Zobrazeno 1 - 10
of 776
pro vyhledávání: '"J S Holloway"'
Autor:
N. L. Wagner, C. A. Brock, W. M. Angevine, A. Beyersdorf, P. Campuzano-Jost, D. Day, J. A. de Gouw, G. S. Diskin, T. D. Gordon, M. G. Graus, J. S. Holloway, G. Huey, J. L. Jimenez, D. A. Lack, J. Liao, X. Liu, M. Z. Markovic, A. M. Middlebrook, T. Mikoviny, J. Peischl, A. E. Perring, M. S. Richardson, T. B. Ryerson, J. P. Schwarz, C. Warneke, A. Welti, A. Wisthaler, L. D. Ziemba, D. M. Murphy
Publikováno v:
Atmospheric Chemistry and Physics, Vol 15, Iss 12, Pp 7085-7102 (2015)
Vertical profiles of submicron aerosol from in situ aircraft-based measurements were used to construct aggregate profiles of chemical, microphysical, and optical properties. These vertical profiles were collected over the southeastern United States (
Externí odkaz:
https://doaj.org/article/ca5d5b60c54b4ce796af3abee6375ee6
Publikováno v:
Geoscientific Model Development, Vol 7, Iss 6, Pp 2817-2829 (2014)
Lagrangian particle dispersion models require meteorological fields as input. Uncertainty in the driving meteorology is one of the major uncertainties in the results. The propagation of uncertainty through the system is not simple, and it has not bee
Externí odkaz:
https://doaj.org/article/ff6f8b9b0f6647c5bd3d03e05fa66360
Autor:
G. W. Santoni, B. C. Daube, E. A. Kort, R. Jiménez, S. Park, J. V. Pittman, E. Gottlieb, B. Xiang, M. S. Zahniser, D. D. Nelson, J. B. McManus, J. Peischl, T. B. Ryerson, J. S. Holloway, A. E. Andrews, C. Sweeney, B. Hall, E. J. Hintsa, F. L. Moore, J. W. Elkins, D. F. Hurst, B. B. Stephens, J. Bent, S. C. Wofsy
Publikováno v:
Atmospheric Measurement Techniques, Vol 7, Iss 6, Pp 1509-1526 (2014)
We present an evaluation of aircraft observations of the carbon and greenhouse gases CO2, CH4, N2O, and CO using a direct-absorption pulsed quantum cascade laser spectrometer (QCLS) operated during the HIPPO and CalNex airborne experiments. The QCLS
Externí odkaz:
https://doaj.org/article/3c547045150e4fc2b8f5124ab82a924e
Autor:
C. J. Young, R. A. Washenfelder, P. M. Edwards, D. D. Parrish, J. B. Gilman, W. C. Kuster, L. H. Mielke, H. D. Osthoff, C. Tsai, O. Pikelnaya, J. Stutz, P. R. Veres, J. M. Roberts, S. Griffith, S. Dusanter, P. S. Stevens, J. Flynn, N. Grossberg, B. Lefer, J. S. Holloway, J. Peischl, T. B. Ryerson, E. L. Atlas, D. R. Blake, S. S. Brown
Publikováno v:
Atmospheric Chemistry and Physics, Vol 14, Iss 7, Pp 3427-3440 (2014)
The role of chlorine atoms (Cl) in atmospheric oxidation has been traditionally thought to be limited to the marine boundary layer, where they are produced through heterogeneous reactions involving sea salt. However, recent observation of photolytic
Externí odkaz:
https://doaj.org/article/7ba556f1fdc84142b25b3af677a4585d
Autor:
T. P. Riedel, G. M. Wolfe, K. T. Danas, J. B. Gilman, W. C. Kuster, D. M. Bon, A. Vlasenko, S.-M. Li, E. J. Williams, B. M. Lerner, P. R. Veres, J. M. Roberts, J. S. Holloway, B. Lefer, S. S. Brown, J. A. Thornton
Publikováno v:
Atmospheric Chemistry and Physics, Vol 14, Iss 8, Pp 3789-3800 (2014)
Nitryl chloride (ClNO2) is produced at night by reactions of dinitrogen pentoxide (N2O5) on chloride containing surfaces. ClNO2 is photolyzed during the morning hours after sunrise to liberate highly reactive chlorine atoms (Cl·). This chemistry tak
