journal article

• Age of air from in situ trace gas measurements: insights from a new technique.  Atmospheric Chemistry and Physics. 12425-12445. 2024
  
• Observational and model evidence for a prominent stratospheric influence on variability in tropospheric nitrous oxide.  Atmospheric Chemistry and Physics. 10513-10529. 2024
  
• Chloromethanes in the North American Troposphere and Lower Stratosphere Over the Past Two Decades.  Geophysical Research Letters. 2024
• Global nitrous oxide budget (1980-2020).  Earth System Science Data. 2543-2604. 2024
  
• GLOBAL CLIMATE.  Bulletin of the American Meteorological Society. S11-S145. 2023
  
Global Climate.  Bulletin of the American Meteorological Society. S20-S145. 2023
A novel, cost-effective analytical method for measuring high-resolution vertical profiles of stratospheric trace gases using a gas chromatograph coupled with an electron capture detector.  Atmospheric Measurement Techniques. 2851-2863. 2023

Declining, seasonal-varying emissions of sulfur hexafluoride from the United States 2023
Making best use of atmosphere- and inventory-based approaches for quantifying and understanding emissions of greenhouse gases and ozone-depleting substances on a range of spatial scales. 2023
A novel, cost-effective analytical method for measuring high-resolution vertical profiles of stratospheric trace gases using a GC-ECD 2023
Declining, seasonal-varying emissions of sulfur hexafluoride from the United States.  Atmospheric Chemistry and Physics. 1437-1448. 2023

Declining, seasonal-varying emissions of sulfur hexafluoride from the United States point to a new mitigation opportunity 2022

Supplementary material to "Declining, seasonal-varying emissions of sulfur hexafluoride from the United States point to a new mitigation opportunity" 2022
GLOBAL CLIMATE.  Bulletin of the American Meteorological Society. S20-S142. 2022

3-D Atmospheric Modeling of the Global Budget of N₂O and Its Isotopologues for 1980-2019: The Impact of Anthropogenic Emissions.  Global Biogeochemical Cycles: an international journal of global change. 2022

Forward and Inverse Modelling of Atmospheric Nitrous Oxide Using MIROC4-Atmospheric Chemistry-Transport Model.  Journal of the Meteorological Society of Japan. 361-386. 2022

Continental-scale contributions to the global CFC-11 emission increase between 2012 and 2017.  Atmospheric Chemistry and Physics. 2891-2907. 2022

UAS Chromatograph for Atmospheric Trace Species (UCATS) - a versatile instrument for trace gas measurements on airborne platforms.  Atmospheric Measurement Techniques. 6795-6819. 2021

Continental-scale contributions to the global CFC-11 emission increase between 2012 and 2017 2021

Supplementary material to "Continental-scale contributions to the global CFC-11 emission increase between 2012 and 2017" 2021
GLOBAL CLIMATE.  Bulletin of the American Meteorological Society. S11-S141. 2021

Atmosphere-based US emission estimates of SF6 for 2007 - 2018 2021
A decline in global CFC-11 emissions during 2018-2019.  Nature. 428-+. 2021

UAS Chromatograph for Atmospheric Trace Species (UCATS) – a versatile instrument for trace gas measurements on airborne platforms.  Atmospheric Measurement Techniques. 2021
GLOBAL CLIMATE.  Bulletin of the American Meteorological Society. S17-S127. 2020
The influence of the stratospheric Quasi-Biennial Oscillation on trace gas levels at the Earth's surface.  Nature Geoscience. 22-+. 2020

State of the Climate in 2018.  Bulletin of the American Meteorological Society. S1-U24. 2019
Increase in CFC-11 emissions from eastern China based on atmospheric observations.  Nature. 546-+. 2019

STATE OF THE CLIMATE IN 2017.  Bulletin of the American Meteorological Society. S1-S310. 2018
An unexpected and persistent increase in global emissions of ozone-depleting CFC-11.  Nature. 413-+. 2018

