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1. Comparison of Airborne Reactive Nitrogen Measurements During WINTER

   https://doi.org/10.1029/2019JD030700  

   Sparks, Tamara L. ; Ebben, Carlena J. ; Wooldridge, Paul J. ; Lopez‐Hilfiker, Felipe D. ; Lee, Ben H. ; Thornton, Joel A. ; McDuffie, Erin E. ; Fibiger, Dorothy L. ; Brown, Steven S. ; Montzka, Denise D. ; et al ( October 2019 , Journal of Geophysical Research: Atmospheres)

   We present a comparison of instruments measuring nitrogen oxide species from an aircraft during the 2015 Wintertime INvestigation of Transport, Emissions, and Reactivity (WINTER) campaign over the northeast United States. Instrument techniques compared here include chemiluminescence (CL), thermal dissociation laser‐induced fluorescence (TD‐LIF), cavity ring‐down spectroscopy (CRDS), high‐resolution time of flight, iodide‐adduct chemical ionization mass spectrometry (I^‐CIMS), and aerosol mass spectrometry. Species investigated include NO₂, NO, total nitrogen oxides (NO_y), N₂O₅, ClNO₂, and HNO₃. Particulate‐phase nitrate is also included for comparisons of HNO₃and NO_y. Instruments generally agreed within reported uncertainties, with individual flights sometimes showing much better agreement than the data set taken as a whole, due to flight‐to‐flight slope changes. NO measured by CRDS and CL showed an average relative slope of 1.16 ± 0.01 across all flights, which is outside of combined uncertainties. The source of the error was not identified. For NO₂measured by CRDS and TD‐LIF the average was 1.02 ± 0.00; for NO_ymeasured by CRDS and CL the average was 1.01 ± 0.00; and for N₂O₅measured by CRDS and I^‐CIMS the average was 0.89 ± 0.01. NO_ybudget closure to within 20% is demonstrated. We observe nonlinearity in NO₂and NO_ycorrelations at concentrations above ~30 ppbv that may be related to the NO discrepancy noted above. For ClNO₂there were significant differences between I^‐CIMS and TD‐LIF, potentially due in part to the temperature used for thermal dissociation. Although the fraction of particulate nitrate measured by the TD‐LIF is not well characterized, it improves comparisons to include particulate measurements.

    

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2. Airborne Observations of Reactive Inorganic Chlorine and Bromine Species in the Exhaust of Coal-Fired Power Plants

   https://doi.org/10.1029/2018JD029284  

   Lee, Ben H. ; Lopez-Hilfiker, Felipe D. ; Schroder, Jason C. ; Campuzano-Jost, Pedro ; Jimenez, Jose L. ; McDuffie, Erin E. ; Fibiger, Dorothy L. ; Veres, Patrick R. ; Brown, Steven S. ; Campos, Teresa L. ; et al ( October 2018 , Journal of Geophysical Research: Atmospheres)
3. Multiphase Reactive Bromine Chemistry during Late Spring in the Arctic: Measurements of Gases, Particles, and Snow

   https://doi.org/10.1021/acsearthspacechem.2c00189  

   Jeong, Daun ; McNamara, Stephen M. ; Barget, Anna J. ; Raso, Angela R. ; Upchurch, Lucia M. ; Thanekar, Sham ; Quinn, Patricia K. ; Simpson, William R. ; Fuentes, Jose D. ; Shepson, Paul B. ; et al ( December 2022 , ACS Earth and Space Chemistry)
4. Chemical structure and mechanical properties of soda lime silica glass surfaces treated by thermal poling in inert and reactive ambient gases

   https://doi.org/10.1111/jace.15476  

   Luo, Jiawei ; Bae, Stephen ; Yuan, Mengxue ; Schneider, Erik ; Lanagan, Michael T. ; Pantano, Carlo G. ; Kim, Seong H. ( July 2018 , Journal of the American Ceramic Society)
5. Wintertime Transport of Reactive Trace Gases From East Asia Into the Deep Tropics

   https://doi.org/10.1029/2017JD028231  

   Donets, Valeria ; Atlas, E. L. ; Pan, L. L. ; Schauffler, S. M. ; Honomichl, S. ; Hornbrook, R. S. ; Apel, E. C. ; Campos, T. ; Hall, S. R. ; Ullmann, K. ; et al ( November 2018 , Journal of Geophysical Research: Atmospheres)