Publications
Please report broken links to Kristian Hajny.
2024
Brockway, N., P. Peterson, K. Bigge, K. Hajny, P. Shepson, K. Pratt, J. Fuentes, T. Starn, R. Kaeser, B. Stirm, et al.: Tropospheric bromine monoxide vertical profiles retrieved across the Alaskan Arctic in springtime. Atmos. Chem. Phys, 24, 23–40. doi: https://doi.org/10.5194/acp-24-23-2024, 2024. Link to article
Hope, A. P., I. Lopez-Coto, K. Hajny, J. M. Tomlin, R. Kaeser, B. Stirm, A. Karion, and P. B. Shepson: Analyzing "grey zone" turbulent kinetic energy predictions in the boundary layer from three WRF PBL schemes over New York City and comparison to aircraft measurements. J. Appl. Meteorol. Climatol., in press. doi: https://doi.org/10.1175/JAMC-D-22-0181.1, 2024. Link to article
2023
Bottorff, B., M. M. Lew, Y. Woo, P. Rickly, M. D. Rollings, B. Demming, D. C. Anderson, E. Wood, H. D. Alwe, D. B. Millet, et al.: OH, HO2, and RO2 radical chemistry in a rural forest environment: Measurements, model comparisons, and evidence of a missing radical sink. Atmos. Chem. Phys., 23, 10287–10311. doi: https://doi.org/10.5194/acp-23-10287-2023, 2023. Link to article
Graham, K. A., C. D. Holmes, G. Friedrich, C. D. Rauschenberg, C. R. Williams, J. W. Bottenheim, F. P. Chavez, J. W. Halfacre, D. K. Perovich, P. B. Shepson, et al.: Variability of Atmospheric CO2 over the Arctic Ocean: Insights from the O-Buoy Chemical Observing Network. J. Geophys. Res. Atmos., 128, e2022JD036437. doi: https://doi.org/10.1029/2022JD036437, 2023. Link to article
Hajny, K. D., D. R. Lyon, A. Armstrong, C. R. Floerchinger, T. Jayarathne, R. Kaeser, T. Lavoie, O. E. Salmon, B. H. Stirm, A. A. Stuff, et al.: Assessing the bias and uncertainties in the aircraft mass balance technique for the determination of carbon dioxide emission rates. Elem. Sci. Anth., 11, 00135, doi: https://doi.org/10.1525/elementa.2022.00135, 2023. Link to article
Tomlin, J. M., I. Lopez-Coto, K. D. Hajny, J. R. Pitt, R. Kaeser, B. H. Stirm, T. Jayarathne, C. R. Floerchinger, R. Commane, P. B. Shepson: Spatial attribution of aircraft mass balance experiment CO2 estimations for policy-relevant boundaries: New York City. Elem. Sci. Anth., 11, 00046. doi: https://doi.org/10.1525/elementa.2023.00046, 2023. Link to article
2022
Chen, Q., J. A. Mirrielees, S. Thanekar, N. A. Loeb, R. M. Kirpes, L. M. Upchurch, A. J. Barget, N. N. Lata, A. R. W. Raso, S. M. McNamara, et al.: Atmospheric particle abundance and sea salt aerosol observations in the springtime Arctic: a focus on blowing snow and leads. Atmos. Chem. Phys., 22, 15263–15285, doi: https://doi.org/10.5194/acp-22-15263-2022, 2022. Link to article
Jeong, D., S. M. McNamara, A. J. Barget, A. R. W. Raso, L. M. Upchurch, S. Thanekar, P. K. Quinn, W. R. Simpson, J. D. Fuentes, P. B. Shepson, et al.: Multiphase Reactive Bromine Chemistry during Late Spring in the Arctic: Measurements of Gases, Particles, and Snow. ACS Earth Space Chem., 6 (12), 2877-2887, doi: https://doi.org/10.1021/acsearthspacechem.2c00189, 2022. Link to article
Hajny, K. D., C. R. Floerchinger, I. Lopez-Coto, J. R. Pitt, C. K. Gately, K. R. Gurney, L. R. Hutyra, T. Jayarathne, R. Kaeser, G. S. Roest, et al.: A spatially explicit inventory scaling approach to estimate urban CO2 emissions. Elem. Sci. Anth., 10, 00121, doi: https://doi.org/10.1525/elementa.2021.00121, 2022. Link to article
Lopez-Coto, I., X. Ren, A. Karion, K. McKain, C. Sweeney, R. R. Dickerson, B. C. McDonald, D. Y. Ahn, R. J. Salawitch, H. He, et al.: Carbon Monoxide Emissions from the Washington, DC, and Baltimore Metropolitan Area: Recent Trend and COVID-19 Anomaly. Environ. Sci. Technol., 56, 2172-2180, doi: https://doi.org/10.1021/acs.est.1c06288, 2022. Link to article
Pitt, J. R., I. Lopez-Coto, K. D. Hajny, J. Tomlin, R. Kaeser, T. Jayarathne, B. H. Stirm, C. R. Floerchinger, C. P. Loughner, C. K. Gately, et al.: New York City greenhouse gas emissions estimated with inverse modeling of aircraft measurements, Elem. Sci. Anth., 10, 00082, doi: https://doi.org/10.1525/elementa.2021.00082, 2022. Link to article
2021
Floerchinger, C., P. B. Shepson, K. Hajny, B. C. Daube, B. H. Stirm, C. Sweeney, and S. C. Wofsy: Relative flux measurements of biogenic and natural gas-derived methane for seven U.S. cities, Elem. Sci. Anth., 9, 000119, doi: https://doi.org/10.1525/elementa.2021.000119, 2021. Link to article
Jones, T. S., J. E. Franklin, J. Chen, F. Dietrich, K. D. Hajny, J. C. Paetzold, A. Wenzel, C. Gately, E. Gottlieb, H. Parker, et al.: Assessing urban methane emissions using column-observing portable Fourier transform infrared (FTIR) spectrometers and a novel Bayesian inversion framework, Atmos. Chem. Phys., 21, 13131–13147, doi: https://doi.org/10.5194/acp-21-13131-2021, 2021. Link to article
Ma, X., J. Huang, T. Zhao, C. Liu, K. Zhao, J. Xing, and W. Xiao: Rapid increase in summer surface ozone over the North China Plain during 2013–2019: a side effect of particulate matter reduction control? Atmos. Chem. Phys., 21, 1–16, doi: https://doi.org/10.5194/acp-21-1-2021, 2021. Link to article
Morales, A. C., T. Jayarathne, J. H. Slade, A. Laskin, and P. B. Shepson: The production and hydrolysis of organic nitrates from OH radical oxidation of β-ocimene, Atmos. Chem. Phys., 21, 129-145, doi: https://doi.org/10.5194/acp-21-129-2021, 2021. Link to article
Wei, D., H. D. Alwe, D. B. Millet, B. Bottorff, M. Lew, P. S. Stevens, J. D. Shutter, J. L. Cox, F. N. Keutsch, Q. Shi, et al.: FORest Canopy Atmosphere Transfer (FORCAsT) 2.0: model updates and evaluation with observations at a mixed forest site, Geosci. Model. Dev., 14, 6309–6329, doi: https://doi.org/10.5194/gmd-14-6309-2021, 2021. Link to article
2020
Ahn, D.Y., J. R. Hansford, S. T. Howe, X. R. Ren, R. J. Salawitch, N. Zeng, M. D. Cohen, B. Stunder, O. E. Salmon, P. B. Shepson, et. al.: Fluxes of Atmospheric Greenhouse-Gases in Maryland (FLAGG-MD): Emissions of Carbon Dioxide in the Baltimore, MD-Washington, D.C. Area, J. Geophys. Res. Atmos., 125, e2019JD032004, doi: https://doi.org/10.1029/2019JD032004, 2020. Link to article
