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Earth Sciences Division

Paul A. Newman

(Chief Scientist for Earth Sciences)

Paul A. Newman's Contact Card & Information.
Email: paul.a.newman@nasa.gov
Phone: 301.614.5985
Org Code: 610
Address:
NASA/GSFC
 Mail Code 614
 Greenbelt, MD 20771
Employer: UNIVERSITY OF MARYLAND BALTIMORE CO

Missions & Projects

Research Interests

Atmospheric Dynamics


Stratospheric Climatology


Stratospheric Ozone


Brief Bio

Dr. Paul A. Newman is the Chief Scientist for Earth Sciences at NASA's Goddard Space Flight Center in the Earth Sciences Division (Code 610), and a Senior Fellow for Goddard. Dr. Newman was the co-chair of the Scientific Assessment Panel (SAP) to the Montreal Protocol (2007-2023). The SAP is charged with drafting reports on the state of ozone depletion every four years. The most current report is "The Scientifc Assessment of Ozone Depletion: 2022." Dr. Newman is principally involved in the analysis of stratospheric meteorological and trace gas observations.


Dr. Newman is a Seattle native who graduated from O'Dea High School in 1974. He attended Seattle University and graduated in 1978 with a BS in Physics and a minor in mathematics. He completed his doctorate in physics at Iowa State University in 1984. From 1984 to 1986, Dr. Newman was a National Research Council fellow, worked for Applied Research Corporation from 1986 to 1989, and the Universities Space Research Associates from 1989 to 1990. He has been with NASA since 1990.


Dr. Newman's principal area of research is atmospheric dynamics and chemistry. He has participated in numerous aircraft field campaigns with his NASA, NOAA, and University colleagues, and actively researches dynamical and chemical processes.

Positions/Employment

Research and Teaching Assistant in Physics

Iowa State University - Ames, Iowa

1978 - 1981

 

L. H. Brown Pre-Doctoral Fellow

Iowa State University - Ames, IA

1982 - 1984

 

National Research Council Postdoctoral Fellow

National Research Council - NASA Goddard Space Flight Center, Greenbelt, MD

1984 - 1986

 

Research Scientist

Applied Research Corp. - Landover, MD

1986 - 1989

 

Scientist

Universities Space Research Association - NASA/GSFC Greenbelt, MD

1989 - 1990

 

AST

NASA/GSFC - NASA/GSFC, Greenbelt, MD

1990 - 2010

 

Chief Scientist for Atmospheres

NASA/GSFC - NASA/GSFC Greenbelt, MD

2010 - 2014

Chief Scientist for Earth Sciences

NASA Goddard Space Flight Center - Greenbelt, MD

2014 - Present

Education

1984 - Ph.D. - Physics, Iowa State University, Ames, IA
1978 - B.S. - Physics, minor in Mathematics, Seattle University, Seattle, WA Magna Cum Laude

Professional Societies

American Meteorological Society

1979 - Present

AMS Polar Meteorology and Oceanography Committee

1994

AMS Middle Atmosphere Committee

1994

American Geophysical Union

1979 - Present

Vienna Trust Fund Advisory Committee

2015 - Present

Professional Service

  • AASE theory team member (1988-1989)
  • AASE II theory team member (1991-1992)
  • SPADE theory team member (1992-1993)
  • ASHOE/MAESA theory team member (1994)
  • ERAST leadership team member (1994-1997)
  • Associate Editor, Journal of Geophysical Research (1997-2004)
  • Stratospheric Tracers of Atmospheric Transport (STRAT) Co-Project Scientist (1994-1997)
  • POLARIS Co-Project Scientist (1997)
  • SOLVE Co-Project Scientist (1999-2000)
  • International Council of Scientific Unions (ICSU), Solar-Terrestrial Energy Program (STEP), STEP Results, Applications, and Modeling Phase (SRAMP) Steering Committee Member
  • SOLVE-II Co-Project Scientist (2001-2002)
  • CRYSTAL-FACE ER-2 Platform Scientist (2002)
  • WMO/UNEP Scientific Assessment of Ozone Depletion: 2002, Polar Ozone Chapter lead author
  • Pre-AVE Co-Project Scientist (2004)
  • AVE Project Scientist (2004-2009)
  • Network for Detection of Stratospheric Change steering group member, 1994-2004
  • WMO/UNEP Scientific Assessment of Ozone Depletion: 2006, Polar Ozone Chapter lead author
  • Tropical Composition, Cloud and Climate Coupling (TC4) ER-2 platform scientist (2007)
  • Member of U.S. Climate Change Science Program's Synthesis and Assessment Product 2.4: Trends in Emissions of Ozone Depleting Substances, Ozone Layer Recovery, and Implications for Ultraviolet Radiation Exposure (2007)
  • Global Hawk Pacific Mission (GloPac) project scientist (2008-2011)
  • International Ozone Commission (2008-2016)
  • Montreal Protocol Scientific Assessment Panel, Co-Chair (2007-present)
  • Hurricane and Severe Storm Sentinel (HS3) - Deputy Project Scientist
  • Airborne Tropical TRopopause Experiment (ATTREX) - Global Hawk platform scientist
  • Stratospheric Processes And their Role in Climate (SPARC), Reevaluation of the Lifetimes of Dominant Stratospheric Ozone Depleting Substances (ODSs) activity (2011-2014)
  • USGCRP Strategic Plan Author (2011)
  • Southeast Asia Composition, Cloud, Climate Coupling Regional Study (SEAC4 RS) Science Team (2011-2012)
  • Lead for the Stratospheric Processes And their Role in Climate, Solving the Mystery of carbon tetrachloride activity (2015-present)
  • NASA GSFC Earth Sciences Division, Scientific Advisory Group (SAG), 2014-present
  • Atmospheric Tomography Mission (ATom) an Earth Venture Suborbital-2 program (2015-2021). Science Team Lead
  • Vice President, nternational Ozone Commission (2016-present)
  • American Geophysical Union, Atmospheric Sciences, President-elect (2019-present)

