Sciences and Exploration Directorate

Charles Herbert Jackman


Charles Herbert Jackman's Contact Card & Information.
Phone: 301.614.6053
Org Code: 614
Mail Code 614
Greenbelt, MD 20771
Employer: EMERITUS

Brief Bio

Since 2015 - Emeritus Scientist, at the NASA Goddard Space Flight Center

1980-2014: Civil Servant, Physical Scientist, at the NASA Goddard Space Flight Center

Aeronomy of Ice in the Mesosphere (AIM) Mission Project Scientist (2009-2014)

Upper Atmosphere Research Satellite (UARS) Mission Project Scientist (1999-2006)

Upper Atmosphere Research Satellite (UARS) Mission Deputy Project Scientist (1993-1999)

1978-1980: Resident Research Associate (National Research Council) at the NASA Goddard Space Flight Center

Research Interests

1) Middle Atmospheric Chemistry and Dynamics; 2) Multi-dimensional Atmospheric Modelling; 3) Charged Particle Energy Deposition

Earth Science: Theory & Modeling


1972 - B.S. - Nebraska Wesleyan University, Physics and Mathematics (Highest Distinction)

1978 - Ph.D. - University of Florida, Department of Physics and Astronomy

Professional Societies

American Geophysical Union; Sigma Xi; Phi Beta Kappa; Phi Kappa Phi; Sigma Pi Sigma

1978 - Present


2007 Acknowledged by the Intergovernmental Panel on Climate Change for contributing to the award of the Nobel Peace Prize to IPCC; 2006 NASA Group Achievement Award to the UARS Team; 2003 Nebraska Wesleyan University Alumni Achievement Award; 2000 NASA/GSFC Group Achievement Award for Excellence in Outreach to UARS Project Science Team; 1999 NASA/GSFC Laboratory for Atmospheres General Recognition Peer Award; 1995 NASA/GSFC Special Act Group Award to UARS Recovery Team; 1995 NASA/GSFC Group Achievement Award to UARS Project Science Team; 1995 NASA Group Achievement Award to ASHOE/MAESA Experiment Team; 1994 NASA Group Achievement Award to SPADE Team; 1989 NASA Group Achievement Award to Ozone Trends Panel; 1988, 1996 NASA/GSFC Laboratory for Atmospheres Peer Award for Scientific Achievement; 1985, 1994, 1995, 1997, 1999, 2001, 2002, 2003, 2004 NASA/GSFC Certificate of Outstanding Performance; 1986, 1989, 1993 NASA/GSFC Quality Increase

Other Professional Information

Invited Talks:
2014 SCOSTEP 13th Solar Terrestrial Physics (STP) Symposium in Xian, China
2014 COSPAR Meeting in Moscow, Russia
2014 LWS Second Extreme Space Weather Events Workshop in Boulder, CO

2014 Eleventh Conference on Space Weather (American Meteorological Society) in Atlanta, GA
2013-14 ISSI Workshop on Quantifying Hemispheric Differences in Particle Forcing Effects on Stratospheric Ozone in Bern, Switzerland