Ditto, J.C., T. Joo, J. H. Slade, P. B. Shepson, N. L. Ng, D. R. Gentner:, Nontargeted Tandem Mass Spectrometry Analysis Reveals Diversity and Variability in Aerosol Functional Groups across Multiple Sites, Seasons, and Times of Day, Environ. Sci. Technol. Lett., 7, 60–69, doi: https://doi.org/10.1021/acs.estlett.9b00702, 2020. Link to article
Lopez-Coto, I., X. Ren, O. E. Salmon, A. Karion, P. B. Shepson, R. R. Dickerson, A. Stein, K. Prasad, and J. R. Whetstone: Wintertime CO2, CH4, and CO Emissions Estimation for the Washington, DC–Baltimore Metropolitan Area Using an Inverse Modeling Technique, Environ. Sci. Technol., 54, 2606–2614 doi: https://doi.org/10.1021/acs.est.9b06619, 2020. Link to article
McNamara, S.M., N. M. Garner, S. Wang, A. R. W. Raso, S. Thanekar, A. J. Barget, J. D. Fuentes, P. B. Shepson, and K. A. Pratt: Bromine Chloride in the Coastal Arctic: Diel Patterns and Production Mechanisms, ACS Earth Space Chem., 4, 620–630, doi: https://doi.org/10.1021/acsearthspacechem.0c00021, 2020. Link to article
Swanson, W. F., K. A. Graham, J. W. Halfacre, C. D. Holmes, P. B. Shepson, and W. R. Simpson: Arctic Reactive Bromine Events Occur in Two Distinct Sets of Environmental Conditions: A Statistical Analysis of 6 Years of Observations, J. Geophys. Res. Atmos., 125, e2019JD032139, doi: https://doi.org/10.1029/2019JD032139, 2020. Link to article
Tomlin, J.M., K. A. Jankowski, F. A. Rivera-Adorno, M. Fraund, S. China, B. H. Stirm, R. Kaeser, G. S. Eakins, R. C. Moffet, P. B. Shepson, et al.: Chemical Imaging of Fine Mode Atmospheric Particles Collected from a Research Aircraft over Agricultural Fields, ACS Earth Space Chem., 4, 2171–2184, doi: https://doi.org/10.1021/acsearthspacechem.0c00172, 2020. Link to article
2019
Hajny, K. D., O. E. Salmon, P. B. Shepson, J. Rudek, D. Lyon, A. A. Stuff, B. H. Stirm, R. Kaeser, C. R. Floerchinger, S. Conley, et al.: Observations of Methane Emissions from Natural Gas-Fired Power Plants, Environ. Sci. Technol., 53, 15, 8976–8984, doi: https://doi.org/10.1021/acs.est.9b01875, 2019. Link to article
Olson, N. E., N. W. May, R. M. Kirpes, J. H. Slade, A. E. Watson, K. D. Hajny, P. B. Shepson, K. A. Pratt, and A. P. Ault: Lake Spray Aerosol Incorporated in Great Lakes Clouds, ACS Earth and Space Chem., 3, 2765-2774, doi: https://doi.org/10.1021/acsearthspacechem.9b00258, 2019. Link to article
McNamara, S. M., A. R. W. Raso, S. Wang, S. Thanekar, E. Boone, K. R. Kolesar, P. K. Peterson, W. R. Simpson, J. D. Fuentes, P. B. Shepson, et al.: Springtime Nitrogen Oxide-Influenced Chlorine Chemistry in the Coastal Arctic, Environ. Sci. Technol., 53, 14, 8057–8067, doi: https://doi.org/10.1021/acs.est.9b01797, 2019. Link to article
Halfacre, J. W., P. B. Shepson, K. A. Pratt: pH-dependent production of molecular chlorine, bromine, and iodine from frozen saline surfaces, Atmos. Chem. Phys., 19, 4917-4931, doi: https://doi.org/10.5194/acp-19-4917-2019, 2019. Link to article
Ren, X., D. L. Hall, T. Vinciguerra, S. E. Benish, P. R. Stratton, D. Ahn, J. R. Hansford, M. D. Cohen, S. Sahu, H. He, et al.: Methane Emissions from the Marcellus Shale in Southwestern Pennsylvania and Northern West Virginia Based on Airborne Measurements, J. Geophys. Res. Atmos., 124, 1862– 1878, doi: https://doi.org/10.1029/2018JD029690, 2019. Link to article
Salmon, O. E., L. R. Welp, M. Baldwin, K. Hajny, B. H. Stirm, and P. B. Shepson: Vertical profile observations of water vapor deuterium excess in the lower troposphere, Atmos. Chem. Phys. Discuss., 19, 1-35, doi: https://doi.org/10.5194/acp-19-11525-2019, 2019. Link to article
Thomas, J. L., J. Stutz, M. M. Frey, T. Bartels-Rausch, K. Altieri, F. Baladima, J. Browse, M. Dall’Osto, L. Marelle, J. Mouginot, et al.: Fostering multidisciplinary research on interactions between chemistry, biology, and physics within the coupled cryosphere-atmosphere system, Elem. Sci. Anth., 7, 58, doi: https://doi.org/10.1525/elementa.396, 2019. Link to article
Toma, S., S. Bertman, C. Groff, F. Xiong, P. B. Shepson, P. Romer, K. Duffey, P. Wooldridge, R. Cohen, K. Baumann, et al.: Importance of Biogenic Volatile Organic Compounds to Acyl Peroxy Nitrates (APN) Production in the Southeastern U.S. during SOAS 2013, Atmos. Chem. Phys., 19, 1867-1880, doi: https://doi.org/10.5194/acp-19-1867-2019, 2019. Link to article
2018
Turnbull, J. C., A. Karion, K. J. Davis, T. Lauvaux, N. L. Miles, S. J. Richardson, C. Sweeney, K. McKain, S. J. Lehman, K. R. Gurney, et al.: Synthesis of Urban CO2 Emission Estimates from Multiple Methods from the Indianapolis Flux Project (INFLUX), Environ. Sci. Technol., 53, 287-295, doi: https://doi.org/10.1021/acs.est.8b05552, 2018. Link to article
Salmon, O. E., P. B. Shepson, X. Ren, H. He, D. L. Hall, R. R. Dickerson, B. H. Stirm, S. S. Brown, D. L. Fibiger, E. E. McDuffie, et al.: Top‐down estimates of NOx and CO emissions from Washington, D.C.‐Baltimore during the WINTER campaign, J. Geophys. Res. Atmos., 123, 7705–7724, doi: https://doi.org/10.1029/2018JD028539, 2018. Link to article
Peterson, P. K., D. Pöhler, J. Zielcke, S. General, U. Frieß, U. Platt, W. R. Simpson, S. V. Nghiem, P. B. Shepson, B. H. Stirm, and K. A. Pratt: Springtime Bromine Activiation over Coastal and Inland Arctic Snow, ACS Earth Space Chem., 2, 1075-1086, doi: https://doi.org/10.1021/acsearthspacechem.8b00083, 2018. Link to article
Ren, X., O. E. Salmon, J. R. Hansford, D. Ahn, D. Hall, S. E. Benish, P. R. Stratton, H. He, S. Sahu, C. Grimes, et al.: Methane emissions from the Baltimore‐Washington area based on airborne observations: Comparison to emissions inventories, J. Geophys. Res. Atmos., 123, 8869–8882, doi: https://doi.org/10.1029/2018JD028851, 2018. Link to article
R. A. Alvarez, D. Zavala-Araiza, D. R. Lyon, D. T. Allen, Z. R. Barkley, A. R. Brandt, K. J. Davis, S. C. Herndon, D. J. Jacob, A. Karion, et al.: Assessment of Methane Emissions from the U.S. Oil and Gas Supply Chain, Science, 361, 186-188, doi: https://doi.org/10.1126/science.aar7204, 2018. Link to article
Carlton, A. G., J. de Gouw, J. L. Jimenez, J. L. Ambrose, A. R. Attwood, S. Brown, K. R. Baker, C. Brock, R. C. Cohen, S. Edgerton, et al.: Synthesis of the Southeast Atmosphere Studies: Investigating Fundamental Atmospheric Chemistry Questions, Bull. Amer. Meteor. Soc., 99, 547–567, doi: https://doi.org/10.1175/BAMS-D-16-0048.1, 2018. Link to article