Awards

  • Magna Cum Laude, Seattle University
  • L. H. Brown Pre-Doctoral Fellow
  • Premium for Academic Excellence, 1984
  • National Research Council Postdoctoral Fellow, 1984-1986
  • NASA Group Achievement Award (AASE I)
  • NASA Group Achievement Award (Ozone Trends Panel)
  • NASA Group Achievement Award (Temperature Analysis Group)
  • AGU, Excellence in Reviewing award, 1993 JGR
  • GSFC Laboratory for Atmospheres Peer Award, 1993
  • NASA Group Achievement Award (AASE II), 1992
  • AGU, Excellence in Reviewing Award, 1994 JGR
  • NASA Group Achievement Award (Stratospheric Forecasting), 1994
  • NASA Group Achievement Award (SPADE),1994
  • Naval Research Laboratory’s Alan Berman Research Publication Award, 1995
  • NASA Group Achievement Award (ASHOE/MAESA), 1995
  • NASA Group Achievement Award (POLARIS), 1998
  • NASA GSFC Special Act Award (SOLVE), 2000
  • GSFC Laboratory for Atmospheres Peer Award, 2001
  • Arthur S. Flemming Award, 2002
  • NASA Group Achievement Award (SOLVE II), 2004
  • NASA Group Achievement Award (SOLVE II DC-8 Science Team), 2005
  • GSFC Laboratory for Atmospheres Peer Award, 2006 GSFC
  • Webby Award, NASA’s Ozone Watch, 2006 Official Nominee
  • William T. Pecora Award, Total Ozone Mapping Spectrometer Team, 2006
  • NASA Group Achievement Award (TOMS), 2006
  • NASA Group Achievement Award (TC-4 Science Team), 2008
  • Environmental Protection Agency Ozone Protection Award, 2009
  • Fellow of the American Geophysical Union, 2010
  • William Nordberg Memorial Award for Earth Sciences, 2011
  • NASA Group Achievement Award (GloPac Science Team), 2011
  • American Geophysical Union Bjerknes Lecturer, 2011
  • Fellow of the American Meteorological Society, 2012
  • Seattle University Alumni Professional Achievement Award, 2012
  • Senior Fellow, Goddard Space Flight Center, 2014
  • Robert H. Goddard Exceptional Achievement for Science Team, Chelyabinsk Bolide, 2014
  • NASA Group Achievement Award (SEAC4RS), 2014
  • NASA Group Achievement Award (HS3), 2015
  • NASA Group Achievement Award (ATTREX), 2016
  • Honorary Membership, Alpha Sigma Nu, 2017
  • NASA Distinguished Service Medal, 2017
  • Montreal Protocol Ozone Award for Scientific Leadership 2017
  • Champions of the Earth Award, United Nations Environment, 2017
  • American Geophysical Union Charney Lecturer, 2018
  • NASA Group Achievement Award (ATom), 2019.

Publications

Refereed

2025. "Hunga Tonga–Hunga Ha′apai Volcano Impact Model Observation Comparison (HTHH-MOC) project: experiment protocol and model descriptions." Geoscientific Model Development 18 (17): 5487-5512 [10.5194/gmd-18-5487-2025] [Journal Article/Letter]

2025. "Asian Summer Monsoon Anticyclone—The Primary Entryway for Chlorinated Very‐Short‐Lived Substances to the Stratosphere." Geophysical Research Letters 52 (3): [10.1029/2024gl110248] [Journal Article/Letter]

2024. "Gravity Wave–Induced Instability of the Stratospheric Polar Vortex Edge." Journal of the Atmospheric Sciences 81 (11): 1999-2013 [10.1175/jas-d-24-0005.1] [Journal Article/Letter]

2024. "Assessment of Landscape‐Scale Fluxes of Carbon Dioxide and Methane in Subtropical Coastal Wetlands of South Florida." Journal of Geophysical Research: Biogeosciences 129 (11): [10.1029/2024jg008165] [Journal Article/Letter]

2024. "Record High March 2024 Arctic Total Column Ozone." Geophysical Research Letters 51 (18): [10.1029/2024gl110924] [Journal Article/Letter]

2024. "Observational and model evidence for a prominent stratospheric influence on variability in tropospheric nitrous oxide." Atmospheric Chemistry and Physics 24 (18): 10513-10529 [10.5194/acp-24-10513-2024] [Journal Article/Letter]

2024. "2023 Antarctic ozone hole [in “State of the Climate in 2023”]." Bull. Amer. Meteor. Soc. 105 (8): S358-S361 [https://doi.org/10.1175/BAMS-D-24-0099.1] [Journal Article/Letter]

2024. "East Asian summer monsoon delivers large abundances of very short-lived organic chlorine substances to the lower stratosphere." Proceedings of the National Academy of Sciences 121 (12): [10.1073/pnas.2318716121] [Journal Article/Letter]

2024. "Simulating the Volcanic Sulfate Aerosols From the 1991 Eruption of Cerro Hudson and Their Impact on the 1991 Ozone Hole." Geophysical Research Letters 51 (5): e2023GL106619 [10.1029/2023gl106619] [Journal Article/Letter]

2024. "Stratospheric Temperature and Ozone Impacts of the Hunga Tonga‐Hunga Ha'apai Water Vapor Injection." Journal of Geophysical Research: Atmospheres 129 (1): [10.1029/2023jd039298] [Journal Article/Letter]

2023. "Impacts of Stratospheric Ozone Recovery on Southern Ocean Temperature and Heat Budget." Geophysical Research Letters 50 (18): [10.1029/2023gl103951] [Journal Article/Letter]

2023. "2022 Antarctic Ozone Hole [in “State of the Climate in 2022”]." Bull. Amer. Meteor. Soc 104 (9): s355-s359 [https://doi.org/10.1175/BAMS-D-23-0077.1] [Journal Article/Letter]

2023. "Multi-scale observations of mangrove blue carbon ecosystem fluxes: The NASA Carbon Monitoring System BlueFlux field campaign." Environmental Research Letters 18 075009 [10.1088/1748-9326/acdae6] [Journal Article/Letter]

2022. "A Multimodel Investigation of Asian Summer Monsoon UTLS Transport Over the Western Pacific." Journal of Geophysical Research: Atmospheres 127 (24): [10.1029/2022jd037511] [Journal Article/Letter]

2022. "Prescribing stratospheric chemistry overestimates southern hemisphere climate change during austral spring in response to quadrupled CO2." Climate Dynamics [10.1007/s00382-022-06588-4] [Journal Article/Letter]

2022. "Stratospheric Circulation Changes Associated with the Hunga Tonga‐Hunga Ha'apai Eruption." Geophysical Research Letters 49 [10.1029/2022gl100982] [Journal Article/Letter]

2022. "2021 Antarctic Ozone Hole [in “State of the Climate in 2021"]." Special Supplement to the Bulletin of the American Meteorological Society 103 (8): S332–S335 [https://doi.org/10.1175/2022BAMSStateoftheClimate] [Journal Article/Letter]

2022. "Seasonal Prediction of the Quasi‐Biennial Oscillation." Journal of Geophysical Research: Atmospheres 127 (6): [10.1029/2021jd036124] [Journal Article/Letter]

2022. "The NASA Atmospheric Tomography (ATom) Mission: Imaging the Chemistry of the Global Atmosphere." Bulletin of the American Meteorological Society 103 (3): E761-E790 [10.1175/bams-d-20-0315.1] [Journal Article/Letter]

2021. "Tracking aerosols and SO2 clouds from the Raikoke eruption: 3D view from satellite observations." Atmospheric Measurement Techniques 14 (12): 7545-7563 [10.5194/amt-14-7545-2021] [Journal Article/Letter]

2021. "The Montreal Protocol protects the terrestrial carbon sink." Nature 596 (7872): 384-388 [10.1038/s41586-021-03737-3] [Journal Article/Letter]

2021. "Prospect of Increased Disruption to the QBO in a Changing Climate." Geophysical Research Letters 48 (15): [10.1029/2021gl093058] [Journal Article/Letter]

2021. "Stratospheric impacts of continuing CFC‐11 emissions simulated in a chemistry‐climate model." Journal of Geophysical Research: Atmospheres [10.1029/2020jd033656] [Journal Article/Letter]

2020. "Seasonal Variation of the Quasi‐Biennial Oscillation Descent." Journal of Geophysical Research: Atmospheres 125 (18): [10.1029/2020jd033077] [Journal Article/Letter]

