Zobrazeno 1 - 10
of 39
pro vyhledávání: '"R P Griffin"'
Autor:
S. Shrestha, S. Zhou, M. Mehra, M. Guagenti, S. Yoon, S. L. Alvarez, F. Guo, C.-Y. Chao, J. H. Flynn III, Y. Wang, R. J. Griffin, S. Usenko, R. J. Sheesley
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 10845-10867 (2023)
As criteria pollutants from anthropogenic emissions have declined in the US in the last 2 decades, biomass burning (BB) emissions are becoming more important for urban air quality. Tracking the transported BB emissions and their impacts is challengin
Externí odkaz:
https://doaj.org/article/7b246e872f374a7ea4d56fb1f606d9ca
Autor:
B. Actkinson, R. J. Griffin
Publikováno v:
Atmospheric Measurement Techniques, Vol 16, Pp 3547-3559 (2023)
Mobile monitoring is becoming an increasingly popular technique to assess air pollution on fine spatial scales, but methods to determine specific source contributions to measured pollutants are sorely needed. One approach is to isolate plumes from mo
Externí odkaz:
https://doaj.org/article/8e0d1d6c12b3411480904d21e893c4b8
Autor:
A. A. T. Bui, H. W. Wallace, S. Kavassalis, H. D. Alwe, J. H. Flynn, M. H. Erickson, S. Alvarez, D. B. Millet, A. L. Steiner, R. J. Griffin
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 17031-17050 (2021)
Exchanges of energy and mass between the surrounding air and plant surfaces occur below, within, and above a forest's vegetative canopy. The canopy also can lead to vertical gradients in light, trace gases, oxidant availability, turbulent mixing, and
Externí odkaz:
https://doaj.org/article/4b44fcfba9b74e1aa91f651bb2c398b7
Autor:
D. Wei, H. D. Alwe, D. B. Millet, B. Bottorff, M. Lew, P. S. Stevens, J. D. Shutter, J. L. Cox, F. N. Keutsch, Q. Shi, S. C. Kavassalis, J. G. Murphy, K. T. Vasquez, H. M. Allen, E. Praske, J. D. Crounse, P. O. Wennberg, P. B. Shepson, A. A. T. Bui, H. W. Wallace, R. J. Griffin, N. W. May, M. Connor, J. H. Slade, K. A. Pratt, E. C. Wood, M. Rollings, B. L. Deming, D. C. Anderson, A. L. Steiner
Publikováno v:
Geoscientific Model Development, Vol 14, Pp 6309-6329 (2021)
The FORCAsT (FORest Canopy Atmosphere Transfer) model version 1.0 is updated to FORCAsT 2.0 by implementing five major changes, including (1) a change to the operator splitting, separating chemistry from emission and dry deposition, which reduces the
Externí odkaz:
https://doaj.org/article/7ef1e45541fe4cd98818e53c0ab3fff4
SIBaR: a new method for background quantification and removal from mobile air pollution measurements
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 5809-5821 (2021)
Mobile monitoring is becoming increasingly popular for characterizing air pollution on fine spatial scales. In identifying local source contributions to measured pollutant concentrations, the detection and quantification of background are key steps i
Externí odkaz:
https://doaj.org/article/6ae96d41f9694757ba9cb893e1a1b7a8
Autor:
C. L. Sirmollo, D. R. Collins, J. M. McCormick, C. F. Milan, M. H. Erickson, J. H. Flynn, R. J. Sheesley, S. Usenko, H. W. Wallace, A. A. T. Bui, R. J. Griffin, M. Tezak, S. M. Kinahan, J. L. Santarpia
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 3351-3370 (2021)
Environmental chambers are a commonly used tool for studying the production and processing of aerosols in the atmosphere. Most are located indoors and most are filled with air having prescribed concentrations of a small number of reactive gas species
Externí odkaz:
https://doaj.org/article/1e28abe0f8dd405cbe46ae356ae8fb50
Publikováno v:
Geoscientific Model Development, Vol 14, Pp 907-921 (2021)
Here, we developed a zero-dimensional (0-D) modeling framework (LEVCHEM_v1) to provide insights into the atmospheric degradation of a key tracer emitted during biomass burning – levoglucosan (LEV), while additionally exploring its effects on the dy
Externí odkaz:
https://doaj.org/article/8d33eef2b8994e028805724c4175d4e5
Autor:
Q. Dai, B. C. Schulze, X. Bi, A. A. T. Bui, F. Guo, H. W. Wallace, N. P. Sanchez, J. H. Flynn, B. L. Lefer, Y. Feng, R. J. Griffin
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 9641-9661 (2019)
Submicron aerosol was measured to the southwest of Houston, Texas, during winter and summer 2014 to investigate its seasonal variability. Data from a high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS) indicated that organic aerosol
Externí odkaz:
https://doaj.org/article/9160de8255174b4db65c48418b43d5d0
Autor:
I. M. Al-Naiema, A. P. S. Hettiyadura, H. W. Wallace, N. P. Sanchez, C. J. Madler, B. K. Cevik, A. A. T. Bui, J. Kettler, R. J. Griffin, E. A. Stone
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 15601-15622 (2018)
Online and offline measurements of ambient particulate matter (PM) near the urban and industrial Houston Ship Channel in Houston, Texas, USA, during May 2015 were utilized to characterize its chemical composition and to evaluate the relative contr
Externí odkaz:
https://doaj.org/article/79985fe538924eed89841989c931dad3
Autor:
B. C. Schulze, H. W. Wallace, A. T. Bui, J. H. Flynn, M. H. Erickson, S. Alvarez, Q. Dai, S. Usenko, R. J. Sheesley, R. J. Griffin
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 14217-14241 (2018)
The air quality of the Texas Gulf Coast region historically has been influenced heavily by regional shipping emissions. However, the effects of the recently established North American Emissions Control Area on aerosol concentrations and properties
Externí odkaz:
https://doaj.org/article/4f54b5e0d158487da7e405995ee678be