Bonin, T. A., B. J. Carroll, R. M. Hardesty, W. A. Brewer, K. Hajny, O. E. Salmon, and P. B. Shepson: Doppler Lidar Observations of the Mixing Height in Indianapolis Using an Automated Composite Fuzzy Logic Approach, J. Atmos. Oceanic Technol., 35, 473–490, doi: https://doi.org/10.1175/JTECH-D-17-0159.1, 2018. Link to article
2017
Salmon, O. E., P. B. Shepson, X. Ren, M. Collow, B. Allison, M. A. Miller, A. G. Carlton, M. O. Cambaliza, A. Heimburger, K. L. Morgan, et al.: Urban emissions of water vapor in winter, J. Geophys. Res.: Atmos., 122, 9467-9484, doi: https://doi.org/10.1002/2016JD026074, 2017. Link to article
Raso, A. R., K. D. Custard, N. W. May, D. Tanner, M. K. Newburn, L. Walker, R. J. Moore, L. G. Huey, L. Alexander, and P. B. Shepson: Active molecular iodine photochemistry in the Arctic, Proc. Natl. Acad. Sci., 114, 10053–100584, doi: https://doi.org/10.1073/pnas.1702803114, 2017. Link to article
Simpson, W. R., P. K. Peterson, U. Frieß, H. Sihler, J. Lampel, U. Platt, C. Moore, K. Pratt, P. Shepson, and J. Halfacre: Horizontal and vertical structure of reactive bromine events probed by bromine monoxide MAX-DOAS, Atmos. Chem. Phys., 17, 9291-9309, doi: https://doi.org/10.5194/acp-17-9291-2017, 2017. Link to article
Gurney, K. R., J. Liang, R. Patarasuk, D. O'Keeffe, J. Huang, M. Hutchins, T. Lauvaux, J. C. Turnbull, and P. B. Shepson: Reconciling the differences between a bottom-up and inverse-estimated FFCO2 emissions estimate in a large US urban area, Elem. Sci. Anth., 5, 44, doi: http://doi.org/10.1525/elementa.137, 2017. Link to article
Bondy, A. L., B. Wang, A. Laskin, R. L. Craig, M. V. Nhliziyo, S. B. Bertman, K. A. Pratt, P. B. Shepson, and A. P. Ault: Inland Sea Spray Aerosol Transport and Incomplete Chloride Depletion: Varying Degrees of Reactive Processing Observed during SOAS, Environ. Sci. Technol., 51(17), 9533-9542, doi: https://doi.org/10.1021/acs.est.7b02085, 2017. Link to article
Slade, J. H., C. d. Perre, L. Lee, and P. B. Shepson: Nitrate radical oxidation of γ-terpinene: hydroxy nitrate, total organic nitrate, and secondary organic aerosol yields, Atmos. Chem. Phys., 17(14), 8635-8650, doi: https://doi.org/10.5194/acp-17-8635-2017, 2017. Link to article
Artiglia, L., J. Edebeli, F. Orlando, S. Chen, M.-T. Lee, P. C. Arroyo, A. Gilgen, T. Bartels-Rausch, A. Kleibert, M. Vazdar, et al.: A surface-stabilized ozonide triggers bromide oxidation at the aqueous solution-vapour interface, Nature Communications, 8, 700, doi: https://doi.org/10.1038/s41467-017-00823-x, 2017. Link to article
Lavoie, T. N., P. B. Shepson, M. O. Cambaliza, B. H. Stirm, S. Conley, S. Mehrotra, I. C. Faloona, and D. Lyon: Spatiotemporal Variability of Methane Emissions at Oil and Natural Gas Operations in the Eagle Ford Basin, Environ. Sci. Technol.,51(14), 8001-8009, doi: https://doi.org/10.1021/acs.est.7b00814, 2017. Link to article
Cambaliza, M. O. L., J. E. Bogner, R. B. Green, P. B. Shepson, T. A. Harvey, K. A. Spokas, B. H. Stirm, and M. Corcoran: Field measurements and modeling to resolve m2 to km2 CH4 emissions for a complex urban source: An Indiana landfill study, Elem Sci Anth, 5, 36, doi: http://doi.org/10.1525/elementa.145, 2017. Link to article
Miles, N. L., S. J. Richardson, T. Lauvaux, K. J. Davis, N. V. Balashov, A. Deng, J. C. Turnbull, C. Sweeney, K. R. Gurney, R. Patarasuk, et al.: Quantification of urban atmospheric boundary layer greenhouse gas dry mole fraction enhancements in the dormant season: Results from the Indianapolis Flux Experiment (INFLUX), Elem Sci Anth, 5, 27, doi: http://doi.org/10.1525/elementa.127, 2017. Link to article
Heimburger, A. M., R. M. Harvey, P. B. Shepson, B. H. Stirm, C. Gore, J. Turnbull, M. O. Cambaliza, O. E. Salmon, A.-E. M. Kerlo, T. N. Lavoie, et al.: Assessing the optimized precision of the aircraft mass balance method for measurement of urban greenhouse gas emission rates through averaging, Elem Sci Anth, 5, 26, doi: http://doi.org/10.1525/elementa.134, 2017. Link to article
Davis, K. J., A. Deng, T. Lauvaux, N. L. Miles, S. J. Richardson, D. P. Sarmiento, K. R. Gurney, R. M. Hardesty, T. A. Bonin, W. A. Brewer, et al.: The Indianapolis Flux Experiment (INFLUX): A test-bed for developing urban greenhouse gas emission measurements, Elem Sci Anth, 5, 21, doi: http://doi.org/10.1525/elementa.188, 2017. Link to article
Lavoie, T. N., P. B. Shepson, C. A. Gore, B. H. Stirm, R. Kaeser, B. Wulle, D. Lyon, and J. Rudek: Correction to Assessing the Methane Emissions from Natural Gas-Fired Power Plants and Oil Refineries, Environ. Sci. Technol., 51(10), 5856-5857, doi: https://doi.org/10.1021/acs.est.6b05531, 2017. Link to article
Custard, K. D., A. R. Raso, P. B. Shepson, R. M. Staebler, and K. A. Pratt: Production and release of molecular bromine and chlorine from the Arctic coastal snowpack, ACS Earth and Space Chemistry, 1(3), 142-151, doi: https://doi.org/10.1021/acsearthspacechem.7b00014, 2017. Link to article
Peterson, P. K., H. Sihler, D. Pöhler, J. Zielcke, S. General, U. Frieß, U. Platt, W. R. Simpson, S. Nghieme, and P. B. Shepson: Observations of Bromine Monoxide Transport In the Arctic Sustained on Aerosol Particles, Atmos. Chem. Phys., 17, 7567-7579, doi: https://doi.org/10.5194/acp-17-7567-2017, 2017. Link to article
Lavoie, T. N., P. B. Shepson, C. A. Gore, B. H. Stirm, R. Kaeser, B. Wulle, D. Lyon, and J. Rudek: Assessing the Methane Emissions from Natural Gas-Fired Power Plants and Oil Refineries, Environ. Sci. Technol., 51(6), 3373-3381, doi: https://doi.org/10.1021/acs.est.6b05531, 2017. Link to article
Thompson, C. R., P. B. Shepson, J. Liao, L. G. Huey, C. Cantrell, F. Flocke, and J. Orlando: Bromine atom production and chain propagation during springtime Arctic ozone depletion events in Barrow, Alaska, Atmos. Chem. Phys., 17, 3401-3421, doi: https://doi.org/10.5194/acp-17-3401-2017, 2017. Link to article
2016
Custard, K. D., K. A. Pratt, S. Wang, and P. B. Shepson: Constraints on Arctic Atmospheric Chlorine Production through Measurements and Simulations of Cl2 and ClO, Environ. Sci. Technol., 50(22), 12394-12400, doi: https://doi.org/10.1021/acs.est.6b03909, 2016. Link to article