2020. "Stratospheric water vapor feedback and its climate impacts in the coupled atmosphere–ocean Goddard Earth Observing System Chemistry-Climate Model." Climate Dynamics 55 (5-6): 1585-1595 [10.1007/s00382-020-05348-6] [Journal Article/Letter]

2020. "Spatial heterogeneity in CO2, CH4, and energy fluxes: insights from airborne eddy covariance measurements over the Mid-Atlantic region." Environmental Research Letters 15 (3): 035008 [10.1088/1748-9326/ab7391] [Journal Article/Letter]

2020. "The Impact of Continuing CFC‐11 Emissions on Stratospheric Ozone." Journal of Geophysical Research: Atmospheres 125 (3): [10.1029/2019jd031849] [Journal Article/Letter]

2019. "Rare forecasted climate event under way in the Southern Hemisphere." Nature 573 (7775): 495-495 [10.1038/d41586-019-02858-0] [Journal Article/Letter]

2019. "Success of Montreal Protocol Demonstrated by Comparing High-Quality UV Measurements with “World Avoided” Calculations from Two Chemistry-Climate Models." Scientific Reports 9 (1): 12332 [10.1038/s41598-019-48625-z] [Journal Article/Letter]

2019. "2018 Antarctic ozone hole [in “State of the Climate in 2018"]." Bull. Amer. Meteor. Soc. 100 (9): S185-S187 [10.1175/2019BAMSStateoftheClimate.1] [Journal Article/Letter]

2018. "The way forward for Montreal Protocol science." Comptes Rendus Geoscience 350 (7): 442-447 [10.1016/j.crte.2018.09.001] [Journal Article/Letter]

2018. "30th anniversary of the Montreal Protocol: From the safeguard of the ozone layer to the protection of the Earth's climate." Comptes Rendus Geoscience 350 (7): 331-333 [10.1016/j.crte.2018.11.001] [Journal Article/Letter]

2018. "Antarctic ozone hole [in “State of the Climate in 2017”]." Bull. Amer. Meteor. Soc. 99 (8): s190-s192 [10.1175/2018BAMSStateoftheClimate.1] [Journal Article/Letter]

2018. "Forecasting carbon monoxide on a global scale for the ATom-1 aircraft mission: insights from airborne and satellite observations and modeling." Atmospheric Chemistry and Physics 18 (15): 10955-10971 [10.5194/acp-18-10955-2018] [Journal Article/Letter]

2018. "The Ozone Monitoring Instrument: overview of 14 years in space." Atmospheric Chemistry and Physics 18 (8): 5699-5745 [10.5194/acp-18-5699-2018] [Journal Article/Letter]

2018. "The NASA Carbon Airborne Flux Experiment (CARAFE): instrumentation and methodology." Atmospheric Measurement Techniques 11 (3): 1757-1776 [10.5194/amt-11-1757-2018] [Journal Article/Letter]

2018. "Effects of Greenhouse Gas Increase and Stratospheric Ozone Depletion on Stratospheric Mean Age of Air in 1960-2010." Journal of Geophysical Research: Atmospheres 123 (4): 2098-2110 [10.1002/2017jd027562] [Journal Article/Letter]

2017. "Current sources of carbon tetrachloride (CCl4) in our atmosphere." Environmental Research Letters [10.1088/1748-9326/aa9c87] [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. "Dynamics of the Disrupted 2015/16 Quasi-Biennial Oscillation." Journal of Climate 30 (15): 5661-5674 [10.1175/jcli-d-16-0663.1] [Journal Article/Letter]

2017. "Response of trace gases to the disrupted 2015–2016 quasi-biennial oscillation." Atmospheric Chemistry and Physics 17 (11): 6813-6823 [10.5194/acp-17-6813-2017] [Journal Article/Letter]

2017. "The Role of Sulfur Dioxide in Stratospheric Aerosol Formation Evaluated Using In-Situ Measurements in the Tropical Lower Stratosphere." Geophysical Research Letters [10.1002/2017gl072754] [Journal Article/Letter]

2016. "NASA’s Hurricane and Severe Storm Sentinel (HS3) Investigation." Bulletin of the American Meteorological Society 97 (11): 2085-2102 [10.1175/BAMS-D-15-00186.1] [Journal Article/Letter]

2016. "Early action on HFCs mitigates future atmospheric change." Environmental Research Letters 11 (11): 114019 [10.1088/1748-9326/11/11/114019] [Journal Article/Letter]

2016. "The Transit-Time Distribution from the Northern Hemisphere Midlatitude Surface." Journal of the Atmospheric Sciences 73 (10): 3785-3802 [10.1175/jas-d-15-0289.1] [Journal Article/Letter]

2016. "The anomalous change in the QBO in 2015-16." Geophysical Research Letters 43 [10.1002/2016gl070373] [Journal Article/Letter]

2016. "Impacts of Interactive Stratospheric Chemistry on Antarctic and Southern Ocean Climate Change in the Goddard Earth Observing System - Version 5 (GEOS-5)." Journal of Climate 29 (9): 3199–3218 [10.1175/JCLI-D-15-0572.1] [Journal Article/Letter]

2015. "Air-Mass Origin in the Arctic. Part II: Response to Increases in Greenhouse Gases." J. Climate 28 (23): 9105–9120 [10.1175/jcli-d-15-0296.1] [Journal Article/Letter]

2015. "Ozone Depletion by Hydrofluorocarbons." Geophysical Research Letters 42 [10.1002/2015GL065856] [Journal Article/Letter]

2015. "Airmass Origin in the Arctic. Part I: Seasonality." J. Climate 28 (12): 4997-5014 [10.1175/jcli-d-14-00720.1] [Journal Article/Letter]

2015. "Air-mass origin in the tropical lower stratosphere: The influence of Asian boundary layer air." Geophysical Research Letters 42 (10): 4240-4248 [10.1002/2015gl063937] [Journal Article/Letter]

2014. "Constraining the carbon tetrachloride (CCl4) budget using its global trend and inter-hemispheric gradient." Geophysical Research Letters 41 (14): 5307-5315 [10.1002/2014GL060754] [Journal Article/Letter]

2014. "The Antarctic Ozone Hole: an Update." Phys. Today 67 (7): 42-48 [10.1063/PT.3.2449] [Journal Article/Letter]

2014. "Measuring the Antarctic ozone hole with the new Ozone Mapping and Profiler Suite (OMPS)." Atmos. Chem. Phys. 14 (5): 2353-2361 [10.5194/acp-14-2353-2014] [Journal Article/Letter]

2014. "Seasonal ventilation of the stratosphere: Robust diagnostics from one-way flux distributions." J. Geophys. Res. Atmos. 119 (1): 293-306 [10.1002/2013JD020213] [Journal Article/Letter]

2014. "Seasonal variation of ozone in the tropical lower stratosphere: Southern tropics are different from northern tropics." J. Geophys. Res. Atmos. 119 6196-6206 [10.1002/2013JD021294] [Journal Article/Letter]

2014. "Assessment and applications of NASA ozone data products derived from Aura OMI/MLS satellite measurements in context of the GMI chemical transport model." J. Geophys. Res. Atmos. 119 (9): 5671-5699 [10.1002/2013JD020914] [Journal Article/Letter]

2014. "Modifications of the quasi-biennial oscillation by a geoengineering perturbation of the stratospheric aerosol layer." Geophys. Res. Lett. 41 (5): 1738–1744 [10.1002/2013GL058818] [Journal Article/Letter]

