Zobrazeno 1 - 10
of 88
pro vyhledávání: '"S. C. Herndon"'
Autor:
Y. Liang, R. A. Wernis, K. Kristensen, N. M. Kreisberg, P. L. Croteau, S. C. Herndon, A. W. H. Chan, N. L. Ng, A. H. Goldstein
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 12441-12454 (2023)
Wildfires have become an increasingly important source of organic gases and particulate matter in the western USA. A large fraction of organic particulate matter emitted in wildfires is semivolatile, and the oxidation of organic gases in smoke can fo
Externí odkaz:
https://doaj.org/article/4fe41c05d527488eb62c8d86adb06da0
Publikováno v:
Atmospheric Measurement Techniques, Vol 16, Pp 1915-1921 (2023)
An Aerodyne tunable infrared laser direct absorption spectrometer with a multipass cell with a 413 m pathlength for the detection of ethylene oxide (EtO) is presented (TILDAS-FD-EtO). This monitor achieves precisions of ppt or ppb s−1 and ppt in 10
Externí odkaz:
https://doaj.org/article/fe5af7db3ac04b758b97574c60bcc09b
Autor:
J. W. Halfacre, J. Stewart, S. C. Herndon, J. R. Roscioli, C. Dyroff, T. I. Yacovitch, M. Flynn, S. J. Andrews, S. S. Brown, P. R. Veres, P. M. Edwards
Publikováno v:
Atmospheric Measurement Techniques, Vol 16, Pp 1407-1429 (2023)
The largest inorganic, gas-phase reservoir of chlorine atoms in the atmosphere is hydrogen chloride (HCl), but challenges in quantitative sampling of this compound cause difficulties for obtaining high-quality, high-frequency measurements. In this wo
Externí odkaz:
https://doaj.org/article/1b4c923ecd1c4646af2c13fae9249de9
Autor:
Y. Liang, C. Stamatis, E. C. Fortner, R. A. Wernis, P. Van Rooy, F. Majluf, T. I. Yacovitch, C. Daube, S. C. Herndon, N. M. Kreisberg, K. C. Barsanti, A. H. Goldstein
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 9877-9893 (2022)
The size and frequency of wildfires in the western United States have been increasing, and this trend is projected to continue, with increasing adverse consequences for human health. Gas- and particle-phase organic compounds are the main components o
Externí odkaz:
https://doaj.org/article/3a4ff7a5cfa341ea8cc35ba2b772208c
Autor:
A. J. Lindsay, D. C. Anderson, R. A. Wernis, Y. Liang, A. H. Goldstein, S. C. Herndon, J. R. Roscioli, C. Dyroff, E. C. Fortner, P. L. Croteau, F. Majluf, J. E. Krechmer, T. I. Yacovitch, W. B. Knighton, E. C. Wood
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 4909-4928 (2022)
Ozone (O3), a potent greenhouse gas that is detrimental to human health, is typically found in elevated concentrations within biomass burning (BB) smoke plumes. The radical species OH, HO2, and RO2 (known collectively as ROx) have central roles in th
Externí odkaz:
https://doaj.org/article/7592b9cf294343a59fdd30a5327e93e4
Autor:
D. Jeong, R. Seco, D. Gu, Y. Lee, B. A. Nault, C. J. Knote, T. Mcgee, J. T. Sullivan, J. L. Jimenez, P. Campuzano-Jost, D. R. Blake, D. Sanchez, A. B. Guenther, D. Tanner, L. G. Huey, R. Long, B. E. Anderson, S. R. Hall, K. Ullmann, H. Shin, S. C. Herndon, D. Kim, J. Ahn, S. Kim
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 12779-12795 (2019)
Nitryl chloride (ClNO2) is a radical reservoir species that releases chlorine radicals upon photolysis. An integrated analysis of the impact of ClNO2 on regional photochemistry in the Seoul metropolitan area (SMA) during the Korea–United States Air
Externí odkaz:
https://doaj.org/article/1d1a65077cb7456dac47ea300fe53a42
Publikováno v:
Atmospheric Measurement Techniques, Vol 12, Pp 2085-2095 (2019)
Tracer flux ratio methodology was applied to airborne measurements to quantify methane (CH4) emissions from two dairy farms in central California during the summer. An aircraft flew around the perimeter of each farm measuring downwind enhancements of
Externí odkaz:
https://doaj.org/article/d3d16d8d0ff94ac5b7909c05199d03db
Autor:
D. C. Anderson, J. Pavelec, C. Daube, S. C. Herndon, W. B. Knighton, B. M. Lerner, J. R. Roscioli, T. I. Yacovitch, E. C. Wood
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 2845-2860 (2019)
Observations of total peroxy radical concentrations ([XO2] ≡ [RO2] + [HO2]) made by the Ethane CHemical AMPlifier (ECHAMP) and concomitant observations of additional trace gases made on board the Aerodyne Mobile Laboratory (AML) during May
Externí odkaz:
https://doaj.org/article/a37848595008409781fd997b14c04744
Autor:
M. Zavala, L. T. Molina, P. Maiz, I. Monsivais, J. C. Chow, J. G. Watson, J. L. Munguia, B. Cardenas, E. C. Fortner, S. C. Herndon, J. R. Roscioli, C. E. Kolb, W. B. Knighton
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 6023-6037 (2018)
In many parts of the developing world and economies in transition, small-scale traditional brick kilns are a notorious source of urban air pollution. Many are both energy inefficient and burn highly polluting fuels that emit significant levels of
Externí odkaz:
https://doaj.org/article/ec49cc99848d46119b9cb19431a2b12e
Autor:
R. Ots, M. R. Heal, D. E. Young, L. R. Williams, J. D. Allan, E. Nemitz, C. Di Marco, A. Detournay, L. Xu, N. L. Ng, H. Coe, S. C. Herndon, I. A. Mackenzie, D. C. Green, J. J. P. Kuenen, S. Reis, M. Vieno
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 4497-4518 (2018)
Evidence is accumulating that emissions of primary particulate matter (PM) from residential wood and coal combustion in the UK may be underestimated and/or spatially misclassified. In this study, different assumptions for the spatial distribution
Externí odkaz:
https://doaj.org/article/145ace41dbd14b92bfa5e81337a27980