Zobrazeno 1 - 10
of 72
pro vyhledávání: '"C. C. Womack"'
Autor:
G. I. Gkatzelis, M. M. Coggon, C. E. Stockwell, R. S. Hornbrook, H. Allen, E. C. Apel, M. M. Bela, D. R. Blake, I. Bourgeois, S. S. Brown, P. Campuzano-Jost, J. M. St. Clair, J. H. Crawford, J. D. Crounse, D. A. Day, J. P. DiGangi, G. S. Diskin, A. Fried, J. B. Gilman, H. Guo, J. W. Hair, H. S. Halliday, T. F. Hanisco, R. Hannun, A. Hills, L. G. Huey, J. L. Jimenez, J. M. Katich, A. Lamplugh, Y. R. Lee, J. Liao, J. Lindaas, S. A. McKeen, T. Mikoviny, B. A. Nault, J. A. Neuman, J. B. Nowak, D. Pagonis, J. Peischl, A. E. Perring, F. Piel, P. S. Rickly, M. A. Robinson, A. W. Rollins, T. B. Ryerson, M. K. Schueneman, R. H. Schwantes, J. P. Schwarz, K. Sekimoto, V. Selimovic, T. Shingler, D. J. Tanner, L. Tomsche, K. T. Vasquez, P. R. Veres, R. Washenfelder, P. Weibring, P. O. Wennberg, A. Wisthaler, G. M. Wolfe, C. C. Womack, L. Xu, K. Ball, R. J. Yokelson, C. Warneke
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 929-956 (2024)
Extensive airborne measurements of non-methane organic gases (NMOGs), methane, nitrogen oxides, reduced nitrogen species, and aerosol emissions from US wild and prescribed fires were conducted during the 2019 NOAA/NASA Fire Influence on Regional to G
Externí odkaz:
https://doaj.org/article/61e617bdf6914661ade67d9b6c2b36f6
Autor:
L. Azzarello, R. A. Washenfelder, M. A. Robinson, A. Franchin, C. C. Womack, C. D. Holmes, S. S. Brown, A. Middlebrook, T. Newberger, C. Sweeney, C. J. Young
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 15643-15654 (2023)
Wildfires are an important source of carbonaceous aerosol in the atmosphere. Organic aerosol that absorbs light in the ultraviolet to visible spectral range is referred to as brown carbon (BrC), and its impact on Earth's radiative budget has not been
Externí odkaz:
https://doaj.org/article/b5ec3845418245d298d4bcd8c9cfea57
A lightweight broadband cavity-enhanced spectrometer for NO2 measurement on uncrewed aerial vehicles
Autor:
C. C. Womack, S. S. Brown, S. J. Ciciora, R.-S. Gao, R. J. McLaughlin, M. A. Robinson, Y. Rudich, R. A. Washenfelder
Publikováno v:
Atmospheric Measurement Techniques, Vol 15, Pp 6643-6652 (2022)
We describe the design and performance of a lightweight broadband cavity-enhanced spectrometer for measurement of NO2 on uncrewed aerial vehicles and light aircraft. The instrument uses a light-emitting diode (LED) centered at 457 nm, high-finesse mi
Externí odkaz:
https://doaj.org/article/2c97a8d078ed45b1a54ce7748b21ab95
Autor:
I. Bourgeois, J. Peischl, J. A. Neuman, S. S. Brown, H. M. Allen, P. Campuzano-Jost, M. M. Coggon, J. P. DiGangi, G. S. Diskin, J. B. Gilman, G. I. Gkatzelis, H. Guo, H. A. Halliday, T. F. Hanisco, C. D. Holmes, L. G. Huey, J. L. Jimenez, A. D. Lamplugh, Y. R. Lee, J. Lindaas, R. H. Moore, B. A. Nault, J. B. Nowak, D. Pagonis, P. S. Rickly, M. A. Robinson, A. W. Rollins, V. Selimovic, J. M. St. Clair, D. Tanner, K. T. Vasquez, P. R. Veres, C. Warneke, P. O. Wennberg, R. A. Washenfelder, E. B. Wiggins, C. C. Womack, L. Xu, K. J. Zarzana, T. B. Ryerson
Publikováno v:
Atmospheric Measurement Techniques, Vol 15, Pp 4901-4930 (2022)
We present a comparison of fast-response instruments installed onboard the NASA DC-8 aircraft that measured nitrogen oxides (NO and NO2), nitrous acid (HONO), total reactive odd nitrogen (measured both as the total (NOy) and from the sum of individua
Externí odkaz:
https://doaj.org/article/9188f1ee9ceb43db8827fc00b37f5682
Autor:
