Zobrazeno 1 - 10
of 30
pro vyhledávání: '"D. M. Westervelt"'
Publikováno v:
GeoHealth, Vol 8, Iss 9, Pp n/a-n/a (2024)
Abstract The paucity of fine particulate matter (PM2.5) measurements limits estimates of air pollution mortality in Sub‐Saharan Africa. Well calibrated low‐cost sensors can provide reliable data especially where reference monitors are unavailable
Externí odkaz:
https://doaj.org/article/9d6851483e724784b61604b885ac874c
Autor:
S. Fiedler, V. Naik, F. M. O'Connor, C. J. Smith, P. Griffiths, R. J. Kramer, T. Takemura, R. J. Allen, U. Im, M. Kasoar, A. Modak, S. Turnock, A. Voulgarakis, D. Watson-Parris, D. M. Westervelt, L. J. Wilcox, A. Zhao, W. J. Collins, M. Schulz, G. Myhre, P. M. Forster
Publikováno v:
Geoscientific Model Development, Vol 17, Pp 2387-2417 (2024)
The climate science community aims to improve our understanding of climate change due to anthropogenic influences on atmospheric composition and the Earth's surface. Yet not all climate interactions are fully understood, and uncertainty in climate mo
Externí odkaz:
https://doaj.org/article/1b85d53d85954c04908a88b49a926e62
Autor:
L. J. Wilcox, R. J. Allen, B. H. Samset, M. A. Bollasina, P. T. Griffiths, J. Keeble, M. T. Lund, R. Makkonen, J. Merikanto, D. O'Donnell, D. J. Paynter, G. G. Persad, S. T. Rumbold, T. Takemura, K. Tsigaridis, S. Undorf, D. M. Westervelt
Publikováno v:
Geoscientific Model Development, Vol 16, Pp 4451-4479 (2023)
Changes in anthropogenic aerosol emissions have strongly contributed to global and regional trends in temperature, precipitation, and other climate characteristics and have been one of the dominant drivers of decadal trends in Asian and African preci
Externí odkaz:
https://doaj.org/article/3644f724b0234752ac90541c1483a466
Autor:
F. Wiser, B. K. Place, S. Sen, H. O. T. Pye, B. Yang, D. M. Westervelt, D. K. Henze, A. M. Fiore, V. F. McNeill
Publikováno v:
Geoscientific Model Development, Vol 16, Pp 1801-1821 (2023)
Gas-phase oxidation of isoprene by ozone (O3) and the hydroxyl (OH) and nitrate (NO3) radicals significantly impacts tropospheric oxidant levels and secondary organic aerosol formation. The most comprehensive and up-to-date chemical mechanism for iso
Externí odkaz:
https://doaj.org/article/c0a4679a483941bf89a61ad2a6b102a2
Autor:
M. Sebastian, S. K. Kompalli, V. A. Kumar, S. Jose, S. S. Babu, G. Pandithurai, S. Singh, R. K. Hooda, V. K. Soni, J. R. Pierce, V. Vakkari, E. Asmi, D. M. Westervelt, A.-P. Hyvärinen, V. P. Kanawade
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 4491-4508 (2022)
Atmospheric new particle formation (NPF) is a crucial process driving aerosol number concentrations in the atmosphere; it can significantly impact the evolution of atmospheric aerosol and cloud processes. This study analyses at least 1 year of asynch
Externí odkaz:
https://doaj.org/article/d4f0681efece4adca94b342fc7e3d6c8
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 6799-6810 (2021)
The unintended consequences of reductions in regional anthropogenic sulfur dioxide (SO2) emissions implemented to protect human health are poorly understood. SO2 decreases began in the 1970s in the US and Europe and are expected to continue into the
Externí odkaz:
https://doaj.org/article/00487b38770d44b298d87a0f3fdb4066
Autor:
R. J. Allen, S. Turnock, P. Nabat, D. Neubauer, U. Lohmann, D. Olivié, N. Oshima, M. Michou, T. Wu, J. Zhang, T. Takemura, M. Schulz, K. Tsigaridis, S. E. Bauer, L. Emmons, L. Horowitz, V. Naik, T. van Noije, T. Bergman, J.-F. Lamarque, P. Zanis, I. Tegen, D. M. Westervelt, P. Le Sager, P. Good, S. Shim, F. O'Connor, D. Akritidis, A. K. Georgoulias, M. Deushi, L. T. Sentman, J. G. John, S. Fujimori, W. J. Collins
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 9641-9663 (2020)
It is important to understand how future environmental policies will impact both climate change and air pollution. Although targeting near-term climate forcers (NTCFs), defined here as aerosols, tropospheric ozone, and precursor gases, should improve
Externí odkaz:
https://doaj.org/article/ff28674986174f34b48cc99574175896
Autor:
C. Malings, D. M. Westervelt, A. Hauryliuk, A. A. Presto, A. Grieshop, A. Bittner, M. Beekmann, R. Subramanian
Publikováno v:
Atmospheric Measurement Techniques, Vol 13, Pp 3873-3892 (2020)
Low-cost particulate mass sensors provide opportunities to assess air quality at unprecedented spatial and temporal resolutions. Established traditional monitoring networks have limited spatial resolution and are simply absent in many major cities ac
Externí odkaz:
https://doaj.org/article/a73408201b5d48fea7cdc3a88fe15352
Autor:
D. M. Westervelt, N. R. Mascioli, A. M. Fiore, A. J. Conley, J.-F. Lamarque, D. T. Shindell, G. Faluvegi, M. Previdi, G. Correa, L. W. Horowitz
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 3009-3027 (2020)
The climatic implications of regional aerosol and precursor emissions reductions implemented to protect human health are poorly understood. We investigate the mean and extreme temperature response to regional changes in aerosol emissions using three
Externí odkaz:
https://doaj.org/article/0772a3c5bf564f138147f2b74a999c36
Autor:
J. M. Nicely, B. N. Duncan, T. F. Hanisco, G. M. Wolfe, R. J. Salawitch, M. Deushi, A. S. Haslerud, P. Jöckel, B. Josse, D. E. Kinnison, A. Klekociuk, M. E. Manyin, V. Marécal, O. Morgenstern, L. T. Murray, G. Myhre, L. D. Oman, G. Pitari, A. Pozzer, I. Quaglia, L. E. Revell, E. Rozanov, A. Stenke, K. Stone, S. Strahan, S. Tilmes, H. Tost, D. M. Westervelt, G. Zeng
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 1341-1361 (2020)
The hydroxyl radical (OH) plays critical roles within the troposphere, such as determining the lifetime of methane (CH4), yet is challenging to model due to its fast cycling and dependence on a multitude of sources and sinks. As a result, the reasons
Externí odkaz:
https://doaj.org/article/c97df44d765c46bf87f9b415808e5df5