, C. D., E. Griffioen, J. C. McConnell, G. R. Gladstone, and B.R. Sandel. (1998). He 584 Å dayglow at Saturn: A re-assessment, Icarus, 133, 210-220.

Vervack, R. J., B. R. Sandel, G. R. Gladstone, J. C. McConnell, and C. D. Parkinson. (1995). Jupiter’s He 584 Å dayglow: New results, Icarus, 114, 163-173.

Parkinson, C. D., J. C. McConnell, B. R. Sandel, R. V. Yelle, and A. L. Broadfoot. (1990). He 584 Å dayglow at Neptune, Geophys. Res. Lett.,17, 1709-1712. 

McConnell, J. C., C. D. Parkinson, L. Ben Jaffel, C. Emerich, R. Prangé, and A. Vidal-Madjar. (1989). H lyman-alpha emission at Neptune: Voyager prediction, A. & A., 225, L9-L12.

 

CONFERENCE PRESENTATIONS

2018               COSPAR, Pasadena California (3 papers)

  • HELIUM 584Å AND H LYMAN-ALPHA AIRGLOW IN GIANT PLANETARY ATMOSPHERES: MODELING, OBSERVATIONS, AND IMPLICATIONS (invited)
  • Modeling of Observations of the OH Nightglow in the Venusian Mesosphere (Invited)
  • Monitoring Saturn's Upper Atmosphere Density Variations Using Helium 584Å Airglow

2018               Cassini PSG 75 Meeting Presentations

2017               On Understanding the Nature and Variation of the Venusian Middle Atmosphere Via Observations and Numerical Modeling of Key Tracer Species, Venera-D Modeling Workshop, Moscow, Russia, Oct. 2017

2017               Monitoring Saturn's Upper Atmosphere Density Variations Using He 584 A Airglow, Provo, UT.

2017               Cassini PSG 71, 72, and 73 Meeting Presentations

2017               Cassini UVIS Team Meeting Presentations

2016               He 584 A at Saturn: Cassini data and modelingCOSPAR Istanbul, Turkey, July/August 2016

2016               Modeling Planetary Atmospheric Energy Deposition By Energetic Ions, COSPAR Istanbul, Turkey, July/August 2016

2016               Cassini PSG 69, 70, 71 Meeting Presentations

2016               Monitoring Saturn's Upper Atmosphere Density Variations Using He 584 A Airglow, Pasadena, CA. 

2016               On Understanding the Nature and Variation of the Venusian Middle Atmosphere Via Observations and Numerical Modeling of Key Tracer Species, [P53C-4033], AGU, San Francisco, CA

2016          PHOTOCHEMICAL CONTROL OF THE DISTRIBUTION OF VENUSIAN WATER & SULPHURIC ACID AEROSOLS IN THE CLOUDS AND UPPER HAZE LAYER OF VENUS, PLUS NEW INSIGHTS REGARDING SO2,Venus International Conference, Oxford, England 

2016          Photochemical Distribution of Venusian Sulfur and Halogen Species, Venus International Conference, Oxford, England 

2016          Observations of night OH in the mesosphere of Venus, Venus International Conference, Oxford, England 

2016          Dynamics, Airglow, and Chemistry of the Venus Upper Atmosphere: Interpretation of Venus Express Datasets Using the VTGCM (invited), Venus International Conference, Oxford, England 

2016          Concurrent observations of the ultraviolet NO and infrared O2 nightglow emissions: Uncorrelated behavior explained with the VTGCM, Venus International Conference, Oxford, England 

2016          Photolysis of H2SO4 as a Source of SO2 and SO in the Mesosphere of Venus, Venus International Conference, Oxford, England

2015               Photochemical Distribution of Venusian H2O and SOx with Results Regarding Transport from VTGCM/Modeling Venus Aerosols with CARMA Microphysical Cloud Model, ISSI SO2 Workshop, Bern, Switzerland

2015               Cassini PSG 65, 67, 68 Meeting Presentations

2014               Photochemical Control of the Distribution of Venusian Water and Sulphuric Acid Aerosols in the Clouds and Upper Haze of Venus, [P53C-4033], San Francisco, CA

2014               VENUS THEN & NOW: SIMULATING SULFURIC ACID CLOUDS USING VIRA & VENUS EXPRESS TEMPERATURE PROFILES, [P53C4029], AGU, San Francisco, CA

2014               Photochemical Distribution of Venusian H2O and SOx with Results Regarding Transport from VTGCM/Modeling Venus Aerosols with CARMA Microphysical Cloud Model, ISSI SO2 Workshop, Bern, Switzerland

2014               Photochemical Control of the Distribution of Venusian Water and Comparison to Venus Express SOIR Observations. DPS 46, 302.02, Tucson, AZ.