Xiong, F., Borca, C. H., Slipchenko, L. V., Shepson, P. B.: Photochemical degradation of isoprene-derived 4,1-nitrooxy enal, Atmos. Chem. Phys., 16, 5595-5610, doi: https://doi.org/10.5194/acp-16-5595-2016, 2016. Link to article
2015
Boone, E. J., A. Laskin, J. Laskin, C. Wirth, P. B. Shepson, B. H. Stirm, K. A. Pratt: Aqueous Processing of Atmospheric Organic Particles in Cloud Water Collected via Aircraft Sampling Environmental Science & Technology 49 (14), 8523-8530, doi: https://doi.org/10.1021/acs.est.5b01639, 2015. Link to article
Thompson, C. R., P. B. Shepson, J. Liao, L. G. Huey, E. C. Apel, C. A. Cantrell, F. Flocke, J. Orlando, A. Fried, S. R. Hall, R. S. Hornbrook, D. J. Knapp, R. L. Mauldin III, D. D. Montzka, B. C. Sive, K. Ullmann, P. Weibring, A. Weinheimer: Interactions of bromine, chlorine, and iodine photochemistry during ozone depletions in Barrow, Alaska, Atmos. Chem. Phys., 15, 9651-9679, doi: https://doi.org/10.5194/acp-15-9651-2015, 2015. Link to article
Lavoie, T. N., P. B. Shepson, M. O. L. Cambaliza, B. H. Stirm, A. Karion, C. Sweeney, T. I. Yacovitch, S. C. Herndon, X. Lan, D. Lyon.: Aircraft-Based Measurements of Point Source Methane Emissions in the Barnett Shale Basin Environmental Science & Technology 49 (13), 7904-7913, doi: https://doi.org/10.1021/acs.est.5b00410, 2015. Link to article
Cambaliza, M. O. L, P. B. Shepson, J. Bogner, D. R. Caulton, B. Stirm, C. Sweeney, S. A. Montzka, K. R. Gurney, K. Spokas, O. E. Salmon, T. N. Lavoie, A. Hendricks, K. Mays, J. Turnbull, B. R. Miller, T. Lauvaux, K. Davis, A. Karion, B. Moser, C. Miller, C. Obermeyer, J. Whetstone, K. Prasad, N. Miles, S. Richardson.: Quantification and source apportionment of the methane emission flux from the city of Indianapolis, Elementa, 3:000037, doi: https://doi.org/10.12952/journal.elementa.000037, 2015. Link to article
Gladich, I., J. S. Francisco, R. J. Buszek, M. Vazdar, M. A. Caignano, and P. B. Shepson.: Ab Initio Study of the Reaction of Ozone with Bromide Ion J. Phys. Chem. A 119, 4482-4488 doi: https://doi.org/10.1021/jp5101279, 2015. Link to article
Peterson, P. K., W. R. Simpson, K. A. Pratt, P. B. Shepson, U. Frieß, J. Zielcke, U. Platt, S. J. Walsh, and S. V. Nghiem.: Dependence of the vertical distribution of bromine monoxide in the lower troposphere on meteorological factors such as wind speed and stability Atmos. Chem. Phys. 15, 2119-2137, doi: https://doi.org/10.5194/acp-15-2119-2015, 2015. Link to article
Turnbull, J., C. Sweeney, A. Karion, T. Newberger, S. Lehman, P. Tans, K. J. Davis, T. Lauvaux, N. L. Miles, S. J. Richardson, M. O. Cambaliza, P. B. Shepson, K. Gurney, R. Patarasuk, I. Razlivanov.: Towards quantification and source sector identification 1 of fossil fuel CO2 emissions from an urban area: Results from the INFLUX experiment J. Geophys. Res. 120, 292-312, doi: https://doi.org/10.1002/2014JD022555, 2015. Link to article
Cambaliza, M. O. L, P. B. Shepson, J. Bogner, D. R. Caulton, B. Stirm, C. Sweeney, S. A. Montzka, K. R. Gurney, K. Spokas, O. E. Salmon, T. N. Lavoie, A. Hendricks, K. Mays, J. Turnbull, B. R. Miller, T. Lauvaux, K. Davis, A. Karion, B. Moser, C. Miller, C. Obermeyer, J. Whetstone, K. Prasad, N. Miles, S. Richardson.: Quantification and source apportionment of the methane emission flux from the city of Indianapolis Elem. Sci. Anth., 3: 000037, doi: https://doi.org/10.12952/journal.elementa.000037, 2015. Link to article
2014
Caulton, D. R., Shepson, P. B., Cambaliza, M., McCabe D., Baum, E., Stirm, B.: Methane Destruction Efficiency of Natural Gas Flares Associated with Shale Formation Wells Environmental Science & Technology 48 (16), 9548-9554, doi: https://doi.org/10.1021/es500511w, 2014. Link to article
Rindelaub, J. D., K. M. McAvey, P. B. Shepson.: The photochemical production of organic nitrates from α-pinene and loss via acid-dependent particle phase hydrolysis Atmos. Environ. 100, 193-201, doi: https://doi.org/10.1016/j.atmosenv.2014.11.010, 2014. Link to article
General, S., D. Pöhler, J. Zielcke, U. Frieß, P. Shepson, B. Stirm, W. Simpson, H. Sihler, K. Weber, C. Fischer, U. Platt.: The Heidelberg Airborne Imaging DOAS Instrument (HAIDI): A Novel Imaging DOAS Device for 2-D and 3-D Imaging of Trace Gases Atmos. Meas. Tech. 7, 3459-3485, doi: https://doi.org/10.5194/amt-7-3459-2014, 2014. Link to article
Liao, J., L. G. Huey, Z. Liu, D. J. Tanner, C. A. Cantrell, J. J. Orlando, F. M. Flocke, P. B. Shepson, A. J. Weinheimer, S. R. Hall, H. J. Beine, Y. Wang, E. D. Ingall, C. R. StephensG, R. S. Hornbrook, E. Apel, A. Fried, L. Mauldin, J. N. Smith, R. M. Staebler, J.A. Neuman, J.B. Nowak.: High levels of molecular chlorine in the Arctic atmosphere Nature Geoscience 94, 289-291, doi: https://doi.org/10.1038/ngeo2046, 2014. Link to article
Halfacre, J. W., Knepp, T. N., Shepson, P. B., Thompson, C. R., Pratt, K. A., Li, B., Peterson, P. K., Walsh, S. J., Simpson, W. R., Matrai, P. A., Bottenheim, J. W., Netcheva, S., Perovich, D. K., and Richter, A.: Temporal and spatial characteristics of ozone depletion events from measurements in the Arctic. Atmos. Chem. Phys. 14, 4875-4894, doi: https://doi.org/10.5194/acp-14-4875-2014, 2014. Link to article
Caulton, D. R., P. B. Shepson, R. L. Santoro, J. P. Sparks, R. W. Howarth, A. R. Ingraffea, M. O. L. Cambaliza, C. Sweeney, A. Karion, K. J. Davis, B. H. Stirm, S. A. Montzka, B. R. Miller, Toward a better understanding and quantification of methane emissions from shale gas development. PNAS. 2014. 111 (17) 6237-6242; published ahead of print April 14, 2014, doi: https://doi.org/10.1073/pnas.1316546111. Link to article
2013
Pratt, K. A., Fiddler, M. N., Shepson, P. B., Carlton, A.G., Surratt, J. D., Organosulfates in cloud water above the Ozarks' isoprene source region, Atmos. Environ., 77, (2013), 231-238, doi: https://doi.org/10.1016/j.atmosenv.2013.05.011, 2013. Link to article
Pratt, K. A., Custard, K. D., Shepson, P. B., Douglas, T. A., Pöhler, D., General, S., Zielcke, J., Simpson, W. R., Platt, U., Tanner, D. J., Huey, G. L., Carlsen, M., and Stirm, B. H., Photochemical production of molecular bromine in Arctic surface snowpacks, Nature Geosci., 6, 351–356, doi: https://doi.org/10.1038/ngeo1779, 2013. Link to article