2012 Fourth HEPPA Meeting in Boulder, CO
2012 SORCE Science Meeting in Annapolis, MD
2012 LWS Extreme Space Weather Events Workshop in Boulder, CO
2011 Fall AGU Meeting in San Francisco, CA
2011 National Research Council Effects of Solar Variability on Earth's Climate Workshop in Boulder, CO
2011 Third HEPPA Meeting in Granada, Spain
2010 COSPAR Meeting in Bremen, Germany
2009 LWS CDAW on Ground Level Enhancement Events in Palo Alto, CA
2008 COSPAR Meeting in Montreal, Canada
2008 First HEPPA Meeting in Helsinki, Finland
2007 IUGG Meeting in Perugia, Italy
2006 First SOLARIS Meeting in Boulder, CO
2006 Climate Variability and Extremes During the Past 100 Years in Gwatt, Switzerland
2005 ISSI Workshop on Solar Variability and Planetary Climates in Bern, Switzerland
2005 Space Weather Week in Broomfield, CO
2004 Challenges to Modeling the Sun-Earth System Workshop in Huntsville, AL
2004 COSPAR Meeting in Paris, France
2004 Solar Variability on Decadal to Millenial Timescales: Influence on Earth Climate Change and Prediction in Laurel, MD
2003 IUGG Meeting in Sapporo, Japan
2002 COSPAR Meeting in Houston, TX
2001 Gordon Research Conference on Atmospheric Chemistry in Newport, RI
2001 International Solar Cycle Studies Meeting in Longmont, CO
2001 Spring AGU Meeting in Boston, MA
2000 Fall AGU Meeting in San Francisco, CA
2000 International Astronautical Federation Meeting held in Rio de Janeiro, Brazil
1999 IUGG Meeting in Birmingham, England
1999 International Symposium on Aviation and the Global Atmosphere held in Amsterdam, The Netherlands
1998 COSPAR Meeting in Nagoya, Japan
1996 COSPAR Meeting in Birmingham, England
1995 Fall AGU Meeting in San Francisco, CA
1995 IUGG Meeting in Boulder, CO
1995 Spring AGU Meeting in Baltimore, MD
1994 Symposium on "Impact of Emissions from Aircraft and Spacecraft Upon the Atmosphere" in Cologne, Germany
1993 IAMAP/IAGA Joint Meeting in Yokohama, Japan
1991 IUGG Meeting in Vienna, Austria
1990 COSPAR Meeting in The Hague, The Netherlands
1989 IAGA Meeting in Exeter, England
1989 IAGA Symposium on "External Forcing of the Middle Atmosphere" at the Castle of Liblice, Czechoslovakia
1986 COSPAR Meeting in Toulouse, France  

Special Experience

16) Member of Organizing Committee for the Aspen Global Change Institute Workshop on Global Change and the Solar-Terrestrial Environment in Aspen, CO in June 2010.
15) Project Scientist for AIM (Aeronomy of Ice in the Mesosphere (since 2009).
14) Member of Scientific Committee for the Second International High-Energy Particle Precipitation in the Atmosphere (HEPPA) Workship, held in Boulder, CO in October 2009.
13) Member of Scientific Committee for the First International High-Energy Particle Precipitation in the Atmosphere (HEPPA) Workship, held in Helsinki, Finland in May 2008.
12) Guest Editor of the Solar Activity Forcing of the Middle Atmosphere Special Issue of Journal of Atmospheric and Solar-Terrestrial Physics (2005).
11) Project Scientist for UARS (1999-2006).
10) Co-chair of IAGA Working Group II.D, "External Forcing of the Middle Atmosphere" (1997-2011).
9) Member of PhD committee and Advisor to PhD Graduate Student Francis Vitt, University of Kansas (1993-1997).
8) Adjunct Professor, University of Kansas, since December, 1993.
7) Deputy Project Scientist for UARS (1993-1999).
6) Guest Editor of the Upper Atmosphere Research Satellite (UARS) Special Issue of Geophysical Research Letters (1993).
5) Participant in the Speaker's Bureau at NASA/GSFC since April 1989.
4) Advisor to students in 1987 and 1989 who were part of the Summer Institute for Atmospheric Sciences.
3) Editor of the "Conference Proceedings of the Two-Dimensional Intercomparison Workshop," held September 11-16, 1988 at Virginia Beach, VA.
2) Principal Investigator (since March 1987) of the "Fast Two-Dimensional Model" effort funded by NASA Headquarters' Upper Atmosphere Theory and Data Analysis Program
1) Assignment to NASA Headquarters July 1986 to October 1987 to assist with the Upper Atmosphere Theory and Data Analysis Program.