2013. "Sensitivity of the atmospheric response to warm pool El Niño events to modeled SSTs and future climate forcings." Journal of Geophysical Research: Atmospheres 118 (24): 13,371–13,382 [Full Text] [10.1002/2013JD021051] [Journal Article/Letter]

2013. "The contributions of chemistry and transport to low arctic ozone in March 2011 derived from Aura MLS observations." J. Geophys. Res. Atmos. 118 (3): 1563-1576 [10.1002/jgrd.50181] [Journal Article/Letter]

2013. "Net influence of an internally generated quasi-biennial oscillation on modelled stratospheric climate and chemistry." Atmos. Chem. Phys. 13 (24): 12187-12197 [10.5194/acp-13-12187-2013] [Journal Article/Letter]

2013. "New stratospheric dust belt due to the Chelyabinsk bolide." Geophys. Res. Lett 40 (17): 4728-4733 [10.1002/grl.50788] [Journal Article/Letter]

2013. "Correction to ‘Dispersion of the volcanic sulfate cloud from a Mount Pinatubo-like eruption’." J. Geophys. Res. 118 (14): 7849 [10.1002/jgrd.50616] [Journal Article/Letter]

2013. "The Response of Ozone and Nitrogen Dioxide to the Eruption of Mt. Pinatubo at Southern and Northern Midlatitudes." Journal of the Atmospheric Sciences 70 (3): 894-900 [10.1175/JAS-D-12-0143.1] [Journal Article/Letter]

2012. "Seasonal variations of stratospheric age spectra in the Goddard Earth Observing System Chemistry Climate Model (GEOSCCM)." J. Geophys. Res. 117 (D5): D05134 [10.1029/2011JD016877] [Journal Article/Letter]

2012. "Seasonal variations of stratospheric age spectra in the Goddard Earth Observing System Chemistry Climate Model (GEOSCCM)." J. Geophys. Res 117 10.1029/2011JD016877 [Journal Article/Letter]

2012. "Dispersion of the volcanic sulfate cloud from a Mount Pinatubo-like eruption." J. Geophys. Res. 117 (D6): D06216 [10.1029/2011JD016968] [Journal Article/Letter]

2012. "On the influence of North Pacific sea surface temperature on the Arctic winter climate." J Geophys Res 117 (D19): D19110 [10.1029/2012JD017819] [Journal Article/Letter]

2012. "Long-term changes in stratospheric age spectra in the 21st century in the Goddard Earth Observing System Chemistry-Climate Model (GEOSCCM)." J Geophys Res 117 (D20): D20119 [10.1029/2012JD017905] [Journal Article/Letter]

2011. "Projections of UV radiation changes in the 21st century: impact of ozone recovery and cloud effects." Atmos. Chem. Phys. 11 (15): 7533-7545 [10.5194/acp-11-7533-2011] [Journal Article/Letter]

2011. "The Arctic vortex in March 2011: a dynamical perspective." Atmos. Chem. Phys. 11 (22): 11,447-11,453 [Full Text] [10.5194/acp-11-11447-2011] [Journal Article/Letter]

2011. "Response of the Antarctic stratosphere to warm pool El Niño Events in the GEOS CCM." Atmos. Chem. Phys 11 9743-9767 [Journal Article/Letter]

2011. "The Impact of Stratospheric Ozone Changes on Downward Wave Coupling in the Southern Hemisphere." Journal of Climate 24 (16): 4210-4229 [10.1175/2011JCLI4170.1] [Journal Article/Letter]

2011. "UV impacts avoided by the Montreal Protocol." Photochem. Photobiol. Sci. 10 (7): 1152-1160 [10.1039/c0pp00387e] [Journal Article/Letter]

2011. "Multimodel climate and variability of the stratosphere." J. Geophys. Res. 116 (D5): D05102 [10.1029/2010JD014995] [Journal Article/Letter]

2011. "Ozone Depletion, [in “State of the Climate in 2010”]." Bull. Amer. Meteor. Soc 92 (6): S170-171 [Journal Article/Letter]

2011. "Response of the Antarctic stratosphere to warm pool El Niño Events in the GEOS CCM." Atmos. Chem. Phys. 11 (18): 9659-9669 [10.5194/acp-11-9659-2011] [Journal Article/Letter]

2011. "Response of the Antarctic Stratosphere to Two Types of El Niño Events." J Atmos Sci 68 (4): 812-822 [10.1175/2011JAS3606.1] [Journal Article/Letter]

2010. "21st century trends in Antarctic temperature and polar stratospheric cloud (PSC) area in the GEOS chemistry-climate model." J. Geophys. Res 115 (D19): D19109 [10.1029/2009JD013397] [Journal Article/Letter]

2010. "Ozone Depletion, [in “State of the Climate in 2009”]." Bull. Amer. Meteor. Soc 91 (7): S133-134 [Journal Article/Letter]

2010. "Relationships between the Brewer-Dobson circulation and the southern annular mode during austral summer in coupled chemistry-climate model simulations,." J. Geophys. Res 115 [Journal Article/Letter]

2010. "A meteorological overview of the TC4 mission." J. Geophys. Res 115 D00J12 [10.1029/2009JD013316] [Journal Article/Letter]

2010. "Narrowing of the upwelling branch of the Brewer-Dobson circulation and Hadley cell in chemistry-climate model simulations of the 21st century." Geophys. Res. Lett 37 [Journal Article/Letter]

2010. "Mechanisms and feedback causing changes in upper stratospheric ozone in the 21st century." J. Geophys. Res 115 [Journal Article/Letter]

2010. "Relative Contribution of Greenhouse Gases and Ozone-Depleting Substances to Temperature Trends in the Stratosphere: A Chemistry–Climate Model Study." Journal of Climate 23 (1): 28-42 [10.1175/2009JCLI2955.1] [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. "Relationships between the Brewer-Dobson circulation and the southern annular mode during austral summer in coupled chemistry-climate model simulations." J Geophys Res 115 (D15): D15106 [10.1029/2009JD012876] [Journal Article/Letter]

2010. "Narrowing of the upwelling branch of the Brewer-Dobson circulation and Hadley cell in chemistry-climate model simulations of the 21st century." Geophys Res Lett 37 (13): L13702 [10.1029/2010GL043718] [Journal Article/Letter]

2010. "A meteorological overview of the TC⁴ mission." J. Geophys. Res. 115 (D10): D00J12 [10.1029/2009JD013316] [Journal Article/Letter]

2010. "Planning, implementation, and first results of the Tropical Composition, Cloud and Climate Coupling Experiment (TC4)." J. Geophys. Res. 115 D00J04 [10.1029/2009JD013073] [Journal Article/Letter]

2010. "Assessment of the breakup of the Antarctic polar vortex in two new chemistry-climate models." J Geophys Res 115 (D7): D07105 [10.1029/2009JD012788] [Journal Article/Letter]

2009. "Sensitivity of polar stratospheric ozone loss to uncertainties in chemical reaction kinetics." Atmos. Chem. Phys 9 8651-8660 [10.5194/acp-9-8651-2009] [Journal Article/Letter]

2009. "“State of the Climate in 2008”." Bull. Amer. Meteor. Soc 90 S1-S196 [Journal Article/Letter]