Nghiem, S. V., P. Clemente-Colón, T. Douglas, C. Moore, D. Obrist, D. K. Perovich, K. A. Pratt, I. G. Rigor, W. Simpson, P. B. Shepson, A. Steffen, J. Woods.: Studying Bromine, Ozone, and Mercury Chemistry in the Arctic, EoS Trans., doi: https://doi.org/10.1002/2013EO330002, 2013. Link to article
2012
Griffith, S., R. Hansen, S. Dusanter, P. S. Stevens, M. Alaghmand, S. Bertman, M. Carroll, M. Erickson, M. Galloway, N. Grossberg, J. Hottle, J. Hou, T. Jobson, A. Kammrath, F. Keutsch, B. Lefer, L. Mielke, A. O’Brien, P. B. Shepson, M. Thurlow, W. Wallace, N. Zhang, X. Zhou, OH and HO2 Radical Chemistry during PROPHET 2008 and CABINEX 2009 – Part 1: Measurements and Model Comparison, Atmos. Chem. Phys. Discuss., 12, 33165-33218, 2012. Link to article
Helmig, D., P. Boylan, B. Johnson, S. Oltmans, C. Fairall, R. Staebler, A. Weinheimer, J. Orlando, D. J. Knapp, D. D. Montzka, F. Flocke, U. Frieß, H. Sihler, and P. B. Shepson, Ozone Dynamics and Snow-Atmosphere Exchanges During Ozone Depletion Events at Barrow, AK, J. Geophys. Res., 117, D20303, doi:10.1029/2012JD017531, 2012. Link to article
J. P. D. Abbatt, J. L. Thomas, K. Abrahamsson, C. Boxe, A. Granfors, A. E. Jones, M. King, A. Saiz-Lopez, P. B. Shepson, J. Sodeau, D. Toohey, C. Toubin, R. von Glasow, S. Wren, and X. Yang, Halogen Activation via Interactions with Environmental Ice and Snow, Atmos. Chem. Phys., 12, 6237-6271, 2012. Link to article
P. B. Shepson, P. A. Ariya, C. Deal, D. J. Donaldson, T. A. Douglas, B. Loose, T. Maksym, P. A. Matrai, Changing polar environments: Interdisciplinary challenges, EoS Transactions, American Geophysical Union Feature Article, 93, No. 11, Page 117, 2012. Link to article
A. M. Bryan, R. Forkel, S. B. Bertman, M. A. Carroll, S. Dusanter, G. D. Edwards, S. Griffith, A. B. Guenther, R. F. Hansen, D. Helmig, T. Jobson, F. N. Keutsch, B. L. Lefer, S. N. Pressley, P. B. Shepson, P. S. Stevens, and A. L. Steiner, In-canopy gas-phase chemistry during the 2009 CABINEX field campaign: Sensitivity to isoprene chemistry and vertical mixing, Atmos. Chem. Phys., 12, 8829-8849, 2012. Link to article
N. Zhang, X. Zhou, S. Bertman, D. Tang, M. Alaghmand, P. B. Shepson, and M. A. Carroll, Measurements of Ambient HONO and Vertical HONO Flux Above a Northern Michigan Forest Canopy, Atmos. Chem. Phys., 12, 8285-8296, 2012. Link to article
K. A. Pratt, L. H. Mielke, P. B. Shepson, A. M. Bryan, A. L. Steiner, J. Ortega, R. Daly, D. Helmig, C. S. Vogel, S. Griffith, S. Dusanter, P. S. Stevens, M. Alaghmand, Contributions of individual biogenic volatile organic compounds to organic nitrate formation above a mixed forest, Atmos. Chem. Phys.,12, 10125-10143, 2012. Link to article
J. Liao, L. G. Huey, D. J. Tanner, F. M. Flocke, J. J. Orlando, J. A. Neuman, J. B. Nowak, A. J. Weinheimer, S. R. Hall, J. N. Smith, A. Fried, R. M. Staebler, Y. Wang, J.-H. Koo, C. A. Cantrell, P. Weibring, J. Walega, D. J. Knapp, P. B. Shepson, and C. R. Stephens, Observations of inorganic bromine (HOBr, BrO, and Br2) speciation at Barrow, AK in spring 2009, J. Geophys. Res., 117, D00R16, doi:10.1029/2011JD016641, 2012. Link to article
C. R. Stephens, P. B. Shepson, A. Steffen, J. W. Bottenheim, J. Liao, L. G. Huey, E. Apel, A. Weinheimer, S. V. Nghiem, and S. R. Hall, The Relative Importance of Chlorine and Bromine Radicals in the Oxidation of Atmospheric Mercury at Barrow, AK, J. Geophys. Res, 117, D00R11, doi:10.1029/2011JD016649, 2012. Link to article
G. D. Edwards, D. K. Martins, T. K. Starn, K. A. Pratt, and P. B. Shepson, A disjunct eddy accumulation system for the measurement of BVOC fluxes: Lab characterizations and Field deployment, Atmos. Measurement Techniques, 5, 2115-2132, 2012. Link to article
T. Lauvaux, A. E. Schuh, M. Uliasz, S. Richardson, N. Miles, A. E. Andrews, C. Sweeney, L. I. Diaz, D. Martins, P. B. Shepson, and K. J. Davis, Constraining the CO2 budget of the Corn Belt: Exploring Uncertainties from the Assumptions in a Mesoscale Inverse System, Atmos. Chem. Phys., 12, 337-354, 2012. Link to article
M. M. Galloway, J. P. DiGangi, J. R. Hottle, A. J. Huisman, L. H. Mielke, M. Alaghmand, P. B. Shepson, J. Weremijewicz, H. Klavon, F. M. McNeal, M. A. Carroll, S. Griffith, R. F. Hansen, P. S. Stevens, S. B. Bertman, and F. N. Keutsch, Observations and Modeling of Formaldehyde at the PROPHET Mixed Hardwood Forest Site in 2008, Atmos. Environ., 49, (2012), 403-410. Link to article
2011
A. W. Costa, G. Michalski, B. Alexander, and P. B. Shepson, Analysis of Atmospheric Inputs of Nitrate to a Temperate Forest Ecosystem from Δ17O Isotope Ratio Measurements, Geophys. Res. Lett., 38, L15805, doi:10.1029/2011GL047539, 2011. Link to article
M. Alaghmand, P. B. Shepson, T. K. Starn, B. T. Jobson, W. Wallace, M. A. Carroll, S. B. Bertman, B. Lamb, S. Edburg, X. Zhou, E. Apel, D. Riemer, P. Stevens, and F. Keutsch, The Morning NOx Maximum in the Forest Atmosphere Boundary Layer, Atmos. Chem. Phys. Discuss., 11, 29251-29282, 2011. Link to article
I. Gladich, P. B. Shepson, I. Szleifer, M. Carignano, Halide Affinity for the Water-Air Interface in Aqueous Solutions of Mixtures of Sodium Salts, J. Phys. Chem., 115, 5895-5899, 2011. Link to article
Peter S. Kourtev, Kimberly A. Hill, Paul B. Shepson, and Allan Konopka, Atmospheric cloud water contains a diverse bacterial community, Atmos. Environ., 45, (2011), 5399-5405. Link to article
J. Liao, H. Sihler, L. G. Huey, J. A. Neuman, D. J. Tanner, U. Friess, U. Platt, F. M. Flocke, J. J. Orlando, P. B. Shepson, H. J. Beine, A. J. Weinheimer, S. J. Sjostedt, J. B. Nowak, D. J. Knapp, R. M. Staebler, W. Zheng, and R. Sander, A comparison of Arctic BrO measurements by chemical ionization mass spectrometry and long path‐differential optical absorption spectroscopy, J. Geophys. Res., 116, D00R02, doi:10.1029/2010JD014788, 2011. Link to article
X. Zhou, N. Zhang, M. TerAvest, J. Hou, D. Tang, S. Bertman, M. Alaghmand, P. B. Shepson, M. A. Carroll, S. Griffith, P. Stevens, Nitric Acid Photolysis on the Forest Canopy Surface as a Tropospheric Nitrous Acid Source, DOI: 10.1038, Nature Geosciences, 2011. Link to article