2019. "Impact of space weather on climate and habitability of terrestrial-type exoplanets." International Journal of Astrobiology 19 (2): 136-194 [10.1017/s1473550419000132] [Journal Article/Letter]

2018. "Effects of the September 2005 Solar Flares and Solar Proton Events on the Middle Atmosphere in WACCM." Journal of Geophysical Research: Space Physics 123 (7): 5747-5763 [10.1029/2018ja025294] [Journal Article/Letter]

2017. "Deriving Global OH Abundance and Atmospheric Lifetimes for Long-Lived Gases: A Search for CH3CCl3 Alternatives." Journal of Geophysical Research: Atmospheres [10.1002/2017jd026926] [Journal Article/Letter]

2017. "Atmospheric Beacons of Life from Exoplanets Around G and K Stars." Scientific Reports 7 (1): 14141 [10.1038/s41598-017-14192-4] [Journal Article/Letter]

2017. "Solar forcing for CMIP6 (v3.2)." Geoscientific Model Development 10 (6): 2247-2302 [10.5194/gmd-10-2247-2017] [Journal Article/Letter]

2016. "Comment on “Atmospheric ionization by high-fluence, hard spectrum solar proton events and their probable appearance in the ice core archive” by A. L. Melott et al." Journal of Geophysical Research: Atmospheres 121 (20): 12,484-12,489 [10.1002/2016jd025220] [Journal Article/Letter]

2016. "Impact of the January 2012 solar proton event on polar mesospheric clouds." J. Geophys. Res. Atmos. 121 (15): 9165-9173 [10.1002/2016jd024820] [Journal Article/Letter]

2016. "Atmospheric changes caused by galactic cosmic rays over the period 1960–2010." Atmos. Chem. Phys. 16 (9): 5853-5866 [10.5194/acp-16-5853-2016] [Journal Article/Letter]

2016. "Nitrate ion spikes in ice cores not suitable as proxies for solar proton events." J. Geophys. Res. Atmos. 121 (6): 2994-3016 [10.1002/2015jd023805] [Journal Article/Letter]

2015. "Measuring and modeling the lifetime of nitrous oxide including its variability." J. Geophys. Res. Atmos. 120 (11): 5693-5705 [10.1002/2015jd023267] [Journal Article/Letter]

2015. "CBrF3 (Halon-1301): UV absorption spectrum between 210 and 320K, atmospheric lifetime, and ozone depletion potential." Journal of Photochemistry and Photobiology A: Chemistry 306 13-20 [10.1016/j.jphotochem.2015.03.012] [Journal Article/Letter]

2015. "The impact of current CH4 and N2O atmospheric loss process uncertainties on calculated ozone abundances and trends." J. Geophys. Res. Atmos. 120 (10): 5267–5293 [10.1002/2014JD022067] [Journal Article/Letter]

2014. "Stratospheric ozone response to a solar irradiance reduction in a quadrupled CO 2 environment." Earth's Future 2 (7): 331-340 [10.1002/2014EF000244] [Journal Article/Letter]

2014. "Nitrate deposition to surface snow at Summit, Greenland, following the 9 November 2000 solar proton event." J. Geophys. Res. Atmos. 119 (11): 6938-6957 [10.1002/2013JD021389] [Journal Article/Letter]

2014. "Multimodel estimates of atmospheric lifetimes of long-lived ozone-depleting substances: Present and future." J. Geophys. Res. Atmos. 119 (5): 2555-2573 [10.1002/2013JD021097] [Journal Article/Letter]

2014. "Middle atmospheric changes caused by the January and March 2012 solar proton events." Atmos. Chem. Phys. 14 (2): 1025-1038 [10.5194/acp-14-1025-2014] [Journal Article/Letter]

2013. "CFCl3 (CFC-11): UV absorption spectrum temperature dependence measurements and the impact on its atmospheric lifetime and uncertainty." Geophys. Res. Lett. 40 (17): 4772-4776 [10.1002/grl.50915] [Journal Article/Letter]

2013. "NF₃ : UV absorption spectrum temperature dependence and the atmospheric and climate forcing implications." Geophys. Res. Lett. 40 (2): 440-445 [10.1002/grl.50120] [Journal Article/Letter]

2013. "Revised UV absorption spectra, ozone depletion potentials, and global warming potentials for the ozone-depleting substances CF₂Br₂, CF₂ClBr, and CF₂BrCF₂Br." Geophys. Res. Lett. 40 (2): 464-469 [10.1002/grl.50121] [Journal Article/Letter]

2013. "O (1D) Kinetic Study of Key Ozone Depleting Substances and Greenhouse Gases." J. Phys. Chem. A 117 (12): 2434-2445 [10.1021/jp312781c] [Journal Article/Letter]

