journal article

• Declining, seasonal-varying emissions of sulfur hexafluoride from the United States 2023
• H2 in Antarctic firn air: Atmospheric reconstructions and implications for anthropogenic emissions.  Proceedings of the National Academy of Sciences of USA. 2021
• Revision of the World Meteorological Organization Global Atmosphere Watch (WMO/GAW) CO₂ calibration scale.  Atmospheric Measurement Techniques. 3015-3032. 2021
• Atmosphere-based US emission estimates of SF6 for 2007 - 2018 2021
• Atmospheric History of H₂ Over the Past Century Reconstructed From South Pole Firn Air.  Geophysical Research Letters. 2020
• Evaluation of a field-deployable Nafion™-based air-drying system for collecting whole air samples and its application to stable isotope measurements of CO₂.  Atmospheric Measurement Techniques. 4051-4064. 2020
• Investigating large methane enhancements in the US San Juan Basin.  Elementa: Science of the Anthropocene. 2020
• Advances in reference materials and measurement techniques for greenhouse gas atmospheric observations.  Metrologia: international journal of pure and applied metrology. 2019
• Methane source attribution in a US dry gas basin using spatial patterns of ground and airborne ethane and methane measurements.  Elementa: Science of the Anthropocene. 2019
• Gravimetrically prepared carbon dioxide standards in support of atmospheric research.  Atmospheric Measurement Techniques. 517-524. 2019
• Abundances of isotopologues and calibration of CO2 greenhouse gas measurements.  Atmospheric Measurement Techniques. 2669-2685. 2017
• No significant increase in long-term CH₄ emissions on North Slope of Alaska despite significant increase in air temperature.  Geophysical Research Letters. 6604-6611. 2016
• Regional Methane Emission Estimation Based on Observed Atmospheric Concentrations (2002-2012).  Journal of the Meteorological Society of Japan. 91-113. 2016
• Seasonal climatology of CO₂ across North America from aircraft measurements in the NOAA/ESRL Global Greenhouse Gas Reference Network.  Journal of Geophysical Research: Atmospheres. 5155-5190. 2015
• Nitrous oxide emissions 1999 to 2009 from a global atmospheric inversion.  Atmospheric Chemistry and Physics. 1801-1817. 2014
• Tropospheric SF₆: Age of air from the Northern Hemisphere midlatitude surface.  Journal of Geophysical Research: Atmospheres. 11429-11441. 2013
• Observational constraints on recent increases in the atmospheric CH₄ burden.  Geophysical Research Letters. 2009
• Application of Gas Chromatography with a Pulsed Discharge Helium Ionization Detector for Measurements of Molecular Hydrogen in the Atmosphere.  Environmental Science and Technology (Washington). 2431-2436. 2009
• Airborne measurements indicate large methane emissions from the eastern Amazon basin.  Geophysical Research Letters. 2007
• Conversion of NOAA atmospheric dry air CH₄ mole fractions to a gravimetrically prepared standard scale -: art. no. D18306.  Journal of Geophysical Research: Atmospheres. 2005
• Nutrient and radium fluxes from submarine groundwater discharge to Port Royal Sound, South Carolina.  Aquatic Geochemistry. 191-208. 2003
• Relation of subtropical Atlantic temperature, high-latitude ice rafting, deep water formation, and European climate 130,000-60,000 years ago.  Quaternary Science Reviews: the international multidisciplinary research and review journal. 1917-1924. 2002