2009. "Ozone and UV: Where are we now?." Skin Canc. Found. J. XXVII 38-42 [Journal Article/Letter]

2009. "Impacts of climate change on stratospheric ozone recovery." Geophysical Research Letters 36 (3): L03805 [10.1029/2008GL036223] [Journal Article/Letter]

2009. "Stratospheric ozone in the post-CFC era." Atmos. Chem. Phys. 9 (6): 2207-2213 [10.5194/acp-9-2207-2009] [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. "Sensitivity of polar stratospheric ozone loss to uncertainties in chemical reaction kinetics." Atmos. Chem. Phys. 9 (22): 8651-8660 [10.5194/acp-9-8651-2009] [Journal Article/Letter]

2009. "Effect of zonal asymmetries in stratospheric ozone on simulated Southern Hemisphere climate trends." Geophys Res Lett 36 (18): L18701 [10.1029/2009GL040419] [Journal Article/Letter]

2009. "On the influence of anthropogenic forcings on changes in the stratospheric mean age." J. Geophys. Res. 114 (D3): D03105 [10.1029/2008JD010378] [Journal Article/Letter]

2008. "QBO and annual cycle variations in tropical lower stratosphere trace gases from HALOE and Aura MLS observations." J. Geophys. Res 113 [Journal Article/Letter]

2008. "Evaluation of emissions and transport of CFCs using surface observations and their seasonal cycles and the GEOS CCM simulation with emissions-based forcing." J. Geophys. Res 113 [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 [Journal Article/Letter]

2008. "Goddard Earth Observing System chemistry-climate model simulations of stratospheric ozone-temperature coupling between 1950 and 2005." J. Geophys. Res 113 [Journal Article/Letter]

2008. "Goddard Earth Observing System chemistry-climate model simulations of stratospheric ozone temperature coupling between 1950 and 2005." J Geophy Res Atmos 113 (D12, D12103, doi:10): [Journal Article/Letter]

2008. "QBO and annual cycle variations in tropical lower stratosphere trace gases from HALOE and Aura MLS observations." J Geophy Res 113 (D5, D05301, 101029/): [Journal Article/Letter]

2008. "Evaluation of emissions and transport of CFCs using surface observations and their seasonal cycles and the GEOS CCM simulation with emissions-based forcing." J. Geophys. Res. 113 (D14): D14302 [10.1029/2007JD009617] [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]

2008. "HIRDLS observations and simulation of a lower stratospheric intrusion of tropical air to high latitudes." Geophysical Research Letters 35 (21): L21813 [10.1029/2008GL035514] [Journal Article/Letter]

2007. "Ozone Depletion, [in “State of the Climate in 2007”]." Bull. Amer. Meteor. Soc 89 S104-105 [Journal Article/Letter]

2007. "Austral springtime ozone depletion (in State of the Climate in 2006)." Bull. Amer. Meteor. Soc 88 S75-76 [10.1175/BAMS-88-6-929] [Journal Article/Letter]

2007. "Multimodel projections of stratospheric ozone in the 21st century." J. Geophys. Res. 112 (D16): D16303 [10.1029/2006JD008332] [Journal Article/Letter]

2007. "Transport and Modeling of Stratospheric Inorganic Chlorine." Atmos. Chem. and Phys 18 [Journal Article/Letter]

2007. "A new formulation of equivalent effective stratospheric chlorine." Atmos. Chem. Phys 7 4537-4552 [10.5194/acp-7-4537-2007] [Journal Article/Letter]

2007. "Sensitivity of stratospheric inorganiz chlorine to differences in transport." Atmos Chem Phys 7 2435-2445 [Journal Article/Letter]

2007. "Variations in stratospheric inorganic chlorine between 1991 and 2006." GeopHy Res Lett 34 L21811 [Journal Article/Letter]

2006. "An ozone increase in the Antarctic summer stratosphere: A dynamical response to the ozone hole." Geophys Res Lett 33 L21805 [10.1029/2006GL026820] [Journal Article/Letter]

2006. "Assessment of temperature, trace species, and ozone in chemistry-climate model simulations of the recent past." J. Geophys. Res. 111 (D22): D22308 [10.1029/2006JD007327] [Journal Article/Letter]

2006. "When will the Antarctic ozone hole recover?." Geophysical Research Letters 33 (12): L12814 [10.1029/2005GL025232] [Journal Article/Letter]

2005. "A strategy for process-oriented validation of coupled chemistry-climate models." B. Amer. Met. Soc 86 (8): 1117-1133 [10.1175/BAMS-86-8-1117] [Journal Article/Letter]

2005. "The unusual Southern Hemisphere stratosphere winter of 2002." J. Atmos. Sci 62 614-628 [Journal Article/Letter]

2005. "The ozone hole of 2002 as measured by TOMS,." J. Atmos. Sci 62 716-720 [Journal Article/Letter]

2005. "Fall vortex ozone as a predictor of springtime total ozone at high northern latitudes." Atmos Chem Phys 5 1655-1663 [Journal Article/Letter]

2004. "Interannual variability of stratospheric trace gases: The role of extratropical wave driving." Q. J. R. Meteorol. Soc. 130 (602): 2459-2474 [10.1256/qj.04.28] [Journal Article/Letter]

2004. "Validating AIRS upper atmosphere water vapor retrievals using aircraft and balloon in situ measurements." Geophys. Res. Lett 31 (21): L21103 [Journal Article/Letter]

2004. "Interannual variability of stratospheric trace gases: The role of extratropical wave driving." Met. Soc 130 2459-2474 [Journal Article/Letter]

2004. "On the size of the Antarctic ozone hole." Geophys. Res. Lett 31 (21): L21104 [Journal Article/Letter]

2004. "Non-coincident inter-instrument comparisons of ozone measurements using quasi-conservative coordinates." Atmos. Chem. Phys 4 2345-2352 [Journal Article/Letter]

2004. "The Cumulus Parameterization Problem: Past, Present, and Future." Journal of Climate 17 (13): 2493-2525 [10.1175/1520-0442(2004)017<2493:RATCPP>2.0.CO;2] [Journal Article/Letter]

2003. "Uncertainties and assessments of chemistry-climate models of the stratosphere." Atmos. Chem. Phys. 3 (1): 1-27 [10.5194/acp-3-1-2003] [Journal Article/Letter]

2002. "An overview of the SOLVE/THESEO 2000 campaign." J. Geophys. Res 107 (D20): SOL 1-1–SOL 1-26 [10.1029/2001JD001303] [Journal Article/Letter]

2002. "Mixing events revealed by anomalous tracer relationships in the Arctic vortex during winter 1999/2000." J. Geophys. Res 107 [Journal Article/Letter]

2002. "An assessment of the ozone loss during the 1999-2000 SOLVE/THESEO 2000 Arctic campaign." J. Geophys. Res. 107 (D20): SOL 3-1–SOL 3-15 [10.1029/2001JD000412] [Journal Article/Letter]

2002. "Ozone loss from quasi-conservative coordinate mapping during the 1999-2000 SOLVE/THESEO 2000 campaigns." J. Geophys. Res 107 [Journal Article/Letter]

2002. "Photochemical ozone loss in the Arctic as determined by MSX/UVISI stellar occultation observations during the 1999/2000 winter." J. Geophys. Res 107 [Journal Article/Letter]