2013. "The solar proton events in 2012 as observed by MIPAS." Geophys. Res. Lett. 40 (10): 2339-2343 [10.1002/grl.50119] [Journal Article/Letter]

2013. "1,2-Dichlorohexafluoro-cyclobutane (1,2-c-C4F6Cl2, R-316c) a Potent Ozone Depleting Substance and Greenhouse Gas: Atmospheric Loss Processes, Lifetimes, and Ozone Depletion and Global Warming Potentials for the ( E ) and ( Z ) Stereoisomers." J. Phys. Chem. A 117 (43): 11049-11065 [10.1021/jp407823k] [Journal Article/Letter]

2013. "Proton impact ionization and a fast calculation method." J. Geophys. Res. Space Physics 118 (8): 5369–5378 [10.1002/jgra.50484] [Journal Article/Letter]

2012. "Impact of January 2005 solar proton events on chlorine species." Atmos. Chem. Phys. 12 (9): 4159-4179 [10.5194/acp-12-4159-2012] [Journal Article/Letter]

2012. "Middle atmosphere response to different descriptions of the 11-yr solar cycle in spectral irradiance in a chemistry-climate model." Atmos. Chem. Phys. 12 (13): 5937-5948 [10.5194/acp-12-5937-2012] [Journal Article/Letter]

2011. "A model study of the impact of source gas changes on the stratosphere for 1850–2100." Atmos. Chem. Phys. 11 (16): 8515-8541 [10.5194/acp-11-8515-2011] [Journal Article/Letter]

2011. "Composition changes after the "Halloween" solar proton event: the High Energy Particle Precipitation in the Atmosphere (HEPPA) model versus MIPAS data intercomparison study." Atmos. Chem. Phys. 11 (17): 9089-9139 [10.5194/acp-11-9089-2011] [Journal Article/Letter]

2011. "Northern Hemisphere atmospheric influence of the solar proton events and ground level enhancement in January 2005." Atmos. Chem. Phys. 11 (13): 6153-6166 [10.5194/acp-11-6153-2011] [Journal Article/Letter]

2010. "UV absorption cross sections of nitrous oxide (N2O) and carbon tetrachloride (CCl4) between 210 and 350 K and the atmospheric implications." Atmos. Chem. Phys. 10 (13): 6137-6149 [10.5194/acp-10-6137-2010] [Journal Article/Letter]

2010. "Options to accelerate ozone recovery: ozone and climate benefits." Atmos. Chem. Phys. 10 (16): 7697-7707 [10.5194/acp-10-7697-2010] [Journal Article/Letter]

2009. "What would have happened to the ozone layer if chlorofluorocarbons (CFCs) had not been regulated?." Atmos. Chem. Phys. 9 (6): 2113-2128 [10.5194/acp-9-2113-2009] [Journal Article/Letter]

2009. "Long-term middle atmospheric influence of very large solar proton events." J. Geophys. Res. 114 (D11): D11304 [10.1029/2008JD011415] [Journal Article/Letter]

2008. "Electron impact ionization: A new parameterization for 100 eV to 1 MeV electrons." J Geophy Res 113 (A09311): [10.1029/2008JA013384] [Journal Article/Letter]

2008. "Stratospheric ozone variations caused by solar proton events between 1963 and 2005." Advances in Global Change Research (Climate Variability and Extremes during the Past 100 Years) 33 333-345 [10.1007/978-1-4020-6766-2_23] [Journal Article/Letter]

2008. "Short- and medium-term atmospheric constituent effects of very large solar proton events." Atmos. Chem. Phys. 8 (3): 765-785 [10.5194/acp-8-765-2008] [Journal Article/Letter]

2008. "Relationship of loss, mean age of air and the distribution of CFCs to stratospheric circulation and implications for atmospheric lifetimes." J. Geophys. Res. 113 (D14): D14309 [10.1029/2007JD009575] [Journal Article/Letter]

2007. "Dangerous human-made interference with climate: a GISS modelE study." Atmos. Chem. Phys. 7 (9): 2287-2312 [10.5194/acp-7-2287-2007] [Journal Article/Letter]