Ground-based FTIR retrievals of SF₆ on Reunion Island.  Atmospheric Measurement Techniques. 651-662. 2018
Top-down constraints on global N₂O emissions at optimal resolution: application of a new dimension reduction technique.  Atmospheric Chemistry and Physics. 735-756. 2018

DRIVERS AND ENVIRONMENTAL RESPONSES TO THE CHANGING ANNUAL SNOW CYCLE OF NORTHERN ALASKA.  Bulletin of the American Meteorological Society. 2559-2577. 2017

Ground-based FTIR retrievals of SF₆ at Réunion Island 2017

State of the Climate in 2016.  Bulletin of the American Meteorological Society. S1-S277. 2017

CFC-11, CFC-12 and HCFC-22 ground-based remote sensing FTIR measurements at Reunion Island and comparisons with MIPAS/ENVISAT data.  Atmospheric Measurement Techniques. 5621-5636. 2016

State of the Climate in 2015.  Bulletin of the American Meteorological Society. S1-S275. 2016
State of the Climate in 2015.  Bulletin of the American Meteorological Society. Si-S275. 2016

CFC-11, CFC-12 and HCFC-22 ground-based remote sensing FTIR measurements at Reunion Island and comparisons with MIPAS/ENVISAT data 2016

Atmospheric histories and global emissions of halons H-1211 (CBrClF₂), H-1301 (CBrF₃), and H-2402 (CBrF₂CBrF₂).  Journal of Geophysical Research: Atmospheres. 3663-3686. 2016

Continued emissions of carbon tetrachloride from the United States nearly two decades after its phaseout for dispersive uses.  Proceedings of the National Academy of Sciences of USA. 2880-2885. 2016

MIPAS IMK/IAA CFC-11 (CCl₃F) and CFC-12 (CCl₂F₂) measurements: accuracy, precision and long-term stability.  Atmospheric Measurement Techniques. 3355-3389. 2016

Changes in the levels and variability of halocarbons and the compliance with the Montreal Protocol from an urban view.  Chemosphere. 438-446. 2015

STATE OF THE CLIMATE IN 2014.  Bulletin of the American Meteorological Society. S1-S267. 2015

Simulation of atmospheric N2O with GEOS-Chem and its adjoint: evaluation of observational constraints.  Geoscientific Model Development. 3179-3198. 2015

Constraining the carbon tetrachloride (CCl₄) budget using its global trend and inter-hemispheric gradient.  Geophysical Research Letters. 5307-5315. 2014

STATE OF THE CLIMATE IN 2013.  Bulletin of the American Meteorological Society. S1-S257. 2014

Stratospheric lifetime ratio of CFC-11 and CFC-12 from satellite and model climatologies 2014

Supplementary material to "Stratospheric lifetime ratio of CFC-11 and CFC-12 from satellite and model climatologies" 2014
Global and regional emissions estimates for N₂O.  Atmospheric Chemistry and Physics. 4617-4641. 2014

Nitrous oxide emissions 1999 to 2009 from a global atmospheric inversion.  Atmospheric Chemistry and Physics. 1801-1817. 2014

Stratospheric lifetime ratio of CFC-11 and CFC-12 from satellite and model climatologies.  Atmospheric Chemistry and Physics. 12479-12497. 2014

Interannual fluctuations in the seasonal cycle of nitrous oxide and chlorofluorocarbons due to the Brewer-Dobson circulation.  Journal of Geophysical Research: Atmospheres. 10694-10706. 2013
Tropospheric SF₆: Age of air from the Northern Hemisphere midlatitude surface.  Journal of Geophysical Research: Atmospheres. 11429-11441. 2013

Interannual variability in tropospheric nitrous oxide.  Geophysical Research Letters. 4426-4431. 2013

State of the Climate in 2012.  Bulletin of the American Meteorological Society. S1-S240. 2013