2001. "Chance encounter with a stratospheric kerosene rocket plume from Russia over California." Geophys. Res. Lett 28 (6): 959-962 [10.1029/2000GL011972] [Journal Article/Letter]

2001. "Inorganic chlorine partitioning in the summer lower stratosphere: Modeled and measured [ClONO 2 ]/[HCl] during POLARIS." J. Geophys. Res. Atmos. 106 (D2): 1713-1732 [10.1029/2000JD900494] [Journal Article/Letter]

2001. "Observational evidence for the role of denitrification in Arctic stratospheric ozone loss,." Geophys. Res. Lett 28 2879-2882 [Journal Article/Letter]

2001. "Severe and extensive denitrification in the 1999-2000 Arctic winter stratosphere." Geophys. Res. Lett 28 2875-2878 [Journal Article/Letter]

2001. "What controls the temperature of the Arctic stratosphere during the spring?." J. Geophys. Res 106 19999-20010 [Journal Article/Letter]

2000. "Quantifying the Wave Driving of the Stratosphere." J. Geophys. Res.-Atmos 105 12485-12497 [Journal Article/Letter]

2000. "Quantifying Denitrification and its Effect on Ozone Recovery." Science 288 1407-1411 [Journal Article/Letter]

1999. "An Investigation of ClO Photochemistry in the Chemically Perturbed Arctic Vortex." J. of Atmos. Chem 32 (1): 61-81 [10.1023/A:1006136712267] [Journal Article/Letter]

1999. "Assessment of the Effects of High-Speed Aircraft in the Stratosphere: 1998." NASA/TP-1999-209237 [Other]

1999. "Intercomparison of total ozone observations at Fairbanks, Alaska, during POLARIS." J. Geophys. Res.-Atmos 104 26767-26778 [Journal Article/Letter]

1999. "Persistence of the Lower Stratospheric Polar Vortices." J. Geophys. Res 104 [Journal Article/Letter]

1999. "Preface: Photochemistry of Ozone Loss in the Arctic Region in Summer (POLARIS)." J. Geophys. Res 104 26481-26496 [Journal Article/Letter]

1999. "A Comparison of Observations and m Model Simulations of NOx/NOy in the Lower Stratosphere." Geophys. Res. Lett 26 (8): 1153-1156 [10.1029/1999GL900162] [Journal Article/Letter]

1998. "Comparison Between DC-8 and ER-2 Species Measurements in the Tropical Middle Troposphere: NO, NOy, O3, CO2, CH4, and N2O." J. Geophys. Res 103 (D17): 22087-22096 [10.1029/98JD01421] [Journal Article/Letter]

1998. "Denitrification Observed Inside the Arctic Vortex in February 1995." J. Geophys. Res 103 (D13): 16221-16233 [10.1029/98JD01083] [Journal Article/Letter]

1998. "Dehydration and Denitrification in the Arctic Polar Vortex During the 1995-1996 Winter." Geophys. Res. Lett 25 (4): 501-504 [10.1029/98GL00115] [Journal Article/Letter]

1998. "Preserving the Earth’s Stratosphere." Mech. Engineering 120 88-91 [Journal Article/Letter]

1997. "Diabatic Cross-Isentropic Dispersion in the Lower Stratosphere." J. Geophys. Res 102 (D22): 25817-25829 [10.1029/97JD01968] [Journal Article/Letter]

1997. "Anomalously Low Ozone Over the Arctic." Geophys. Res. Lett 24 (22): 2689-2692 [10.1029/97GL52831] [Journal Article/Letter]

1997. "Dynamical Proxies of Column Ozone with Applications to Global Trend Models." J. Geophys. Res 102 (D5): 6117-6129 [10.1029/96JD03783] [Journal Article/Letter]

1997. "Mixing of Polar Vortex Air Into Middle Latitudes as Revealed by Tracer-Tracer Scatterplots." J. Geophys. Res 102 13119-13134 [Journal Article/Letter]

1997. "Meteorology of the Polar Vortex: Spring 1997." Geophys. Res. Lett 24 (22): 2693-2696 [Journal Article/Letter]

1997. "Activation of Chlorine in Sulfate Aerosol as Inferred from Aircraft Observations." J. Geophys. Res 102 (D3): 3921-3933 [10.1029/96JD01992] [Journal Article/Letter]

1997. "Stratospheric Thermal Damping Times." Geophys. Res. Lett 24 433-436 [Journal Article/Letter]

1996. "Development of the Antarctic Ozone Hole." J. Geophys. Res 101 (D15): 20909–20924 [10.1029/96JD01707] [Journal Article/Letter]

1996. "Measurements of polar vortex air in the midlatitudes." J. Geophys. Res. 101 (D8): 12879-12891 [10.1029/95jd03387] [Journal Article/Letter]

1996. "An Objective Determination of the Polar Vortex Using Ertel’s Potential Vorticity." J. Geophys. Res 101 (D5): 9471-9478 [10.1029/96JD00066] [Journal Article/Letter]

1996. "Ozone Change from 1992 to 1993 as Observed from SSBUV on the ATLAS-1 and ATLAS-2 Missions." Geophys. Res. Lett 2305-2308 [Journal Article/Letter]

1996. "Stratospheric Horizontal Wave-Number Spectra of Winds, Potential Temperature, and Atmospheric Tracers Observed by High-Altitude Aircraft." J. Geophys. Res 101 9441-9470 [Journal Article/Letter]

1996. "Measurements of Polar Vortex Air in Midlatitudes." J. Geophys. Res 101 12879-12891 [Journal Article/Letter]

1995. "A Reinterpretation of the Data From the NASA Stratosphere-Troposphere Exchange Project." Geophys. Res. Lett 22 (18): 2501-2504 [10.1029/95GL02220] [Journal Article/Letter]

1995. "Trajectory Modelling of Emissions from Lower Stratospheric Aircraft." J. Geophys. Res. 100 1427-1438 [Journal Article/Letter]

1995. "A Multiple Level Trajectory Analysis of Vortex Filaments." J. Geophys. Res 100 (D12): 25,801-25,815 [10.1029/95JD02414] [Journal Article/Letter]

1995. "Trajectory mapping and applications to data from the Upper Atmosphere Research Satellite." J. Geophys. Res. 100 (D8): 16491-16505 [10.1029/95JD01072] [Journal Article/Letter]

1995. "Meteor-3/TOMS Observations of the 1994 Ozone Hole." Geophys. Res. Lett 22 3227-3229 [Journal Article/Letter]

1995. "Meteor-3 Total Ozone Mapping Spectrometer Observations of the 1993 Ozone Hole." J. Geophys. Res 100 2973-2983 [Journal Article/Letter]

1994. "Correlation of Ozone Loss with the Presence of Volcanic Aerosols." Geophys. Res. Lett 21 (25): 2801-2804 [10.1029/94GL02350] [Journal Article/Letter]

1994. "Computations of Diabatic Descent in the Stratospheric Polar Vortex." J. Geophys. Res 99 (D8): 16677-16689 [10.1029/94JD01156] [Journal Article/Letter]

1994. "A Comparison of Winds From the STRATAN Data Assimilation System to Balanced Wind Estimates." J. Atmos. Sci 51 (15): 2309-2315 [10.1175/1520-0469(1994)051<2309:ACOWFT>2.0.CO;2] [Journal Article/Letter]