2010
L. H. Mielke, K. A. Pratt, P. B. Shepson, S. A. McLuckey, A. Wisthaler, A.
Hansel, Quantitative Determination of Biogenic Volatile Organic Compounds in the Atmosphere Using Proton-Transfer Reaction Linear Ion Trap Mass Spectrometry, Anal. Chem., 82, 7952–7957, 2010. Link to article
Slade, J. H., T. M. VanReken, G. R. Mwaniki, S. Bertman, B. Stirm, and P. B. Shepson (2010), Aerosol production from the surface of the Great Lakes, Geophys. Res. Lett., 37, L18807, doi:10.1029/2010GL043852. Link to article
I. Gladich, P. Shepson, I. Szleifer, and M. Carignano, Halide and sodium ion parameters for modeling aqueous solutions in TIP5P-Ew water, Chem. Phys. Lett.,doi:10.1016/j.cplett.2010.02.032, 2010. Link to article
T. N. Knepp, J. Bottenheim, M. Carlsen, D. Carlson, D. Donohoue, G. Friederich, P. A. Matrai, S. Netcheva, D. K. Perovich, R. Santini, P. B. Shepson, W. Simpson, T. Valentic, C. Williams, and P. J. Wyss, Development of an autonomous sea ice tethered buoy for the study of ocean-atmosphere-sea ice-snow pack interactions: the O-buoy, Atmos. Meas. Tech., 3, 249-261, 2010. Link to article
A. L. Lockwood, P. B. Shepson, M. Alaghmand, M. N. Fiddler, Isoprene Nitrates: Separation, Identification, Yields, and Ozone Rate Constants, Atmos. Chem. Phys., 10, 6169–6178, 2010. Link to article
2009
K. Mays, P. Shepson, B. Stirm, A. Karion, C. Sweeney, K. Gurney, Aircraft-Based Measurements of the Carbon Footprint of Indianapolis, Environ. Sci. Technol., 43, 7816–7823, 2009. Link to article
Zhang, N., X. Zhou, P. B. Shepson, H. Gao, M. Alaghmand, and B. Stirm (2009), Aircraft measurement of HONO vertical profiles over a forested region, Geophys. Res. Lett., 36, L15820, doi:10.1029/ 2009GL038999. Link to article
Martins, D. K., Sweeney, C., Stirm B. H., and Shepson P. B., Regional surface flux of CO2 inferred from changes in the advected CO2 column density, Agric. Forest Meteorol. (2009), doi:10.1016/j.agrformet.2009.05.005. Link to article
Travis N. Knepp, Tennie L. Renkins, Paul B. Shepson, Gas phase acetic acid and its qualitative effects on snow crystal morphology and the quasi-liquid layer, Atmospheric Chemistry and Physics., 9, 7679-7690, 2009. Link to article
A.E. Perring, A.Wisthaler, M. Graus, P.J. Wooldridge, A. Lockwood, L. H. Mielke, P.B. Shepson, A. Hansel, and R.C. Cohen, A product study of the Isoprene+NO3 Reaction, Atmos. Chem. Phys., 9, 4945-4956, 2009. Link to article
M. Müller, L. H. Mielke, M. Breitenlechner, S. A. McLuckey, P. B. Shepson, A. Wisthaler, and A. Hansel, MS/MS studies for the selective detection of isomeric biogenic VOCs using a Townsend Discharge Triple Quadrupole Tandem MS and a PTR-Linear Ion Trap MS, Atmos. Meas. Tech., 2, 703-712, 2009. Link to article
2008
L. H. Mielke, D. E. Erickson, S. A. McLuckey, A. Wisthaler, A. Hansel, and P. B. Shepson, Development of a Proton Transfer Reaction Linear Ion Trap Mass Spectrometer (PTRLIT) for Quantification of Atmospheric Volatile Organic Compounds, Anal. Chem., 80, 8171–8177, 2008. Link to article
Lockwood, A. L., T. R. Filley, D. Rhodes, and P. B. Shepson, Foliar uptake of atmospheric organic nitrates, Geophys. Res. Lett., 35, L15809, doi:10.1029/2008GL034714, 2008. Link to article
K. E. Garman, P. Wyss, M. Carlsen, J. R. Zimmerman, B. H. Stirm, T. Q. Carney, R. Santini, and P. B. Shepson, The contribution of variability of lift-induced upwash to the uncertainty in vertical winds determined from an aircraft platform, Boundary Layer Meteor., 126, 461-476, 2008. Link to article
A. Cavender, T. Biesenthal, J. W. Bottenheim, and P. B. Shepson, Volatile Organic Compound Ratios as Probes of Halogen Atom Chemistry in the Arctic, Atmos. Chem. Phys., 8, 1737–1750, 2008. Link to article
2007
William R. Simpson, Roland von Glasow, Katja Riedel, Phil Anderson, Parisa Ariya, Jan Bottenheim, John Burrows, Lucy Carpenter, Udo Frieß, Michael Goodsite, Dwayne Heard, Manuel Hutterli, Hans-Werner Jacobi, Lars Kaleschke, Bill Neff, John Plane, Ulrich Platt, Andreas Richter, Howard Roscoe, Rolf Sander, Paul Shepson, John Sodeau, Alexandra Steffen, Thomas Wagner, and Eric Wolff, Halogens and their role in polar boundary-layer ozone depletion, Atmos. Chem. Phys., 7, 4375–4418, 2007. Link to article
S. Morin, J. Savarino, S. Bekki, A. Cavender, P. B. Shepson, and J. W. Bottenheim, Major influence of BrO on the NOx budget in the Arctic spring, inferred from ∆17O(NO3-) measurements during Ozone Depletion Events, Environ. Chem., 4, 238-241, 2007. Link to article
A.M. Grannas, A.E. Jones, J. Dibb, M. Ammann, C. Anastasio, H.J. Beine, M. Bergin, J. Bottenheim, C.S. Boxe, G. Carver, G. Chen, J.H. Crawford, F. Dominé, M.M. Frey, M.I. Guzmán, D.E. Heard, D. Helmig, M.R. Hoffmann, R.E. Honrath, L.G. Huey, M. Hutterli, H. W. Jacobi, P. Klán, J. McConnell, J. Plane, R. Sander, J. Savarino, P.B. Shepson, W.R. Simpson, J.R. Sodeau, R. von Glasow, R. Weller, E.W. Wolff, T. Zhu, An overview of snow photochemistry: Evidence, mechanisms and impacts, Atmos. Chem. Phys., 7, 4329–4373, 2007. Link to article
M. A. Carignano, P. B. Shepson, and I. Szleifer, Ions at the ice/water/vapor interface, Chem. Phys. Lett., 436, 99–103, 2007. Link to article
Hill, K. A., P. B. Shepson, E. S. Galbavy, C. Anastasio, P. S. Kourtev, A. Konopka, and B. H. Stirm (2007), Processing of atmospheric nitrogen by clouds above a forest environment, J. Geophys. Res., 112, D11301, doi:10.1029/2006JD008002. Link to article
P. J. Tackett, A Cavender, A. D. Keil, P. B. Shepson, J. W. Bottenheim, S. Morin, J. Deary, A. Steffen, and C. Doerge, A Study of the vertical scale of halogen chemistry in the Arctic troposphere during polar sunrise at Barrow, AK, J. Geophys. Res., 112, D07306, doi:10.1029/2006JD007785, 2007. Link to article
G. D. Edwards, P. B. Shepson, J. W. Grossenbacher, J. M. Wells, G. E. Patterson, D. J. Barket, Jr., S. Pressley, T. Karl, and E. Apel, Development of an Automated Cylindrical Ion Trap Mass Spectrometer for Determination of Atmospheric Volatile Organic Compounds, Anal. Chem.,79, 5040-5050, 2007. Link to article
2006
M. A. Carignano, E. Baskaran, P. B. Shepson, and I. Szleifer, Molecular Dynamics Simulation of Ice Growth from Supercooled Pure Water and Salt Solution, Annals Glaciol., 44, 113-117, 2006. Link to article
A. Keil and P. B. Shepson, Chlorine and Bromine atom ratios in the Springtime Arctic troposphere as determined from measurement of halogenated VOCs, J. Geophys. Res., 111, D17303, doi:10.1029/2006JD007119, 2006. Link to article
K.E. Garman, K.A. Hill, P. Wyss, M. Carlsen, J.R. Zimmerman, B.H. Stirm, T.Q. Carney, R. Santini, and P.B. Shepson, An Airborne and Wind Tunnel Evaluation of a Wind Turbulence Measurement System for Aircraft-based Flux Measurements, J. Ocean and Atmos. Technol., 23, 1696-1708, 2006. Link to article
2005
M. A. Carignano, P. B. Shepson, and I. Szleifer, Molecular Dynamics Simulations of Ice Growth from Supercooled Water, Molec. Phys., 103, 2957-2967, 2005. Link to article
E. A. Holland, S. B. Bertman, M. A. Carroll, A. B. Guenther, P. B.Shepson, J. P. Sparks, J. Lee-Taylor, US Nitrogen Science Plan Focuses Collaborative Efforts, EOS Transactions, 86, 253-256, 2005. Link to article