Global and regional emissions estimates for N₂O 2013
Nitrous oxide emissions 1999–2009 from a global atmospheric inversion 2013

Re-evaluation of the lifetimes of the major CFCs and CH₃CCl₃ using atmospheric trends.  Atmospheric Chemistry and Physics. 2691-2702. 2013

STATE OF THE CLIMATE IN 2011 Special Supplement to the Bulletin of the American Meteorological Society Vol. 93, No. 7, July 2012.  Bulletin of the American Meteorological Society. S1-S263. 2012

Atmospheric variability and emissions of halogenated trace gases near New York City.  Atmospheric Environment. 533-540. 2012
Global CFC-11 (CCl₃F) and CFC-12 (CCl₂F₂) measurements with the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS): retrieval, climatologies and trends.  Atmospheric Chemistry and Physics. 11857-11875. 2012

STATE OF THE CLIMATE IN 2010.  Bulletin of the American Meteorological Society. S1-S236. 2011

Exploring causes of interannual variability in the seasonal cycles of tropospheric nitrous oxide.  Atmospheric Chemistry and Physics. 3713-3730. 2011

Improving measurements of SF₆ for the study of atmospheric transport and emissions.  Atmospheric Measurement Techniques. 2441-2451. 2011

Atmospheric three-dimensional inverse modeling of regional industrial emissions and global oceanic uptake of carbon tetrachloride.  Atmospheric Chemistry and Physics. 10421-10434. 2010

History of atmospheric SF₆ from 1973 to 2008.  Atmospheric Chemistry and Physics. 10305-10320. 2010

Optimal estimation of the surface fluxes of methyl chloride using a 3-D global chemical transport model.  Atmospheric Chemistry and Physics. 5515-5533. 2010

State of the Climate in 2008.  Bulletin of the American Meteorological Society. S13-+. 2009

Transport mechanisms for synoptic, seasonal and interannual SF₆ variations and "age" of air in troposphere.  Atmospheric Chemistry and Physics. 1209-1225. 2009
Estimation of regional emissions of nitrous oxide from 1997 to 2005 using multinetwork measurements, a chemical transport model, and an inverse method.  Journal of Geophysical Research: Atmospheres. 2008

Three-dimensional SF₆ data and tropospheric transport simulations:: Signals, modeling accuracy, and implications for inverse modeling.  Journal of Geophysical Research: Atmospheres. 2007
The NOAA nitrous oxide standard scale for atmospheric observations.  Journal of Geophysical Research: Atmospheres. 2007

Inverse modeling of the global methyl chloride sources.  Journal of Geophysical Research: Atmospheres. 2006

State of the climate in 2005.  Bulletin of the American Meteorological Society. S6-S102. 2006

Toward regional-scale modeling using the two-way nested global model TM5:: Characterization of transport using SF₆ -: art. no. D19314.  Journal of Geophysical Research: Atmospheres. 2004

Hydrogen in the atmosphere: Observations above a forest canopy in a polluted environment.  Journal of Geophysical Research: Atmospheres. 2003

Urban/industrial pollution for the New York City - Washington, DC, corridor, 1996-1998: 1. Providing independent verification of CO and PCE emissions inventories.  Journal of Geophysical Research: Atmospheres. 2003

Urban/industrial pollution for the New York City - Washington, DC, corridor, 1996-1998: 2. A study of the efficacy of the Montreal Protocol and other regulatory measures.  Journal of Geophysical Research: Atmospheres. 2003

Chlorine budget and partitioning during the Stratospheric Aerosol and Gas Experiment (SAGE) III Ozone Loss and Validation Experiment (SOLVE).  Journal of Geophysical Research: Atmospheres. 2003

Balloonborne in situ gas chromatograph for measurements in the troposphere and stratosphere.  Journal of Geophysical Research: Atmospheres. 2003