1994. "Antarctic Total Ozone in 1958." Science 264 (5158): 543-546 [10.1126/science.264.5158.543] [Journal Article/Letter]

1994. "An Algorithm for Forecasting Mountain Wave-Related Turbulence in the Stratosphere." Weather and Forecasting 9 (2): 241-253 [10.1175/1520-0434(1994)009<0241:AAFFMW>2.0.CO;2] [Journal Article/Letter]

1994. "Intrusions Into the Lower Stratospheric Arctic Vortex During the Winter of 1991-1992." J. Geophys. Res 99 1089-1105 [Journal Article/Letter]

1994. "Transport Out of the Lower Stratospheric Arctic Vortex by Rossby Wave Breaking." J. Geophys. Res 99 1071-1088 [Journal Article/Letter]

1994. "Fine-Scale, Poleward Transport of Tropical Air During AASE 2." Geophys. Res. Lett 21 2603-2606 [Journal Article/Letter]

1994. "UARS MLS O3 Soundings Compared with Lidar Measurements Using the Conservative Coordinates Reconstruction Technique." Geophys. Res. Lett 21 1535-1538 [Journal Article/Letter]

1993. "Chlorine Chemistry on Polar Stratospheric Cloud Particles in the Arctic Winter." Science 261 (5125): 1130-1134 [10.1126/science.261.5125.1130] [Journal Article/Letter]

1993. "Stratospheric Meteorological Conditions in the Arctic Polar Vortex, 1991 to 1992." Science 261 (5125): 1143-1146 [10.1126/science.261.5125.1143] [Journal Article/Letter]

1993. "Chemical Loss of Ozone in the Arctic Polar Vortex in the Winter of 1991-1992." Science 261 (5125): 1146-1149 [10.1126/science.261.5125.1146] [Journal Article/Letter]

1993. "New Observations of the Noy/N2O Correlation in the Lower Stratosphere." Geophys. Res. Lett 20 2531-2534 [Journal Article/Letter]

1993. "MLS ClO Observations and Arctic Polar Vortex Temperatures." Geophys. Res. Lett 20 2861-2864 [Journal Article/Letter]

1993. "Interpretation of NOx/NOy Observations from AASE-II Using a Model of Chemistry Along Trajectories." Geophys. Res. Lett 20 2507-2510 [Journal Article/Letter]

1993. "Record Low Global Ozone in 1992." Science 260 523-526 [Journal Article/Letter]

1993. "Volcanic and Wave-Cloud Optical Depth Spectra from DC-8 Tracking Sunphotometer Measurements: 1. Results vs .Latitude, Time, and Vortex Structure." Geophys. Res. Lett 22 2571-2574 [Journal Article/Letter]

1993. "The Evolution of ClO and NO along Air Parcel Trajectories." Geophys. Res. Lett 20 2511-2514 [Journal Article/Letter]

1993. "The Seasonal Evolution of Reactive Chlorine in the Northern Hemisphere Stratosphere." Science 261 1134-1136 [Journal Article/Letter]

1993. "Heterogeneous Reaction Probabilities, Solubilities, and Physical State of Cold Volcanic Aerosols." Science 261 1136-1140 [Journal Article/Letter]

1992. "An investigation into the causes of stratospheric ozone loss in the southern Australasian Region." Geophys. Res. Lett 19 (14): 1463-1466 [10.1029/92GL01443] [Journal Article/Letter]

1992. "Evidence for Subsidence in the 1989 Arctic Winter Stratosphere from Airborne Infrared Composition Measurements." J. Geophys. Res 97 7963-7970 [Journal Article/Letter]

1992. "The Structure of the Polar Vortex." J. Geophys. Res 97 7859-7882 [Journal Article/Letter]

1992. "A Simulation of the Cerro Hudson SO₂ Cloud." J. Geophys. Res 98 (D2): 2949-2955 [10.1029/92JD02517] [Journal Article/Letter]

1992. "The 1991 Antarctic Ozone Hole: TOMS Observations." Geophys. Res. Lett 12 1215-1218 [Journal Article/Letter]

1992. "Long-term Winter Total Ozone Changes at Macquarie Island." Geophys. Res. Lett 19 1459-1462 [Journal Article/Letter]

1991. "Depletion of Arctic Ozone in the Winter 1990." Geophys. Res. Lett 18 (4): 791-794 [10.1029/91GL00467] [Journal Article/Letter]

1991. "Reactive Nitrogen, Ozone, and Nitrate Aerosols Observed in the Arctic Stratosphere in January 1990." J. Geophys. Res 97 13025-13038 [Journal Article/Letter]

1991. "The 1989 Antarctic Ozone Hole as Observed by TOMS." Geophys. Res. Lett 18 661-664 [Journal Article/Letter]

1991. "The 1990 Antarctic Ozone Hole as Observed by TOMS." Geophys. Res. Lett 18 661-664 [Journal Article/Letter]

1991. "Spatial and Temporal Variability of the Extent of Chemically Processed Stratospheric Air." Geophys. Res. Lett 18 29-32 [Journal Article/Letter]

1990. "Comparison of ozone profiles from ground-based lidar, electrochemical concentration cell balloon sonde, ROCOZ-A rocket ozonesonde, and Stratospheric Aerosol and Gas Experiment satellite measurements." J. Geophys. Res 95 (D7): 10037-10042 [10.1029/JD095iD07p10037] [Journal Article/Letter]

1990. "Effects of Atmospheric Transport on Column Abundances of Nitrogen and Chlorine Compounds in the Arctic Stratosphere." Geophys. Res. Lett 17 (4): 533-536 [10.1029/GL017i004p00533] [Journal Article/Letter]

1990. "Airborne Measurements of Stratospheric Constituents Over the Arctic in the Winter of 1989." Geophys. Res. Lett 17 (4): 473-476 [10.1029/GL017i004p00473] [Journal Article/Letter]

1990. "ER-2 Mountain Wave Encounter Over Antarctica: Evidence for Blocking." Geophys. Res. Lett 17 (1): 81-84 [10.1029/GL017i001p00081] [Journal Article/Letter]

1990. "Lidar Observations of Ozone Changes Induced by Air Mass Motions." J. Geophys. Res 95 20527-20530 [Journal Article/Letter]

1990. "Loss of Ozone in the Arctic Vortex for the Winter of 1989." Geophys. Res. Lett 17 561-564 [Journal Article/Letter]

1990. "Three Dimensional Simulation of Hydrogen Chloride and Hydrogen Fluoride during the Airborne Arctic Stratospheric Expedition." Geophys. Res. Lett 17 529-532 [Journal Article/Letter]

1990. "Reconstruction of O3 and N2O Fields from ER-2, DC-8, and Balloon Observations." Geophys. Res. Lett 17 521-524 [Journal Article/Letter]

1990. "Stratospheric Temperatures During the 88-89 Northern Hemisphere Winter." Geophys. Res. Lett 17 329-332 [Journal Article/Letter]

1990. "Stratospheric Constituent Trends from ER-2 Profile Data." Geophys. Res. Lett 17 469-472 [Journal Article/Letter]

1990. "Stratospheric Temperatures During AASE: Results From STRATAN." Geophys. Res. Lett. 17 337-340 [Journal Article/Letter]