K. A. Hill, P. B. Shepson, E. S. Galbavy, and C. Anastasio, Measurement of Wet Deposition of Inorganic and Organic Nitrogen in a Forest Environment, J. Geophys. Res. - Biogeosciences, , 110, doi:10.1029/2005JG000030, 2005. Link to article
P. Giacopelli, K. Ford, and P. B. Shepson, A Comparison of Measured and Simulated Isoprene Nitrates Above a Forest Canopy, J. Geophys. Res., 110, D01304, doi: 10.1029/2004JD005123, 2005. Link to article
C. Espada and P. B. Shepson, The Production of Organic Nitrates from Atmospheric Oxidation of Ethers and Glycol Ethers, Int. J. Chem. Kinet, 37, 686-699, 2005. Link to article
C. Espada, J. Grossenbacher, K. Ford, T. Couch, and P. B. Shepson, The Production of Organic Nitrates from Various Anthropogenic Volatile Organic Compounds, Int. J. Chem. Kinet, 37, 675-685, 2005. Link to article
2004
A. Keil and P. B. Shepson, Development of a Chemical Ionization Ion Trap Mass Spectrometric Method for Trace Level Determination of Molecular Halogens, Anal. Chem., 10.1021/ac04993m, 2004. Link to article
P. DiCarlo, W. H. Brune, M. Martinez, H. Harder, R. Lescher, X. Ren, T. Thornberry, M. A. Carroll, V. Young, P. B. Shepson, D. Riemer, and E. Apel, Missing OH Reactivity in a Forest: Evidence for Unknown Reactive Biogenic VOCs, Science, 304, 722-725, 2004. Link to article
T. M. Dassau, P. B. Shepson, K. M. Ford, and J. W. Bottenheim, Peroxyacetyl Nitrate Photochemistry and Interactions with the Arctic Surface, J. Geophys. Res., 109, D18302, doi:10.1029/2004JD004562, 2004. Link to article
A. M. Grannas, P. B. Shepson, and T. R. Filley, Photochemistry and nature of organic matter in Arctic and Antarctic snow, Global Biogeochem. Cycles, 18, 10.1029/2003GB002133, 2004. Link to article
J. W. Grossenbacher, D. J. Barket, P. B. Shepson, M. A. Carroll, K. G. Olszyna, and E. Apel, A Comparison of Isoprene Nitrate Concentrations at two Forest-Impacted Sites, J. Geophys. Res., 109, D11311, doi:10.1029/2003JD003966, 2004. Link to article
D. J. Barket, J. M. Hurst, J. W. Grossenbacher, P. B. Shepson, W. Brune, T. Thornberry, M. A. Carroll, T. Biesenthal, J. W. Bottenheim, and K. G. Olszyna, A Study of the NOx Dependence of Isoprene Oxidation, J. Geophys. Res., 109, D11310, doi:10.1029/2003JD003965, 2004. Link to article
2003
J. M. Hurst Bowman, D. J. Barket, and P. B. Shepson, The atmospheric chemistry of nonanal, Environ. Sci. Technol., 37, 2218-2225, 2003. Link to article
P. Shepson, P. Matrai, L. Barrie, and J. Bottenheim, Ocean-Atmosphere-Sea Ice-Snowpack Interactions in the Arctic, and Global Change, EOS Transactions¸84, 349, 2003. Link to article
2002
F. Dominé and P. B. Shepson, Air-snow interactions and their impact on atmospheric chemistry, Science, 297, 1506-1510, 2002. Link to article
J. W. Bottenheim, J. E. Dibb, R. E. Honrath, and P. B. Shepson, An Introduction to the ALERT2000 and Summit2000 Arctic Research Studies, Atmos. Environ.,36, 2467-2469, 2002. Link to article
T. M. Dassau, A. L. Sumner, S. L. Koeniger, P. B. Shepson, N. Cullen, K. Steffen, H.-W. Jacobi, and R. Bales, Investigation of the Role of the Snowpack on Formaldehyde Chemistry at Summit, Greenland, J. Geophys. Res., Vol. 107, NO. D19, 4394, doi:10.1029/2002JD002182, 2002. Link to article
S. Perrier, S. Houdier, F. Domine, A. Cabanes, L. Legagneax, A. L. Sumner, and P. B. Shepson, Formaldehyde in Arctic Snow. Incorporation into Ice Particles and Evolution in the Snowpack, Atmos. Environ., 36, 2695-2705, 2002. Link to article
M. R. Albert, A. M. Grannas, J. W. Bottenheim, and P. B. Shepson, Processes and Properties of Snow-Air Transfer in the High Arctic with Application to Interstitial Ozone at Alert, Canada, Atmos. Environ., 36, 2779-2787, 2002. Link to article
C. W. Spicer, R. A. Plastridge, K. L. Foster, B. J. Finlayson-Pitts, J. W. Bottenheim, A. M. Grannas, and P. B. Shepson, Molecular Halogens Before and During Ozone Depletion Events in the Arctic at Polar Sunrise: Concentrations and Sources, Atmos. Environ., 36, 2721-2731, 2002. Link to article
Yang, J., R. E. Honrath, M. C. Peterson, J. E. Dibb, A. L. Sumner, P. B. Shepson, M. Frey, H.-W. Jacobi, A. Swanson, and N. Blake, Impacts of snowpack emissions on deduced levels of OH and peroxy radicals at Summit, Greenland, Atmos. Environ.,36, 2523-2534, 2002. Link to article
H. Boudries, J.W. Bottenheim, C. Guimbaud, A. Grannas, P. B. Shepson, S. Houdier, S. Perrier, and F. Dominé, Distribution and Trends of Oxygenated Hydrocarbons in the High Arctic: Measurement in the Atmospheric Boundary Layer and Interstitial Snow Air During Polar Sunrise Experiment, Alert 2000, Atmos. Environ.,36, 2573-2583, 2002. Link to article
Houdier, S., S. Perrier, F. Domine, A. Grannas, C. Guimbaud, P. B. Shepson, H. Boudries, and J. W. Bottenheim, Acetaldehyde and Acetone in the Snowpack near Alert During the ALERT2000 Campaign. Snowpack Composition, Incorporation Processes, and Atmospheric Impact, Atmos. Environ., 36, 2609-2618, 2002. Link to article
Sumner, A. L., P. B. Shepson, A. M. Grannas, J. W. Bottenheim, K. G. Anlauf, D. Worthy, F. Domine, and S. Houdier, Atmospheric Chemistry of Formaldehyde in the Arctic Troposphere at Polar Sunrise, and the Influence of the Snowpack, Atmos. Environ., 36, 2553-2562, 2002. Link to article
A. M. Grannas, P. B. Shepson, C. Guimbaud, F. Domine, M. Albert, W. Simpson, J. W. Bottenheim, and H. Boudries, A Study of photochemical and physical processes affecting carbonyl compounds in the Arctic Marine Boundary Layer, Atmos. Environ., 36, 2733-2742, 2002. Link to article
C. Guimbaud, A. M. Grannas, P. B. Shepson, J. D. Feuntes, H. Boudries, J. W. Bottenheim, F. Dominé, S. Houdier, S. Perrier, T. B. Bisenthal, and B. G. Splawn, Snowpack processing of acetaldehyde and acetone in the Arctic atmospheric boundary layer, Atmos. Environ., 36, 2743-2752, 2002. Link to article
H. M. Cho, P. B. Shepson, L. A. Barrie, J. A. Cowin, and R. Zaveri, NMR investigation of the Quasi-Brine layer in ice/brine mixtures, J. Phys. Chem. B, 10.1021jp020449, November, 2002. Link to article
K. Ford, B. Campbell, P. B. Shepson, S. B. Bertman, R. E. Honrath, M. Peterson, and J. E. Dibb, Studies of Peroxyacetyl nitrate (PAN) and its interaction with the Snowpack at Summit, Greenland, J. Geophys. Res., 107, 10.1029/2001JD000547, 2002. Link to article
S. Sillman, M. A. Carroll, T. Thornberry, B. K. Lamb, H. Westberg, W. K. Brune, I. Faloona, D. Tan, J. M. Hurst, P. B. Shepson, A. L. Sumner, D. R. Hastie, C. M. Mihele, E. C. Apel, and D. D. Riemer, Loss of Isoprene and Sources of Nighttime OH Radicals at a Rural Site in the U.S.: Results from Photochemical Models, J. Geophys. Res., 107, (D5), 10.1029/2001JD000449, 2002. Link to article
2001
M. A. Carroll, P. B. Shepson, and S. B. Bertman, Overview of the Program for Research on Oxidants: PHotochemistry, Emissions, and Transport (PROPHET) Summer 1998 Measurements Intensive, J. Geophys. Res., 106, 24275-24288, 2001. Link to article
X. Zhou, H. J. Beine, R. E. Honrath, J. D. Fuentes, W. Simpson, P. B. Shepson, and J. Bottenheim, Snowpack Photochemical Production of HONO: a Major Source of OH in the Arctic Boundary Layer in Spring Time, Geophys. Res. Lett., 28, 4087-4090, 2001. Link to article
T. Thornberry, M. A. Carroll, G. J. Keeler, S. Sillman, S. B. Bertman, M. R. Pippin, K. Ostling, J. W. Grossenbacher, P. B. Shepson, O. R. Cooper, J. L. Moody, and W. R. Stockwell, Observations of reactive oxidized nitrogen and speciation of NOy during the PROPHET summer 1998 intensive, J. Geophys. Res., 106, 24359-24368, 2001. Link to article