Descent and mixing in the 1999-2000 northern polar vortex inferred from in situ tracer measurements.  Journal of Geophysical Research: Atmospheres. 2002
Mean ages of stratospheric air derived from in situ observations of CO₂, CH₄, and N₂O.  Journal of Geophysical Research: Atmospheres. 32295-32314. 2001

In situ measurements of long-lived trace gases in the lower stratosphere by gas chromatography.  Journal of Atmospheric and Oceanic Technology. 1195-1204. 2001
Comparison of in situ N₂O and CH₄ measurements in the upper troposphere and lower stratosphere during STRAT and POLARIS.  Journal of Geophysical Research: Atmospheres. 19811-19822. 2000
An examination of the inorganic chlorine budget in the lower stratosphere.  Journal of Geophysical Research: Atmospheres. 1957-1971. 2000
Effect of the tropospheric trend on the stratospheric tracer-tracer correlations: Methyl chloroform.  Journal of Geophysical Research: Atmospheres. 26643-26652. 1999
The budget and partitioning of stratospheric chlorine during the 1997 Arctic summer.  Journal of Geophysical Research: Atmospheres. 26653-26665. 1999
Transport into the Northern Hemisphere lowermost stratosphere revealed by in situ tracer measurements.  Journal of Geophysical Research: Atmospheres. 26565-26580. 1999
Closure of the total hydrogen budget of the northern extratropical lower stratosphere.  Journal of Geophysical Research: Atmospheres. 8191-8200. 1999

Dehydration and denitrification in the Arctic polar vortex during the 1995-1996 winter.  Geophysical Research Letters. 501-504. 1998
Distribution of halon-1211 in the upper troposphere and lower stratosphere and the 1994 total bromine budget.  Journal of Geophysical Research: Atmospheres. 1513-1526. 1998

Evaluation of source gas lifetimes from stratospheric observations.  Journal of Geophysical Research: Atmospheres. 25543-25564. 1997

Three-dimensional simulations of long-lived tracers using winds from MACCM2.  Journal of Geophysical Research: Atmospheres. 21493-21513. 1997

Mixing of polar vortex air into middle latitudes as revealed by tracer-tracer scatterplots.  Journal of Geophysical Research: Atmospheres. 13119-13134. 1997

A comparison of measurements from ATMOS and instruments aboard the ER-2 aircraft: Halogenated gases.  Geophysical Research Letters. 2393-2396. 1996

Quantifying transport between the tropical and mid-latitude lower stratosphere.  Science. 1763-1768. 1996

Measurements of polar vortex air in the midlatitudes.  Journal of Geophysical Research: Atmospheres. 12879-12891. 1996
Airborne gas chromatograph for in situ measurements of long-lived species in the upper troposphere and lower stratosphere.  Geophysical Research Letters. 347-350. 1996

AN EXAMINATION OF THE TOTAL HYDROGEN BUDGET OF THE LOWER STRATOSPHERE.  Geophysical Research Letters. 2563-2566. 1994

THE DISTRIBUTION OF HYDROGEN, NITROGEN, AND CHLORINE RADICALS IN THE LOWER STRATOSPHERE - IMPLICATIONS FOR CHANGES IN O(3) DUE TO EMISSION OF NO(Y) FROM SUPERSONIC AIRCRAFT.  Geophysical Research Letters. 2547-2550. 1994
THE DIURNAL-VARIATION OF HYDROGEN, NITROGEN, AND CHLORINE RADICALS - IMPLICATIONS FOR THE HETEROGENEOUS PRODUCTION OF HNO2.  Geophysical Research Letters. 2551-2554. 1994

VERTICAL TRANSPORT RATES IN THE STRATOSPHERE IN 1993 FROM OBSERVATIONS OF CO2, N2O AND CH4.  Geophysical Research Letters. 2571-2574. 1994

SPRING MEASUREMENTS OF TROPOSPHERIC BROMINE AT BARROW, ALASKA.  Geophysical Research Letters. 201-204. 1993

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