2007. "Climate simulations for 1880–2003 with GISS modelE." Clim Dyn 29 (7-8): 661-696 [10.1007/s00382-007-0255-8] [Journal Article/Letter]

2007. "Mesospheric dynamical changes induced by the solar proton events in October-November 2003." Geophys Res Lett 34 L04812 [Journal Article/Letter]

2007. "Modeling atmospheric effects of the September 1859 solar flare." Geophy Res Lett 34 L06810 [Journal Article/Letter]

2007. "Short- and medium-term atmospheric effects of very large solar proton events." Atmos Chem Phys Discuss 7 10543-10588 [Journal Article/Letter]

2007. "The impact of interannual variability on multidecadal total ozone simulations." J Geophys Res 112 D10310 [Journal Article/Letter]

2006. "Satellite Measurements of Middle Atmospheric Impacts by Solar Proton Events in Solar Cycle 23." Space Science Review 125 (1-4): 381-391 [10.1007/s11214-006-9071-4] [Journal Article/Letter]

2005. "The influence of the several very large solar proton events in years 2000-2003 on the neutral middle atmosphere." Adv. Space Res. 35 445-450 [Journal Article/Letter]

2005. "Gamma-Ray Bursts and the Earth: Exploration of Atmospheric, Biological, Climatic, and Biogeochemical Effects." The Astrophysical Journal 634 509-533 [Journal Article/Letter]

2005. "Efficacy of climate forcings." J. Geophys. Res. 110 (D18): D18104 [10.1029/2005JD005776] [Journal Article/Letter]

2005. "HNO3 , N2O5, and ClONO2 enhancements after the October–November 2003 solar proton events." J. Geophys. Res. 110 (A9): A09S44 [10.1029/2005JA011051] [Journal Article/Letter]

2005. "Climatic and biogeochemical effects of a galactic gamma ray burst." Geophysical Research Letters 32 (14): L14808 [10.1029/2005GL023073] [Journal Article/Letter]

2005. "Ozone depletion during the solar proton events of October/November 2003 as seen by SCIAMACHY." J Geophys Res 110 (A9): A09S39 [10.1029/2004JA010984] [Journal Article/Letter]

2005. "Neutral atmospheric influences of the solar proton events in October–November 2003." J. Geophys. Res. 110 (A9): A09S27 [10.1029/2004JA010888] [Journal Article/Letter]

2005. "Observation of NOx enhancement and ozone depletion in the Northern and Southern Hemispheres after the October–November 2003 solar proton events." J. Geophys. Res. 110 (A9): A09S43 [10.1029/2005JA011050] [Journal Article/Letter]

2005. "Simulation of the October–November 2003 solar proton events in the CMAM GCM: Comparison with observations." Geophysical Research Letters 32 (15): L15S02 [10.1029/2005GL022392] [Journal Article/Letter]

2005. "Terrestrial Ozone Depletion due to a Milky Way Gamma-Ray Burst." The Astrophys J 622 L153-L156 [Journal Article/Letter]

2004. "Did a Gamma-ray Burst Initiate the Late Ordovician Mass Extinction?." Int. J. Astrobiology 3 (1): 55-61 [10.1017/S1473550404001910] [Journal Article/Letter]

2004. "The Effect of Solar Proton Events on Ozone and Other Constituents." Solar Variability and its Effects on Climate, Geophys. Mon. 141 305-319 [Journal Article/Letter]

2004. "Separating chemistry and transport effects in two-dimensional models." J. Geophys. Res. 109 (D18): D18310 [10.1029/2004JD004744] [Journal Article/Letter]

2004. "A Virtual Observatory for the Ionosphere, Thermosphere, and Mesosphere community." AGU Fall Meeting Abstracts A8- [Journal Article/Letter]

2003. "Atmospheric Products from the Upper Atmosphere Research Satellite (UARS)." Adv. Sp. Res. 32 (9): 1807-1812 [10.1016/S0273-1177(03)00127-3] [Journal Article/Letter]

2003. "Ozone Depletion from Nearby Supernovae." Astrophys. J. 585 1169-1176 [Journal Article/Letter]