K. Foster, R. Plastridge, J. Bottenheim, P. Shepson, B. Finlayson-Pitts and C. W. Spicer, The Role of Br2 and BrCl in Surface Ozone Destruction at Polar Sunrise, Science, 291, 471-474, 2001. Link to article
H. Westberg, B. Lamb, R. Hafer, A. Hills, P. B. Shepson, and C. Vogel, Measurement of Isoprene Fluxes at the PROPHET site, J. Geophys. Res., 106, 24347-24358, 2001. Link to article
A. L. Sumner, T. L. Couch, P. B. Shepson, T. Thornberry, M. A. Carroll, S. Sillman, S. B. Bertman, I. Faloona, D. Tan, W. Brune, O. Cooper, J. Moody, W. Stockwell, and V. Young, A Study of the Formaldehyde Budget above a Forest Canopy, J. Geophys. Res., 106, 24387-24405, 2001. Link to article
D. Tan, I. Faloona, W. Brune, P. B. Shepson, T. L. Couch, A. L. Sumner, T. Thornberry, M. A. Carroll, E. Apel, D. Riemer, W. Stockwell, HOx Budgets in a Deciduous Forest: Results from the PROPHET Summer 1998 Campaign, J. Geophys. Res., 106, 24407-24427, 2001. Link to article
I. Faloona, D. Tan, W. Brune, J. Hurst, D. Barket, T. Couch, P. Shepson, E. Apel, D. Riemer, T. Thornberry, M. A. Carroll, S. Sillman, and S. Bertman, Nighttime Observations of Anomalously high levels of Hydroxyl Radical above a Deciduous Forest, J. Geophys. Res., 106, 24315-24333, 2001. Link to article
D. J. Barket, J. M. Hurst, T. L. Couch, P. B. Shepson, R. Haefer, B. Lamb, H. Westberg, D. Riemer, E. Apel, C. Farmer, E. Stabenau, and Rod Zika, Intercomparison of Automated Methodologies for Measurement of Ambient Isoprene During the PROPHET 1998 Summer Campaign, J. Geophys. Res., 106, 24301-24313, 2001. Link to article
J. W. Grossenbacher, P. B. Shepson, T. Thornberry, M. Witmer-Rich, M. A. Carroll, I. Faloona, D. Tan, W. Brune, E. Apel, D. Riemer, and H. A. Westberg, Measurements of Isoprene Nitrates Above a Forest Canopy, J. Geophys. Res., 106, 24429-24438, 2001. Link to article
J. M. Hurst, D. J. Barket, O. Herrera-Gomez, T. L. Couch, P. B. Shepson, I. Faloona, D. Tan, W. Brune, H. Westberg, B. Lamb, T. Biesenthal, V. Young, A. H. Goldstein, J. W. Munger, and M. A. Carroll, Investigation of the Nighttime Decay of Isoprene, J. Geophys. Res.,106, 24335-24346, 2001. Link to article
2000
T. L. Couch, A. L. Sumner, T. M. Dassau, P. B. Shepson, and R. E. Honrath, An Investigation of the Interaction of Carbonyl Compounds with the Snowpack, Geophys. Res. Lett., 27, 2241-2244, 2000. Link to article
B. Michalowski, J. S. Francisco, Y. Li, S.-M. Li, and P. B. Shepson, A Computer Model Study of Multiphase Chemistry in the Arctic Boundary Layer During Polar Sunrise, J. Geophys. Res., 105, 15131-15145, 2000. Link to article
1999
R. E. Honrath, M. C. Peterson, S. Guo, J. E. Dibb, P. B. Shepson, and B.
Campbell, Evidence of NOx Production Within or Upon the ice particles in the Greenland snowpack, Geophys. Res. Lett., 26, 695-698, 1999. Link to article
A. L. Sumner and P. B. Shepson, Snowpack Production of Formaldehyde and its Effect on the Arctic Troposphere, Nature, 398, 230-233, 1999. Link to article
G. A. Impey, C. M. Mihele, P. B. Shepson, D. R. Hastie, K. G. Anlauf, and L. A. Barrie, Measurements of Photolyzable Halogen Compounds and Bromine Radicals During the Polar Sunrise Experiment 1997, J. Atmos. Chem., 34, 21-37, 1999. Link to article
D. R. Hastie, J. Narayan, C. Schiller, H. Niki, P. B. Shepson, D. Sills, P. Taylor, W. J. Moroz, J. Drummond, N. Reid, R. Taylor, P. B. Roussel, and O. T. Melo, Observational evidence for the impact of the lake breeze circulation on ozone concentrations in Southern Ontario, Atmos. Environ., 33, 323-335, 1999. Link to article
1998
J. M. O'Brien, E. Czuba, D. R. Hastie, J. S. Francisco, and P. B. Shepson, Determination of the Hydroxy Nitrate Yields from the Reaction of C2-C6 Alkenes with OH in the Presence of NO, J. Phys. Chem., 102, 8903-8908, 1998. Link to article
D. Riemer, W. Pos, P. Milne, C. Farmer, R. Zika, E. Apel, K. Olszyna, T. Kliendienst, S. Bertman, P. Shepson, and T. Starn, Observations of Nonmethane Hydrocarbons (NMHCs) and Oxygenated Volatile Organic Compounds (OVOCs) at a Rural Site in the Southeastern United States, J. Geophys. Res., 103, 28111-28128, 1998. Link to article
A. Colorado, D. J. Barket, J. M. Hurst, and P. B. Shepson, A Fast-Response Method for Determination of Atmospheric Isoprene Using Quadrupole Ion Trap Mass Spectrometry, Anal. Chem., 70, 5129-5135, 1998. Link to article
O. R. Cooper, J. L. Moody, J. C. Davenport, S. J. Oltmans, B. J. Johnson, P. B. Shepson, X. Chen, and J. T. Merrill, The Influence of Springtime Weather Systems on Vertical Ozone Distributions over Three North American Sites, J. Geophys. Res., 103, 22001-22013, 1998. Link to article
T.A. aBiesenthal, J.W. Bottenheim, P.B. Shepson, S.-M. Li, and P. C. Brickell, The chemistry of biogenic hydrocarbons at a Rural Site in Eastern Canada, J. Geophys. Res., 103, 25487-25498, 1998. Link to article
Xiaohui Chen, David Hulbert, and Paul B. Shepson, Measurement of the Organic Nitrate Yield from OH Reaction with Isoprene, J. Geophys. Res., 103, 25563-25568, 1998. Link to article
G. Nouaime, S. B. Bertman, C. Seaver, D. Elyea, H. Huang, P. B. Shepson, T. K. Starn, D. D. Riemer, R. G. Zika, and K. Olszyna, Sequential Tropospheric Products from Isoprene Chemistry: MACR and MPAN at a NOx-rich Forest Environment in the Southeast U.S., J. Geophys. Res., 103, 22463-22471, 1998. Link to article
E. Apel, J. Calvert, D. Riemer, W. Pos, R. Zika, T. Kleindienst, W. Lonneman, K. Fung, E. Fujita, P. B. Shepson, and T. K. Starn, Measurements Comparison of Oxygenated Volatile Organic Compounds at a Rural Site During the 1995 SOS Nashville Intensive, J. Geophys. Res., 103, 22295-22316, 1998. Link to article
N. Srinivasan, R. G. Cooks, and P. B. Shepson, Proton Affinity of Peroxyacetyl Nitrate Sampled by Membrane Introduction Mass Spectrometry, Rapid Comm. Mass Spectrom., 12, 328-334, 1998. Link to article
T. K. Starn, P. B. Shepson, S. B. Bertman, J. S. White, B. G. Splawn, D. Riemer, R. Zika, and K. Olszyna, Observations of isoprene chemistry and its role in ozone production at a semirural site during the 1995 Southern Oxidants Study, J. Geophys. Res., 103, 22425-22435, 1998. Link to article
T.K. Starn, P. B. Shepson, S. B. Bertman, D. D. Riemer, R. Zika, and K. Olszyna,
Nighttime isoprene chemistry at an urban-impacted forest site, J. Geophys. Res., 103, 22437-22447, 1998. Link to article
1997
T. Biesenthal, Q. Wu, P. B. Shepson, H. A. Wiebe, K. G. Anlauf, and G. I. Mackay, A Study of Relationships Between Isoprene, its Oxidation Products and Ozone, in the Lower Fraser Valley, B.C., Atmos. Environ., 31, 2049-2058, 1997. Link to article
J. M. O'Brien, P. B. Shepson, T. Biesenthal, Q. Wu, J. W. Bottenheim, H. A. Wiebe, K. G. Anlauf and P. Brickell, Production and Distribution of Organic Nitrates, and Their Relationship to Carbonyl Compounds in the Lower Fraser Valley, B.C., Atmos. Environ.,31, 2059‑2069 (1997). Link to article
1996
P. B. Shepson, E. Mackay, and K. Muthuramu, Henry’s Law Constants and Removal Processes for Several Atmospheric β-Hydroxy Alkyl Nitrates, Environ. Sci. Technol., 30, 3618-3623, 1996. Link to article