J. Liao, G. M. Wolfe, R. A. Hannun, J. M. St. Clair, T. F. Hanisco, J. B. Gilman, A. Lamplugh, V. Selimovic, G. S. Diskin, J. B. Nowak, H. S. Halliday, J. P. DiGangi, S. R. Hall, K. Ullmann, C. D. Holmes, C. H. Fite, A. Agastra, T. B. Ryerson, J. Peischl, I. Bourgeois, C. Warneke, M. M. Coggon, G. I. Gkatzelis, K. Sekimoto, A. Fried, D. Richter, P. Weibring, E. C. Apel, R. S. Hornbrook, S. S. Brown, C. C. Womack, M. A. Robinson, R. A. Washenfelder, P. R. Veres, J. A. Neuman
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 18319-18331 (2021)
Formaldehyde (HCHO) is one of the most abundant non-methane volatile organic compounds (VOCs) emitted by fires. HCHO also undergoes chemical production and loss as a fire plume ages, and it can be an important oxidant precursor. In this study, we dis
Externí odkaz:
https://doaj.org/article/f0100f93a68040c580d00c68c21934e1
Autor:
C. C. Womack, K. M. Manfred, N. L. Wagner, G. Adler, A. Franchin, K. D. Lamb, A. M. Middlebrook, J. P. Schwarz, C. A. Brock, S. S. Brown, R. A. Washenfelder
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 7235-7252 (2021)
Biomass burning aerosol is a major source of PM2.5, and significantly affects Earth's radiative budget. The magnitude of its radiative effect is poorly quantified due to uncertainty in the optical properties of aerosol formed from biomass burning. Us
Externí odkaz:
https://doaj.org/article/62a607f2b79c47e5be68594796e1d998
Autor:
M. Lao, L. R. Crilley, L. Salehpoor, T. C. Furlani, I. Bourgeois, J. A. Neuman, A. W. Rollins, P. R. Veres, R. A. Washenfelder, C. C. Womack, C. J. Young, T. C. VandenBoer
Publikováno v:
Atmospheric Measurement Techniques, Vol 13, Pp 5873-5890 (2020)
Atmospheric HONO mixing ratios in indoor and outdoor environments span a range of less than a few parts per trillion by volume (pptv) up to tens of parts per billion by volume (ppbv) in combustion plumes. Previous HONO calibration sources have utiliz
Externí odkaz:
https://doaj.org/article/69f1e4a16b8041a8a890cf5d9dea1438
Autor:
A. Moravek, J. G. Murphy, A. Hrdina, J. C. Lin, C. Pennell, A. Franchin, A. M. Middlebrook, D. L. Fibiger, C. C. Womack, E. E. McDuffie, R. Martin, K. Moore, M. Baasandorj, S. S. Brown
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 15691-15709 (2019)
Ammonium-containing aerosols are a major component of wintertime air pollution in many densely populated regions around the world. Especially in mountain basins, the formation of persistent cold-air pools (PCAPs) can enhance particulate matter with d
Externí odkaz:
https://doaj.org/article/05350878f1974260b7331922f7592d1d
Autor:
E. E. McDuffie, C. C. Womack, D. L. Fibiger, W. P. Dube, A. Franchin, A. M. Middlebrook, L. Goldberger, B. H. Lee, J. A. Thornton, A. Moravek, J. G. Murphy, M. Baasandorj, S. S. Brown
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 9287-9308 (2019)
Mountain basins in Northern Utah, including the Salt Lake Valley (SLV), suffer from wintertime air pollution events associated with stagnant atmospheric conditions. During these events, fine particulate matter concentrations (PM2.5) can exceed nation
Externí odkaz:
https://doaj.org/article/bc13f0855bc449b4a8c73c23aedda5c0
Autor:
A. Franchin, D. L. Fibiger, L. Goldberger, E. E. McDuffie, A. Moravek, C. C. Womack, E. T. Crosman, K. S. Docherty, W. P. Dube, S. W. Hoch, B. H. Lee, R. Long, J. G. Murphy, J. A. Thornton, S. S. Brown, M. Baasandorj, A. M. Middlebrook
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 17259-17276 (2018)
Airborne and ground-based measurements of aerosol concentrations, chemical composition, and gas-phase precursors were obtained in three valleys in northern Utah (USA). The measurements were part of the Utah Winter Fine Particulate Study (UWFPS) th
Externí odkaz:
https://doaj.org/article/41cb310f8c5542218641af9ad5446c34