2003. "Potential impact of subsonic and supersonic aircraft exhaust on water vapor in the lower stratosphere assessed via a trajectory model." J. Geophys. Res. 108 (D3): 4103 [10.1029/2002JD002614] [Journal Article/Letter]

2003. "Overview of the Upper Atmosphere Research Satellite: Observations from 1991 to 2002." Adv. Sp. Res. 31 2101-2104 [Journal Article/Letter]

2003. "A model study of the impact of magnetic field structure on atmospheric composition during solar proton events." Geophys. Res. Lett. 30 (15): 1818 [10.1029/2003GL017265] [Journal Article/Letter]

2002. "Two-dimensional model simulations of the QBO in ozone and tracers in the tropical stratosphere." J. Geophys. Res. 107 (D23): 4665 [10.1029/2001JD001146] [Journal Article/Letter]

2002. "A cohesive total ozone data set from the SBUV(/2) satellite system." J. Geophys. Res. 107 (D23): 4701 [10.1029/2001JD000853] [Journal Article/Letter]

2001. "Northern Hemisphere Atmospheric Effects Due to the July 2000 Solar Proton Event." Geophys. Res. Lett. 28 2883-2886 [Journal Article/Letter]

2001. "Sensitivity of Tracers and a Stratospheric Aircraft Perturbation in Two-dimensional Model Transport Variations." J. Geophys. Res. 106 14245-14264 [Journal Article/Letter]

2000. "Detecting the Recovery of Total Column Ozone." J. Geophys. Res. 105 (D17): 22201-22210 [10.1029/2000JD900063] [Journal Article/Letter]

2000. "Computed Contributions to Odd Nitrogen Concentrations in the Earth's Polar Middle Atmosphere by Energetic Charged Particles." J. Atmos. Solar-Terr. Phys. 62 (8): 669-683 [10.1016/S1364-6826(00)00048-1] [Journal Article/Letter]

2000. "A Two-dimensional Model of Thermospheric Nitric Oxide Sources and Their Contributions to the Middle Atmospheric Chemical Balance." J. Atmos. Solar-Terr. Phys. 62 (8): 653-667 [10.1016/S1364-6826(00)00049-3] [Journal Article/Letter]

2000. "A Lagrangian View of Stratospheric Trace Gas Distributions." J. Geophys. Res. 105 (D1): 1537-1552 [10.1029/1999JD900787] [Journal Article/Letter]

2000. "Energetic Electrons and their Effects on Upper Stratospheric and Mesospheric Ozone in May 1992." Atmospheric Science Across the Stratopause (Geophysical Monograph Series) 137-142 [10.1029/GM123p0137] [Article in Book]

2000. "Influence of Extremely Large Solar Proton Events in a Changing Stratosphere." J. Geophys. Res. 105 11659-11670 [Journal Article/Letter]

2000. "Variation of Mesospheric Ozone during the Highly Relativistic Electron Event in May 1992 as Measured by the High Resolution Doppler Imager Instrument on UARS." J. Geophys. Res. 105 22943-22953 [Journal Article/Letter]

1999. "A Search of UARS Data for Ozone Depletions Caused by the Highly Relativistic Electron Precipitation Events of May 1992." J. Geophys. Res. 104 (A1): 165-175 [10.1029/1998JA900030] [Journal Article/Letter]

1999. "Simulation of Stratospheric Tracers Using an Improved Empirically Based Two-dimensional Model Transport,." J. Geophys. Res. 104 23911-23934 [Journal Article/Letter]

1999. "The Influence of Solar Proton Events on the Ozone Layer." Adv. Space Res. 24 625-630 [Journal Article/Letter]

1999. "A Monte Carlo Uncertainty Analysis of Ozone Trend Predictions in a Two-dimensional Model." J. Geophys. Res. 104 (D1): 1749-1765 [10.1029/1998JD100028] [Journal Article/Letter]

1998. "Aviation Fuel Tracer Simulation: Model Intercomparison and Implications." Geophys. Res. Lett. 25 (21): 3947-3950 [10.1029/1998GL900058] [Journal Article/Letter]