1990. "Radiative Heating Rates during the Airborne Arctic Stratospheric Expeditio,." Geophys. Res. Lett 17 345-348 [Journal Article/Letter]

1990. "Small-Scale Waves Encountered during AASE." Geophys. Res. Lett 17 349-352 [Journal Article/Letter]

1990. "A Comparison of Arctic Lower Stratospheric Winter Temperatures for 1988-89 with Temperatures Since 1964." Geophys. Res. Lett 17 (4): 333-336 [10.1029/GL017i004p00333] [Journal Article/Letter]

1990. "Total Ozone during the 1988-1989 Northern Hemisphere Winter." Geophys. Res. Lett 17 317-320 [Journal Article/Letter]

1989. "Evidence of the Mid-Latitude Impact of Antarctic Ozone Depletion." Nature 340 290-293 [Journal Article/Letter]

1989. "Potential Vorticity Estimates in the South Polar Vortex from ER-2 Flight Data." J. Geophys. Res 94 11625-11640 [Journal Article/Letter]

1989. "Reconstruction of the Constituent Distribution and Trends in the Antarctic Polar Vortex from ER-2 Flight Observation." J. Geophys. Res 94 16815-16846 [Journal Article/Letter]

1989. "Quasi-biennial Modulation of the Antarctic Ozone Depletion." J. Geophys. Res 94 11559-11571 [Journal Article/Letter]

1988. "Effect of Computed Horizontal Diffusion Coefficients on Two-dimensional N2O Model Distributions." J. Geophys. Res. 93 (D5): 5213-5219 [10.1029/JD093iD05p05213] [Journal Article/Letter]

1988. "Antarctic Springtime Ozone Depletion Computed from Temperature Observations." J. Geophys. Res 93 (D4): 3833-3849 [10.1029/JD093iD04p03833] [Journal Article/Letter]

1988. "Mixing Rates Calculated from Potential Vorticity." J. Geophys. Res 93 5221-5240 [Journal Article/Letter]

1988. "Coherent ozone-dynamical changes during the southern hemisphere spring, 1979–1986." J. Geophys. Res. 93 (D10): 12585-12606 [10.1029/JD093iD10p12585] [Journal Article/Letter]

1988. "The Morphology and Meteorology of Southern Hemisphere Spring Total Ozone Mini-Holes." Geophys. Res. Lett 15 923-926 [Journal Article/Letter]

1986. "October Antarctic Temperature and Total Ozone Trends from 1979-1985." Geophys. Res. Lett 13 1206-1209 [Journal Article/Letter]

1986. "The Morphology of Antarctic Total Ozone as Seen by TOMS." Geophys. Res. Lett 13 1217-1220 [Journal Article/Letter]

1986. "The Final Warming and Polar Vortex Disappearance During the Southern Hemisphere Spring." Geophys. Res. Lett 13 1228-1231 [Journal Article/Letter]

1986. "Horizontal Mixing Coefficients Calculated from NMC Data." J. Geophys. Res 91 7919-7924 [Journal Article/Letter]

1986. "Nimbus 7 Satellite Measurements of the Springtime Antarctic Ozone Decrease." Nature 322 808-811 [Journal Article/Letter]

1985. "Short Meridional Scale Anomalies in the Lower Stratosphere and Upper Troposphere." J. Atmos. Sci 42 2081-2092 [Journal Article/Letter]

1983. "Observational Characteristics of Atmospheric Anomalies with Short Meridional and Long Zonal Scales." J. Atmos. Sci 40 2547-2554 [Journal Article/Letter]

Non-Refereed

2015. "MIDDLE ATMOSPHERE | Polar Vortex." Encyclopedia of Atmospheric Sciences 12-17 [10.1016/b978-0-12-382225-3.00228-0] [Article in Book]

2013. "Re-Evaluation of the Lifetimes of Ozone-Depleting Substances and Related Trace Gases." WCRP – 15/2013 SPARC Report No. 6 [Report]

2011. "Scientific Assessment of Ozone Depletion: 2010." WMO/UNEP Rep. 52 [Report]

2011. "Chemistry and Dynamics of the Antarctic Ozone Hole." The Stratosphere: Dynamics, Transport, and Chemistry 190 [10.1002/9781118666630.ch9] [Article in Book]

2010. "Mechanisms and feedback causing changes in upper stratospheric ozone in the 21st century." J. Geophys. Res. 115 (D5): D05303 [10.1029/2009JD012397] [Journal Article/Letter]

2009. "Estimating When the Antarctic Ozone Hole will Recover." Twenty Years of Ozone Decline: Proceedings of the Symposium for the 20th Anniversary of the Montreal Protocol IV 191-200 [10.1007/978-90-481-2469-5_14] [Proceedings]

2008. "Ozone and UV Observations." Trends in Emissions of Ozone-Depleting Substances, Ozone Layer Recovery, and Implications for Ultraviolet Radiation Exposure.. A Report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research 79-110 [Report]

2008. "Implications for the United States: in Trends in Emissions of Ozone-Depleting Substances, Ozone Layer Recovery, and Implications for Ultraviolet Radiation Exposure." A Report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research [Journal Article/Letter]

2008. "The Future and Recovery in Trends in Emissions of Ozone-Depleting Substances, Ozone Layer Recovery, and Implications for Ultraviolet Radiation Exposure." A Report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research 133–15 [Report]

2008. "Executive Summary in Trends in Emissions of Ozone-Depleting Substances, Ozone Layer Recovery, and Implications for Ultraviolet Radiation Exposure." A Report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research 15-22 [Report]

2007. "Polar Stratospheric Ozone: Past and Present." Scientific Assessment of Ozone Depletion: 2006, WMO/UNEP Rep. 50 Chapter 4 [Article in Book]

2007. "Chapter 14: Comparison of Measurements – Calibration and Validation." Observing Systems for Atmospheric Composition: Satellite, Aircraft, Sensor Web and Ground-Based Observational Methods and Strategies 182-199 [10.1007/978-0-387-35848-2_14] [Article in Book]

2007. "Chapter 8: Uninhabited Aerial Vehicles: Current and Future Use." Observing Systems for Atmospheric Composition: Satellite, Aircraft, Sensor Web and Ground-Based Observational Methods and Strategies 106-118 [10.1007/978-0-387-35848-2_8] [Article in Book]

2003. "Polar Stratospheric Ozone: Past and Future." Scientific Assessment of Ozone Depletion: 2002, WMO/UNEP Rep. 47 Chapter 3 [Article in Book]

1996. "The Stratosphere in the Southern Hemisphere." AMS monograph The Meteorology of the Southern Hemisphere Chapter 6 [Article in Book]

1993. "The df: A proposed data format standard." NASA-TM-4467 [Other]

1989. "Meteorological atlas of the Northern Hemisphere lower stratosphere for January and February 1989 during the Airborne Arctic Stratospheric Expedition." NASA-TM-4145 [Other]

1989. "Comparison of the Southern Hemisphere Spring’s of 1988 and 1987." Dynamics, Transport and Photochemistry in the Middle Atmosphere 321 71-89 [10.1007/978-94-009-0693-8_5] [Article in Book]

1988. "Meteorological Atlas of the Southern Hemisphere Lower Stratosphere for August and September 1987." NASA Technical Memorandum 4049 [Other]

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