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30th Anniversary of the Montreal Protocol, Paris, France September 19, 2017 The SBUV and TOMS Satellite Instruments and the Montreal Protocol |
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Quadrennial Ozone Symposium, Edinburgh, Scotland September 5, 2016 Using Observations of HNO3 and N2O to Quantify HCl and Ozone Sensitivity to Variability of the Stratospheric Circulation |
Quadrennial Ozone Symposium Poster, Edinburgh, Scotland September 6, 2016 Impact of the Montreal lProtocol: Does Stratospheric Ozone Data Confirm Model Predictions | |||
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ETH Staehelin Symposium, Zürich, Switzerland May 4, 2016 Stratospheric Ozone: How good are our measurements, how good were our model projections, and what do we need to attribute recovery to cause? |
AMS Marvin Geller Symposium, New Orleans, LA
January 14, 2016 Impact of the Montreal Protocol: Evidence from Stratospheric Ozone Data |
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Goddard Branch Lunch Talk
May 14, 2015 Nitrous Oxide, Carbon Dioxide and the Future of the Ozone Layer |
Goddard Colloquium 50th Anniversary
April 22, 2015 Atmospheric Chemistry and Dynamics: 1965-2015 | |||
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Goddard Maniac Talk
April 22, 2015 Ozone has been very, very good to me |
AMS Annual Meeting, Phoenix
January 7, 2015 Seasonal cycle of ozone in the tropical lower stratosphere: Implications for the relative importance of upwelling and mixing |
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AGU Fall Meeting Poster
December 17, 2014 Hemispheric Differences in Tropical Lower Stratospheric Constituent Seasonal Cycles |
Aura 10th Anniversary Celebration, Goddard Space Flight Center
July 15, 2014 Aura and Stratospheric Ozone | |||
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UMBC American Chemical Society Student Chapter
November 10, 2014 Stratospheric Ozone: How We Came to Understand its Chemistry and Response to Perturbations |
SORCE Science Team Meeting, Cocoa Beach, FL
January 30, 2014 The impact of solar spectral irradiance (SSI) variations on stratospheric composition: Theory and observations | |||
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SPARC General Assembly, Queenstown, New Zealand
January 16, 2014 The Search for Ozone Recovery Using 36 Years of SBUV Satellite Data |
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Harvard University Symposium in Celebration of Jennifer Logan, Cambridge, MA
May 10, 2013 Seasonal cycle of ozone in the tropical lower stratosphere: Implications for the relative importance of upwelling and mixing |
Lamont-Doherty Observatory
March 29, 2013 Stratospheric Ozone: How We Came to Understand its Chemistry and Response to Perturbations | |||
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University of Maryland Department of Meteorology Seminar to Honor Bob Hudson
January 31, 2013 Bob Hudson and the Ozone Layer |
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Fall AGU talk
December 3, 2012 Sensitivity of Stratospheric and Tropospheric Chemistry to Perturbations of Methane, Carbon Dioxide, Nitrous Oxide, and Chlorofluorocarbons |
Public Lecture at Quadrennial Ozone Symposium, Toronto, Canada
August 30, 2012 The antarctic Ozone Hole, Arctic Ozone, and the Montreal Protocol | |||
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Goddard "Maniac" talk
August 30, 2012 Stratospheric Ozone: How We Came to Understand its Chemistry and Response to Perturbations |
JHU Ocean-Atmosphere Seminar talk
April 4, 2012 Chlorofluorocarbons, Nitrous Oxide, and Carbon Dioxide: A Tale of three chemicals and Stratospheric Ozone | |||
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Lectures on Ozone for Darryn Waugh's Class
February 22, 2012 and February 27, 2012 Chlorofluorocarbons, Stratospheric Ozone, and the Montreal Protocol: Anatomy of a Successful International Environmental Agreement Part I: Science of Ozone in the Stratosphere Part II: Development and Implementation of the Montreal Protocol |
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AGU 2011 Fall Meeting Poster
December 5, 2011 Solar Cycle Spectral Irradiance Variation and Stratospheric Ozone |
International Year of Chemistry (IYC) symposium on Stratospheric Ozone and
Climate Change, Washington DC
November 7, 2011 Satellite Detection of global Ozone Trend and Polar Ozone Depletion | |||
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Aura Science Team Meeting, Helsinki, Finland
September 12, 2011 Updated Studies of the Ozone Temperature-Correlation in the Upper Stratosphere |
ETH Seminar, Zurich, Switzerland
January 21, 2011 Ozone Recovery: Impact of Carbon Dioxide and Nitrous Oxide |