1998. "A Lagrangian Estimate of Aircraft Effluent Lifetime." J. Geophys. Res. 103 (D9): 10,817-10,825 [10.1029/98JD00363] [Journal Article/Letter]

1998. "A Global Modeling Study of Solid Rocket Aluminum Oxide Emission Effects on Stratospheric Ozone." Geophys. Res. Lett. 25 (6): 907-910 [10.1029/98GL00403] [Journal Article/Letter]

1998. "Distribution and Seasonal Variation of CFCs in the Stratosphere: Comparison of Satellite Global Data and a 2-D Model." Adv. Space Rev. 21 (10): 1383-1391 [10.1016/S0273-1177(97)00746-1] [Journal Article/Letter]

1998. "Selected Science Highlights from the First 5 Years of the Upper Atmosphere Research Satellite (UARS) Program." Rev. Geophys. 36 183-210 [Journal Article/Letter]

1998. "Interhemispheric Asymmetry in the 1 mbar O3 Trend: An Analysis Using an Interactive Zonal Mean Model and UARS Data." J. Geophys. Res. 103 1607-1618 [Journal Article/Letter]

1997. "Information Content for Ozone Trends and Solar Responses in the Stratosphere from Umkehr and SBUV(2) Satellite Data." J. Geophys. Res. 102 19257-19263 [Journal Article/Letter]

1997. "The Seasonal and Long Term Changes in Mesospheric Water Vapor." Geophys. Res. Lett. 24 639-642 [Journal Article/Letter]

1997. "Sensitivity and Uncertainty Studies of a Two-Dimensional Middle Atmospheric Ozone Model to Chemical Reaction Rates." J. Geophys. Res. 102 16201-16214 [Journal Article/Letter]

1997. "Observed Vertical Profile of Sulphur Hexafluoride (SF6) and Its Atmospheric Applications." J. Geophys. Res. 102 8855-8859 [Journal Article/Letter]

1997. "Stratopheric Effects of the Mt. Pinatubo Aeorosl Studied with a Coupled Two-Dimensional Model." J. Geophys. Res. 102 3649-3670 [Journal Article/Letter]

1996. "Balloon-borne Observations of Midlatitude Fluorine Abundance." J. Geophys. Res. 101 (D4): 9045-9054 [10.1029/96JD00227] [Journal Article/Letter]

1996. "A Comparison of Sources of Odd Nitrogen Production from 1974 through 1993 in the Earth's Atmosphere as Calculated Using a Two-Dimensional Model." J. Geophys. Res. 101 (D3): 6729-6739 [10.1029/95JD03386] [Journal Article/Letter]

1996. "The Space Shuttle's Impact on the Stratosphere: An Update." J. Geophys. Res. 101 12523-12529 [Journal Article/Letter]

1996. "Past, Present, and Future Modelled Ozone Trends with Comparisons to Observed Trends." J. Geophys. Res. 101 28753-28767 [Journal Article/Letter]

1995. "Balloon-Borne Observations of Mid-Latitude Hydrofluoric Acid." Geophys. Res. Lett. 22 (7): 835-838 [10.1029/95GL00006] [Journal Article/Letter]

1995. "The Middle Atmosphere Response to Short and Long Term Solar UV Variations: Analysis of Observations and 2D Model Results." J. Atmos. Terr. Phys. 57 333-365 [Journal Article/Letter]

1995. "Sensitivity of 2D Model Predictions of Ozone Response to Stratospheric Aircraft." J. Geophys. Res. 100 3075-3090 [Journal Article/Letter]

1995. "Relativistic Electron Fluxes in May 1992 and Their Effect on the Middle Atmosphere." J. Geophys. Res. 100 1027-1033 [Journal Article/Letter]

1995. "Recent Trends of Ozone in the Upper Stratosphere: Implications for Chlorine Chemistry." Geophys. Res. Lett. 22 843-846 [Journal Article/Letter]

1995. "Two-dimensional and three-dimensional model simulations, measurements, and interpretation of the influence of the October 1989 solar proton events on the middle atmosphere." J. Geophys. Res. 100 (D6): 11641-11660 [10.1029/95JD00369] [Journal Article/Letter]

