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KORUS-AQ

Steven C. Wofsy

Organization:

Harvard University

First Author Publications:

Wofsy, S. C., et al. (2018), ATom: Merged Atmospheric Chemistry, Trace Gases, and Aerosols, Ornl Daac, doi:10.3334/ORNLDAAC/1581.
Wofsy, S. C. (2018), ATom: Aircraft Flight Track and Navigational Data, Ornl Daac, doi:10.3334/ORNLDAAC/1613.
Wofsy, S. C., et al. (2011), HIAPER Pole-to-Pole Observations (HIPPO): Fine-grained, global scale measurements of climatically important atmospheric gases and aerosols, Philosophical Transactions of the Royal Society of London A, 369, 2073-2086, doi:10.1098/rsta.2010.0313.
Wofsy, S. C., et al. (1994), Vertical Transport Rates in 1993 From Observations of CO2, N2O and Ch4, Geophys. Res. Lett., 21, 2571-2574.
Wofsy, S. C., et al. (1994), Factors influencing composition over subarctic North America during summer, J. Geophys. Res., 99, 1887-1897.
Wofsy, S. C., et al. (1993), Atmospheric Chemistry in the Arctic and Subarctic: The Influence of Natural Fires, Industrial Emissions, and Stratospheric Inputs, J. Geophys. Res., 98, 16,731-16.
Wofsy, S. C., et al. (1991), Factors Regulating Atmospheric Chemistry in the Arctic and Subarctic: Natural Fires, Midlatitude Industrial Sources, and Stratospheric Inputs, J. Geophys. Res., In press.

Co-Authored Publications:

Gaubert, B., et al. (2024), Neutral Tropical African CO2 Exchange Estimated From Aircraft and Satellite Observations, Global Biogeochem. Cycles.
Gaubert, B., et al. (2024), Neutral Tropical African CO2 Exchange Estimated From Aircraft and Satellite Observations, Global Biogeochem. Cycles, 37, e2023GB007804, doi:10.1029/2023GB007804.
Gordon, A., et al. (2024), Airborne observations of upper troposphere and lower stratosphere composition change in active convection producing above-anvil cirrus plumes, Atmos. Chem. Phys., doi:10.5194/acp-24-7591-2024.
Guo, H., et al. (2023), Heterogeneity and chemical reactivity of the remote troposphere defined by aircraft measurements – corrected, Atmos. Chem. Phys., 23, 99-117, doi:10.5194/acp-23-99-2023.
Katich, J., et al. (2023), Pyrocumulonimbus affect average stratospheric aerosol composition, Science, 379, 815-820, doi:10.1126/science.add3101.
Krysztofiak, G., et al. (2023), N2O Temporal Variability from the Middle Troposphere to the Middle Stratosphere Based on Airborne and Balloon-Borne Observations during the Period 1987–2018, Atmosphere, 14, 585, doi:10.3390/atmos14030585.
Bourgeois, I., et al. (2022), Large contribution of biomass burning emissions to ozone throughout the global remote troposphere, Proc. Natl. Acad. Sci., doi:10.1073/pnas.2109628118.
Hu, L., et al. (2022), Continental-scale contributions to the global CFC-11 emission increase between 2012 and 2017, Atmos. Chem. Phys., doi:10.5194/acp-22-2891-2022.
zhang, X., et al. (2022), Probing isoprene photochemistry at atmospherically relevant nitric oxide levels, Chem, 8, 2022, doi:10.1016/j.chempr.2022.08.003.
Bates, K. H., et al. (2021), The Global Budget of Atmospheric Methanol: New Constraints on Secondary, Oceanic, and Terrestrial Sources, J. Geophys. Res., 126, doi:10.1029/2020JD033439.
Brock, C., et al. (2021), Ambient aerosol properties in the remote atmosphere from global-scale in situ measurements, Atmos. Chem. Phys., 21, 15023-15063, doi:10.5194/acp-21-15023-2021.
Gonzalez, Y., et al. (2021), Impact of stratospheric air and surface emissions on tropospheric nitrous oxide during ATom, Atmos. Chem. Phys., 21, 11113-11132, doi:10.5194/acp-21-11113-2021.
Guo, H., et al. (2021), Heterogeneity and chemical reactivity of the remote troposphere defined by aircraft measurements, Atmos. Chem. Phys., 21, 13729-13746, doi:10.5194/acp-21-13729-2021.
Hintsa, E., et al. (2021), UAS Chromatograph for Atmospheric Trace Species (UCATS) – a versatile instrument for trace gas measurements on airborne platforms, Atmos. Meas. Tech., 14, 6795-6819, doi:10.5194/amt-14-6795-2021.
Kulawik, S., et al. (2021), Evaluation of single-footprint AIRS CH4 profile retrieval uncertainties using aircraft profile measurements, Atmos. Meas. Tech., 14, 335-354, doi:10.5194/amt-14-335-2021.
Liu, J., et al. (2021), Carbon Monitoring System Flux Net Biosphere Exchange 2020 (CMS-Flux NBE 2020), Earth Syst. Sci. Data, 13, 299-330, doi:10.5194/essd-13-299-2021.
Long, M. C., et al. (2021), Strong Southern Ocean carbon uptake evident in airborne observations, Science, 374, 1275-1280.
Thompson, C., et al. (2021), The NASA Atmospheric Tomography (ATom) Mission: Imaging the Chemistry of the Global Atmosphere, Bull. Am. Meteorol. Soc., doi:10.1175/BAMS-D-20-0315.1.
Birner, B., et al. (2020), Gravitational separation of Ar/N2 and age of air in the lowermost stratosphere in airborne observations and a chemical transport model, Atmos. Chem. Phys., doi:10.5194/acp-2020-95.
Bourgeois, I., et al. (2020), Global-scale distribution of ozone in the remote troposphere from ATom and HIPPO airborne field missions., Atmos. Chem. Phys., doi:10.5194/acp-2020-315.