2014               Cassini PSG 61, 62, 63, 64 Meeting Presentations

2014               Habitability of Enceladus: Planetarary Conditions for Life, Icy Worlds Workshop, Pasadena, CA

2013               Modeling Venus and Enceladus Aerosols using CARMA Microphysical Cloud Model, AGU, San Francisco, CA

2013               Cassini PSG 59, 60 Meeting Presentations

2013               Photochemical Distribution of Venusian Sulfur and Halogen Species, DPS, Denver, CO

2013               Photochemical Distribution of Venusian H2O and SOx with Results Regarding Transport from VTGCM/Modeling Venus Aerosols with CARMA Microphysical Cloud Model, ISSI SO2 Workshop, Bern, Switzerland

2012               Modeling Atmospheric Energy Deposition (by energetic ions); New Results, AGU, San Francisco, CA

2012               Modeling Atmospheric Energy Deposition (by energetic ions); New Results, European Space Weather Week, Brussels, Belgium

2012               Understanding Ground based and VEx Observations: Modeling Venus’ Upper Atmosphere and It’s Variability, DPS, Reno, NV

2012               Photochemical Processes and Their Modeling – A Comparative Planetary Perspective -Invited Talk, Comparative Climatology in Terrestrial Planets, Boulder, CO

2012               Understanding Ground based and VEx Observations: Modeling Venus’ Upper Atmosphere and It’s VariabilityVenus Express Team Meeting, Svalbard, Norway

2012               Understanding Ground based and VEx Observations: Modeling Venus’ Upper Atmosphere and It’s VariabilityEuroplanet, Paris, France

2011               Modeling Atmospheric Energy Deposition (by energetic ions), Fall Meeting, AGU, San Francisco

2011               Modeling of Observations of Night OH in the Venusian MesosphereEPSC-DPS, Nantes, France

2011               Habitability of Enceladus and Mars: Planetary Conditions for Life, EPSC-DPS, Nantes, France

2010               Hot Hydrogen/Proton Precipitation in Planetary Atmospheres, American Geophysical Union, San Francisco, CA

2010               Photochemical Distribution of Venusian Sulfur and Halogen Species, Division of Planetary Sciences (DPS) Meeting, Pasadena, CA

2010               Observations of night OH in the mesosphere of Venus, VEXAG Workshop, Madison, WI

2010               Photochemical Distribution of Venusian Sulfur and Halogen Species, VEXAG Workshop, Madison, WI

2010               Observations of night OH in the mesosphere of Venus, International Venus Conference, Aussois, France

2010               Photochemical Distribution of Venusian Sulfur and Halogen Species, International Venus Conference, Aussois, France 

2009               Hot Ion Precipitation in the Jovian and Saturnian Upper Atmopsheres, American Geophysical Union, San Francisco, CA

2009               Nightside Vibrational OH in Venus’ Upper Atmosphere, American Geophysical Union, San Francisco, CA 

2009               Night OH in the Atmosphere of Venus and Earth: A Comparative Planetary Study, American Astronomical Society, Division of Planetary Science, Puerto Rico

 

2009               Night OH in the Atmosphere of Venus and Earth: A Comparative Planetary Study, ESTEC, Noordwijk, Netherlands

 

2008               Hydrogen and Oxygen Hot Ion Precipitation in the Martian Ionosphere, American Geophysical Union, San Francisco, CA  

2008               Habitability on Enceladus: Planetary Conditions for Life, American Geophysical Union, San Francisco, CA

2008               Photochemical Distribution of Venusian Sulfur and Halogen Species, American Astronomical Society, Division of Planetary Science, Ithaca, NY 

2008               Photochemical Distribution of Venusian Sulphur and Halogen Species, Venus Express Workshop, Recontres de Moriande, La Thuile, Italy 

2008               Venus Thermospheric Circulation and its Impacts on Nightglow and Temperatures: Upgraded VTGCM Simulations for VEX and PVO, Venus Express Workshop, Recontres de Moriande, La Thuile, Italy 

2008               Habitability of Enceladus:  Planetary Conditions for Life, Astrobiology Science Conference 2008, Santa Clara, CA

2008               Hydrogen and Oxygen Hot Ion Precipitation in the Martian Ionosphere, SWIM (Solar Wind Interaction with Mars) Chapman Conference, AGU, San Diego, CA

2007               Hydrogen and Oxygen Hot Ion Precipitation in the Martian Ionosphere, American Geophysical Union, San Francisco, CA 

2007               Planetary Conditions for Habitability on Enceladus, American Astronomical Society, Division of Planetary Science, Pasadena, CA 

2006               Enceladus: Cassini observations and implications for the search for life, American Geophysical Union, San Francisco, CA 

2006               Photochemical Distribution of Venusian Sulphur and Halogen Species, American Astronomical Society, Division of Planetary Science, Pasadena, CA

2006               Enceladus: Cassini observations and implications for the search for life, Astrobiology 2006, Washington D.C. 

2005               American Astronomical Society, Division of Planetary Science, Cambridge, UK 

2004               American Astronomical Society, Division of Planetary Science, Louisville, KY 

2003               American Astronomical Society, Division of Planetary Science, Monterey, CA

2003               VPL Architecture, American Geophysical Union/European Geophysical Union, Nice, France

2002               American Astronomical Society, Division of Planetary Science, Birmingham, AL

2001               Deuterium in the Universe, Observatoire de Meudon, Meudon, France 

2001               American Astronomical Society, Division of Planetary Science, New Orleans, LA

2000               American Astronomical Society, Division of Planetary Science, Pasadena, CA 

1999               American Astronomical Society, Division of Planetary Science, Padova, Italy 

1998               American Astronomical Society, Division of Planetary Science, Madison, WI

1997               American Astronomical Society, Division of Planetary Science, Boston, MA 

1989               Non-local perturbation techniques applied to radiative transfer of planetary atmospheres, Canadian Assoc. of Physicists, Vancouver, BC 

1987               Eddy diffusion coefficient on Saturn from He 584 data, American Geophysical Union, San Francisco, CA 

1985               Fixed point solutions to the nonlinear Boltzmann equation, York University Summer Science Symposium

Updated: 2018-08-13