1995. "Changes in the Concentration of Mesospheric O3 and OH During a Highly Relativistic Electron Precipitation Event." The Upper Mososphere and Lower Thermosphere: A Review of Experiment and Theory 215-223 [10.1029/GM087p0215] [Article in Book]

1995. "Mesospheric Heating During Highly Relativistic Electron Precipitation Events." J. Geomag. and Geoelect. 47 1237-1247 [Journal Article/Letter]

1994. "Effects of a Polar Stratospheric Cloud Parameterization on Ozone Depletion due to Stratospheric Aircraft in a 2D Model." J. Geophys. Res. 99 (D9): 18879-18894 [10.1029/94JD01026] [Journal Article/Letter]

1993. "Chlorine Catalyzed Destruction of Ozone: Implications for Ozone Variability in the Upper Stratosphere." Geophys. Res. Lett. 20 (5): 351-354 [10.1029/93GL00212] [Journal Article/Letter]

1993. "Energetic Particle Influences on NOy and Ozone the Middle Atmosphere." Interactions Between Global Climate Subsystems the Legacy of Hann (Geophysica Monograph Series) 131-139 [10.1029/GM075p0131] [Article in Book]

1993. "The Effects of the October 1989 Solar Proton Events on the Stratosphere as Computed Using a Three-Dimensional Model." Geophys. Res. Lett. 20 459-462 [Journal Article/Letter]

1992. "Ozone Depletion in the Upper Stratosphere Estimated from Satellite and Space Shuttle Data." Nature 358 131-133 [Journal Article/Letter]

1991. "The Influence of Dynamics on Two-Dimensional Model Results: Simulations of 14C and Stratospheric Aircraft NOx Injections." J. Geophys. Res. 96 22559-22572 [Journal Article/Letter]

1991. "Two-Dimensional Model Calculation of Fluorine-Containing Reservoir Species in the Stratosphere." J. Geophys. Res. 96 12865-12881 [Journal Article/Letter]

1991. "Impact of Interannual Variability (1979-86) of Transport and Temperature on Ozone as Computed Using a Two-Dimensional Photochemical Model." J. Geophys. Res. 96 5073-5079 [Journal Article/Letter]

1991. "Effects of Energetic Particles on Minor Constituents of the Middle Atmosphere." J. Geomag. and Geoelec. 43 (Suppl. 2): 637-646 [10.5636/jgg.43.Supplement2_637] [Journal Article/Letter]

1990. "Effect of Solar Proton Events on the Middle Atmosphere During the Past Two Solar Cycles as Computed Using a Two-dimensional Model." J. Geophys. Res. 95 (D6): 7417-7428 [10.1029/JD095iD06p07417] [Journal Article/Letter]

1990. "Comment on "Detection of Multiply Deuterated Methane in the Atmosphere"." Geophys. Res. Lett. 17 (5): 659-660 [10.1029/GL017i005p00659] [Journal Article/Letter]

1990. "On the Sensitivity of Residual Circulation Models to Temperature Data." J. Geophys. Res. 95 873-882 [Journal Article/Letter]

1990. "The Impact of the Space Shuttle on Stratospheric Chemistry and Ozone." J. Geophys. Res. 95 18583-18590 [Journal Article/Letter]

1989. "Comparison of Model Results Transporting the Odd Nitrogen Family with Results Transporting Separate Odd Nitrogen Species." J. Geophys. Res. 94 (D7): 9862-9872 [10.1029/JD094iD07p09862] [Journal Article/Letter]

1989. "Three Dimensional Simulation of Spatial and Temporal Variability of Stratospheric Hydrogen Chloride." Geophys. Res. Lett. 16 1149-1152 [Journal Article/Letter]

1989. "The Sensitivity of Total Ozone in a Two-dimensional Model Due to Dynamical Inputs." J. Geophys. Res. 94 9873-9887 [Journal Article/Letter]

1988. "Effect of Solar Proton Events in 1978 and 1979 on the Odd Nitrogen Abundance in the Middle Atmosphere." J. Geophys. Res. 93 (D6): 7084-7090 [10.1029/JD093iD06p07084] [Journal Article/Letter]

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