Brewer, J., et al. (2020), Evidence for an Oceanic Source of Methyl Ethyl Ketone to the Atmosphere, J. Geophys. Res., 60273, Article, doi:10.1029/2019GL086045.
Commane, R., et al. (2020), ATom: Measurements from the Quantum Cascade Laser System (QCLS), Ornl Daac, doi:10.3334/ORNLDAAC/1747.
Martínez-Alonso, S., et al. (2020), 1.5 years of TROPOMI CO measurements: comparisons to MOPITT and ATom, Atmos. Meas. Tech., 13, 4841-4864, doi:10.5194/amt-13-4841-2020.
Wang, S., et al. (2020), Global Atmospheric Budget of Acetone: Air‐Sea Exchange and the Contribution to Hydroxyl Radicals, J. Geophys. Res., 125, e2020JD032553, doi:10.1029/2020JD032553.
Gaubert, B., et al. (2019), Global atmospheric CO2 inverse models converging on neutral tropical land exchange, but disagreeing on fossil fuel and atmospheric growth rate, Biogeosciences, 16, 117-134, doi:10.5194/bg-16-117-2019.
Wang, S., et al. (2019), Atmospheric Acetaldehyde: Importance of Air‐Sea Exchange and a Missing Source in the Remote Troposphere, Geophys. Res. Lett., 46, doi:10.1029/2019GL082034.
Strode, S., et al. (2018), ATom: Observed and GEOS-5 Simulated CO Concentrations with Tagged Tracers for ATom-1, Ornl Daac, doi:10.3334/ORNLDAAC/1604.
Strode, S., et al. (2018), Forecasting carbon monoxide on a global scale for the ATom-1 aircraft mission: insights from airborne and satellite observations and modeling, Atmos. Chem. Phys., 18, 10955-10971, doi:10.5194/acp-18-10955-2018.
Sun, K., et al. (2018), Reevaluating the Use of O2 a1 Δg Band in Spaceborne Remote Sensing of Greenhouse Gases, Geophys. Res. Lett., 45, 5779-5787, doi:10.1029/2018GL077823.
Jensen, E., et al. (2017), The NASA Airborne Tropical TRopopause EXperiment (ATTREX): High-altitude aircraft measurements in the tropical western Pacific, Bull. Am. Meteorol. Soc., 12/2015, 129-144, doi:10.1175/BAMS-D-14-00263.1.
Luus, K. A., et al. (2017), Tundra photosynthesis captured by satellite-observed solar-induced chlorophyll fluorescence, Geophys. Res. Lett., 44, 1564-1573, doi:10.1002/2016GL070842.
Prather, M., et al. (2017), Global atmospheric chemistry – which air matters, Atmos. Chem. Phys., 17, 9081-9102, doi:10.5194/acp-17-9081-2017.
Chen, J., et al. (2016), Differential column measurements using compact solar-tracking spectrometers, Atmos. Chem. Phys., 16, 8479-8498, doi:10.5194/acp-16-8479-2016.
Miller, S. M., et al. (2016), A multi-year estimate of methane fluxes in Alaska form CARVE atmospheric observations, Global Biogeochem. Cycles, 30, 1441-1453, doi:10.1002/2016GB005419.
Alvarado, M. J., et al. (2015), Impacts of updated spectroscopy on thermal infrared retrievals of methane evaluated with HIPPO data, Atmos. Meas. Tech., 8, 965-985, doi:10.5194/amt-8-965-2015.
McKain, K., et al. (2015), Methane emissions from natural gas infrastructure and use in the urban region of Boston, Massachusetts, Proc. Natl. Acad. Sci., 112, 1941-1946, doi:10.1073/pnas.1416261112.
Deng, F., et al. (2014), Inferring regional sources and sinks of atmospheric CO2 from GOSAT XCO2 data, Atmos. Chem. Phys., 14, 3703-3727, doi:10.5194/acp-14-3703-2014.
Keppel-Aleks, G., et al. (2013), Atmospheric Carbon Dioxide Variability in the Community Earth System Model: Evaluation and Transient Dynamics during the Twentieth and Twenty-First Centuries, J. Climate, 26, 4447-4475, doi:10.1175/JCLI-D-12-00589.1.
Kuai, L., et al. (2013), Profiling tropospheric CO2 using Aura TES and TCCON instruments, Atmos. Meas. Tech., 6, 63-79.
Kulawik, S., et al. (2013), Comparison of improved Aura Tropospheric Emission Spectrometer CO2 with HIPPO and SGP aircraft profile measurements, Atmos. Chem. Phys., 13, 3205-3225.
Ryerson, T. B., et al. (2013), The 2010 California Research at the Nexus of Air Quality and Climate Change (CalNex) field study, J. Geophys. Res., 118, 5830-5866, doi:10.1002/jgrd.50331.