Externí odkaz:
https://doaj.org/article/90609dcb45814d8fbcb8804f9a211da9
Autor:
J. J. Ensberg, P. L. Hayes, J. L. Jimenez, J. B. Gilman, W. C. Kuster, J. A. de Gouw, J. S. Holloway, T. D. Gordon, S. Jathar, A. L. Robinson, J. H. Seinfeld
Publikováno v:
Atmospheric Chemistry and Physics, Vol 14, Iss 5, Pp 2383-2397 (2014)
The underprediction of ambient secondary organic aerosol (SOA) levels by current atmospheric models in urban areas is well established, yet the cause of this underprediction remains elusive. Likewise, the relative contribution of emissions from gasol
Externí odkaz:
https://doaj.org/article/b6ac7f01433649acbbf47579d7db220a
Autor:
S. S. Brown, W. P. Dubé, R. Bahreini, A. M. Middlebrook, C. A. Brock, C. Warneke, J. A. de Gouw, R. A. Washenfelder, E. Atlas, J. Peischl, T. B. Ryerson, J. S. Holloway, J. P. Schwarz, R. Spackman, M. Trainer, D. D. Parrish, F. C. Fehshenfeld, A. R. Ravishankara
Publikováno v:
Atmospheric Chemistry and Physics, Vol 13, Iss 22, Pp 11317-11337 (2013)
Organic compounds are a large component of aerosol mass, but organic aerosol (OA) sources remain poorly characterized. Recent model studies have suggested nighttime oxidation of biogenic hydrocarbons as a potentially large OA source, but analysis of
Externí odkaz:
https://doaj.org/article/e8bf44f6fc6144eaa60624dc916a6f9e
Autor:
P. M. Edwards, C. J. Young, K. Aikin, J. deGouw, W. P. Dubé, F. Geiger, J. Gilman, D. Helmig, J. S. Holloway, J. Kercher, B. Lerner, R. Martin, R. McLaren, D. D. Parrish, J. Peischl, J. M. Roberts, T. B. Ryerson, J. Thornton, C. Warneke, E. J. Williams, S. S. Brown
Publikováno v:
Atmospheric Chemistry and Physics, Vol 13, Iss 17, Pp 8955-8971 (2013)
The Uintah Basin in northeastern Utah, a region of intense oil and gas extraction, experienced ozone (O3) concentrations above levels harmful to human health for multiple days during the winters of 2009–2010 and 2010–2011. These wintertime O3 pol
Externí odkaz:
https://doaj.org/article/c0d6d3230f4d48e3af191f2847e398ec
Autor:
W. Zhou, D. S. Cohan, R. W. Pinder, J. A. Neuman, J. S. Holloway, J. Peischl, T. B. Ryerson, J. B. Nowak, F. Flocke, W. G. Zheng
Publikováno v:
Atmospheric Chemistry and Physics, Vol 12, Iss 1, Pp 455-468 (2012)
During the second Texas Air Quality Study 2006 (TexAQS II), a full range of pollutants was measured by aircraft in eastern Texas during successive transects of power plant plumes (PPPs). A regional photochemical model is applied to simulate the physi
Externí odkaz:
https://doaj.org/article/31692ee4408f4ff59fd579d0a44595fa
Autor:
R. G. Stevens, J. R. Pierce, C. A. Brock, M. K. Reed, J. H. Crawford, J. S. Holloway, T. B. Ryerson, L. G. Huey, J. B. Nowak
Publikováno v:
Atmospheric Chemistry and Physics, Vol 12, Iss 1, Pp 189-206 (2012)
New-particle formation in the plumes of coal-fired power plants and other anthropogenic sulfur sources may be an important source of particles in the atmosphere. It remains unclear, however, how best to reproduce this formation in global and regional
Externí odkaz:
https://doaj.org/article/644fdda1be89480c87d623346160c45f