Keppel-Aleks, G., et al. (2012), The imprint of surface fluxes and transport on variations in total column carbon dioxide, Biogeosciences, 9, 875-891, doi:10.5194/bg-9-875-2012.
Wecht, K. J., et al. (2012), Validation of TES methane with HIPPO aircraft observations: implications for inverse modeling of methane sources, Atmos. Chem. Phys., 12, 1823-1832, doi:10.5194/acp-12-1823-2012.
Wennberg, P., et al. (2012), On the Sources of Methane to the Los Angeles Atmosphere, Environ. Sci. Technol., 46, 9282-9289, doi:10.1021/es301138y.
Chevallier, F., et al. (2011), Global CO2 fluxes inferred from surface air-sample measurements and from TCCON retrievals of the CO2 total column, Geophys. Res. Lett., 38, L24810, doi:10.1029/2011GL049899.
Park, S., et al. (2010), Vertical transport rates and concentrations of OH and Cl radicals in the Tropical Tropopause Layer from observations of CO2 and halocarbons: implications for distributions of long- and short-lived chemical species, Atmos. Chem. Phys., 10, 6669-6684, doi:10.5194/acp-10-6669-2010.
Schwarz, J., et al. (2010), Global‐scale black carbon profiles observed in the remote atmosphere and compared to models, Geophys. Res. Lett., 37, L18812, doi:10.1029/2010GL044372.
Toon, B., et al. (2010), Planning, implementation, and first results of the Tropical Composition, Cloud and Climate Coupling Experiment (TC4), J. Geophys. Res., 115, D00J04, doi:10.1029/2009JD013073.
Wunch, D., et al. (2010), Calibration of the Total Carbon Column Observing Network using aircraft profile data, Atmos. Meas. Tech., 3, 1351-1362, doi:10.5194/amt-3-1351-2010.
Miller, S., et al. (2008), Sources of carbon monoxide and formaldehyde in North America determined from high-resolution atmospheric data, Atmos. Chem. Phys., 8, 7673-7696, doi:10.5194/acp-8-7673-2008.
Marcy, T., et al. (2007), Measurements of trace gases in the tropical tropopause layer, Atmos. Environ., 41, 7253-7261, doi:10.1016/j.atmosenv.2007.05.032.
Miller, C. E., et al. (2007), Precision requirements for space-based XCO2 data, J. Geophys. Res., 112, D10314, doi:10.1029/2006JD007659.
Park, S., et al. (2007), The CO2 tracer clock for the Tropical Tropopause Layer, Atmos. Chem. Phys., 7, 3989-4000, doi:10.5194/acp-7-3989-2007.
Pittman, J. V., et al. (2007), Transport in the subtropical lowermost stratosphere during the Cirrus Regional Study of Tropical Anvils and Cirrus Layers-Florida Area Cirrus Experiment, J. Geophys. Res., 112, D08304, doi:10.1029/2006JD007851.
Weinstock, E., et al. (2007), Quantifying the impact of the North American monsoon and deep midlatitude convection on the subtropical lowermost stratosphere using in situ measurements, J. Geophys. Res., 112, D18310, doi:10.1029/2007JD008554.
Heinsch, F. A., et al. (2006), Evaluation of remote sensing based terrestrial productivity from MODIS using regional tower eddy flux network observations, IEEE Trans. Geosci. Remote Sens., 44, 1908-1925, doi:10.1109/TGRS.2005.853936.
Jiménez, R., et al. (2005), A new quantum-cascade laser based spectrometer for high-precision airborne CO2 measurements, Presentation at the 13th WMO/IAEA Meeting of Experts on Carbon Dioxide Concentration and Related Tracer Measurement Techniques Boulder, Colorado, USA; September 19-22.
Crisp, D., et al. (2004), The Orbiting Carbon Observatory (OCO) mission, Advances in Space Research, 34, 700-709, doi:10.1016/j.asr.2003.08.062.
Gao, R., et al. (2004), Evidence That Nitric Acid Increases Relative Humidity in Low-Temperature Cirrus Clouds, Science, 303, 516-520, doi:10.1126/science.1091255.
Ray, E., et al. (2004), Evidence of the effect of summertime midlatitude convection on the subtropical lower stratosphere from CRYSTAL-FACE tracer measurements, J. Geophys. Res., 109, D18304, doi:10.1029/2004JD004655.
Xueref, I., et al. (2004), Combining a receptor-oriented framework for tracer distributions with a cloud-resolving model to study transport in deep convective clouds: Application to the NASA CRYSTAL-FACE campaign, Geophys. Res. Lett., 31, L14106, doi:10.1029/2004GL019811.
Jost, H., et al. (2002), Mixing events revealed by anomalous tracer relationships in the Arctic vortex during winter 1999/2000, J. Geophys, Res., 107, 4795, doi:10.1029/2002JD002380.
Amthor, J. S., et al. (2001), Boreal forest CO2 exchange and evapotranspiration predicted by nine ecosystem process models: Inter-model comparisons and relations to field measurements, J. Geophys. Res., 106, 33,623-.
Andrews, A. E., et al. (2001), Empirical age spectra for the midlatitude lower stratosphere from in situ observations of CO2: quantitative evidence for a subtropical "barrier" to horizontal transport, J. Geophys. Res., 106, 10257-10274.
Andrews, A. E., et al. (2001), Mean ages of stratospheric air derived from in situ observations of CO2, CH4, and N2O, J. Geophys. Res., 106, 32.
Boering, K. A., et al. (1996), Stratospheric mean ages and transport rates from observations of carbon-dioxide and nitrous-oxide, Science, 274, 1340-1343.
Fahey, D., et al. (1995), In situ observations of aircraft exhaust in the lower stratosphere at midlatitudes, J. Geophys. Res., 3065-3074 (manuscript in preparation).
Boering, K. A., et al. (1994), Tracer-tracer Relationships and Lower Stratosphere Dynamics: CO2 and N2O Correlations During SPADE, Geophys. Res. Lett., 21, 2567-2570.
Jaeglé, L., et al. (1994), In Situ Measurements of the NO2/NO Ratio For Testing Atmospheric Photochemical Models, Geophys. Res. Lett., 21, 2555-2558.
Salawitch, R., et al. (1994), The Diurnal Variation of Hydrogen, Nitrogen, and Chlorine Radicals: Implications for the Heterogeneous Production of HNO2, Geophys. Res. Lett., 21, 2551-2554.
Salawitch, R., et al. (1994), The Distribution of Hydrogen, Nitrogen, and Chlorine Radicals in the Lower Stratosphere: Implications for Changes in O3 Due to Emission of NOy from Supersonic Aircraft, Geophys. Res. Lett., 21, 2547-2550.
Singh, H., et al. (1994), Summertime Distribution of PAN and Other Reactive Nitrogen Species in The Northern High Latitude Atmosphere of Eastern Canada, J. Geophys. Res., 99, 1821-1835.
Wennberg, P., et al. (1994), Removal of Stratospheric O3 by Radicals: In Situ Measurements of OH, HO2, NO, NO2, ClO, and BrO, Science, 266, 398-404.
Fahey, D., et al. (1993), In Situ Measurements Constraining the Role of Sulphate Aerosols in Mid-Latitude Ozone Depletion, Nature, 363, 509-514.
Salawitch, R., et al. (1993), Chemical Loss of Ozone in the Arctic Polar Vortex in the Winter of 1991-1992, Science, 261, 1146-1149.
Jacob, D. J., et al. (1992), Summertime Photochemistry in the Arctic Troposphere, J. Geophys. Res., 97, 16421-16432.
Singh, H., et al. (1992), Reactive nitrogen in the northern high latitude atmosphere of eastern Canada, J. Geophys. Res., In press.
Harriss, R. C., et al. (1991), The Amazon Boundary Layer Experiment (ABLE 2B): West Season 1987, J. Geophys. Res., D10, 16,721-16.
Salawitch, R., et al. (1990), Loss of Ozone in the Polar Vortex for the Winter of 1989, Geophys. Res. Lett., 17, 561-164.
Yatteau, J. H., et al. (1990), Newman, A. Torres, T. Jorgensen, W. G. Mankin, M. T. Coffey, G. C. Toon, M. Loewenstein, J. R. Podolske, S. E. Strahan, K. R. Chan, and M. H. Proffitt, Geophys. Res. Lett., 17, 533-536.

Note: Only publications that have been uploaded to the ESD Publications database are listed here.

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Steven C. Wofsy