Zobrazeno 1 - 10
of 250
pro vyhledávání: '"J A, Penner"'
Autor:
H. Bian, M. Chin, P. R. Colarco, E. C. Apel, D. R. Blake, K. Froyd, R. S. Hornbrook, J. Jimenez, P. C. Jost, M. Lawler, M. Liu, M. T. Lund, H. Matsui, B. A. Nault, J. E. Penner, A. W. Rollins, G. Schill, R. B. Skeie, H. Wang, L. Xu, K. Zhang, J. Zhu
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 1717-1741 (2024)
The atmospheric sulfur cycle plays a key role in air quality, climate, and ecosystems, such as pollution, radiative forcing, new particle formation, and acid rain. In this study, we compare the spatially and temporally resolved measurements from the
Externí odkaz:
https://doaj.org/article/662250ce9864410ab1d3053fd0cfc947
Autor:
Q. Zhong, N. Schutgens, G. van der Werf, T. van Noije, K. Tsigaridis, S. E. Bauer, T. Mielonen, A. Kirkevåg, Ø. Seland, H. Kokkola, R. Checa-Garcia, D. Neubauer, Z. Kipling, H. Matsui, P. Ginoux, T. Takemura, P. Le Sager, S. Rémy, H. Bian, M. Chin, K. Zhang, J. Zhu, S. G. Tsyro, G. Curci, A. Protonotariou, B. Johnson, J. E. Penner, N. Bellouin, R. B. Skeie, G. Myhre
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 11009-11032 (2022)
Global models are widely used to simulate biomass burning aerosol (BBA). Exhaustive evaluations on model representation of aerosol distributions and properties are fundamental to assess health and climate impacts of BBA. Here we conducted a comprehen
Externí odkaz:
https://doaj.org/article/b3723aecf29f4bfe9bef6e57f1608660
Autor:
J. Quaas, A. Arola, B. Cairns, M. Christensen, H. Deneke, A. M. L. Ekman, G. Feingold, A. Fridlind, E. Gryspeerdt, O. Hasekamp, Z. Li, A. Lipponen, P.-L. Ma, J. Mülmenstädt, A. Nenes, J. E. Penner, D. Rosenfeld, R. Schrödner, K. Sinclair, O. Sourdeval, P. Stier, M. Tesche, B. van Diedenhoven, M. Wendisch
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 15079-15099 (2020)
The Twomey effect describes the radiative forcing associated with a change in cloud albedo due to an increase in anthropogenic aerosol emissions. It is driven by the perturbation in cloud droplet number concentration (ΔNd, ant) in liquid-water cloud
Externí odkaz:
https://doaj.org/article/862f37254b0d4610bd4ddc48063cb14f
Autor:
J. Zhu, J. E. Penner
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 7801-7827 (2020)
Anthropogenic aerosols impact cirrus clouds through ice nucleation, thereby changing the Earth's radiation budget. However, the magnitude and sign of anthropogenic forcing in cirrus clouds is still very uncertain depending on the treatments for ice-n
Externí odkaz:
https://doaj.org/article/dbf74738dd72480e9c943df95a4ceba9
Autor:
G. Myhre, B. H. Samset, C. W. Mohr, K. Alterskjær, Y. Balkanski, N. Bellouin, M. Chin, J. Haywood, Ø. Hodnebrog, S. Kinne, G. Lin, M. T. Lund, J. E. Penner, M. Schulz, N. Schutgens, R. B. Skeie, P. Stier, T. Takemura, K. Zhang
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 8855-8865 (2020)
The radiative forcing of the aerosol–radiation interaction can be decomposed into clear-sky and cloudy-sky portions. Two sets of multi-model simulations within Aerosol Comparisons between Observations and Models (AeroCom), combined with observation
Externí odkaz:
https://doaj.org/article/b471e55547d4498ab7f2decb2b976855
Autor:
M. Sand, B. H. Samset, Y. Balkanski, S. Bauer, N. Bellouin, T. K. Berntsen, H. Bian, M. Chin, T. Diehl, R. Easter, S. J. Ghan, T. Iversen, A. Kirkevåg, J.-F. Lamarque, G. Lin, X. Liu, G. Luo, G. Myhre, T. V. Noije, J. E. Penner, M. Schulz, Ø. Seland, R. B. Skeie, P. Stier, T. Takemura, K. Tsigaridis, F. Yu, K. Zhang, H. Zhang
Publikováno v:
Atmospheric Chemistry and Physics, Vol 17, Pp 12197-12218 (2017)
Atmospheric aerosols from anthropogenic and natural sources reach the polar regions through long-range transport and affect the local radiation balance. Such transport is, however, poorly constrained in present-day global climate models, and few m
Externí odkaz:
https://doaj.org/article/39e99803b37141119e44ee40a652a344
Publikováno v:
Atmospheric Chemistry and Physics, Vol 17, Iss 7, Pp 4731-4749 (2017)
In this study we evaluate cloud properties simulated by the Community Atmosphere Model version 5 (CAM5) using in situ measurements from the HIAPER Pole-to-Pole Observations (HIPPO) campaign for the period of 2009 to 2011. The modeled wind and tempera
Externí odkaz:
https://doaj.org/article/aea42cd643b643928be1336702114b01
Autor:
C. Zhou, J. E. Penner
Publikováno v:
Atmospheric Chemistry and Physics, Vol 17, Iss 1, Pp 21-29 (2017)
Observation-based studies have shown that the aerosol cloud lifetime effect or the increase of cloud liquid water path (LWP) with increased aerosol loading may have been overestimated in climate models. Here, we simulate shallow warm clouds on 27 May
Externí odkaz:
https://doaj.org/article/fcbadece47b74b43b5855116f1d8a868
Publikováno v:
Atmospheric Chemistry and Physics, Vol 16, Pp 12411-12424 (2016)
Cirrus clouds in the tropical tropopause play a key role in regulating the moisture entering the stratosphere through their dehydrating effect. Low ice number concentrations ( −1) and high supersaturations (150–160 %) have been observed in the
Externí odkaz:
https://doaj.org/article/19dc7c87f15c49d5ba5c404280bc8786
Autor:
S. Metzger, B. Steil, M. Abdelkader, K. Klingmüller, L. Xu, J. E. Penner, C. Fountoukis, A. Nenes, J. Lelieveld
Publikováno v:
Atmospheric Chemistry and Physics, Vol 16, Pp 7213-7237 (2016)
We introduce a framework to efficiently parameterise the aerosol water uptake for mixtures of semi-volatile and non-volatile compounds, based on the coefficient, νi. This solute-specific coefficient was introduced in Metzger et al. (2012) to acc
Externí odkaz:
https://doaj.org/article/298b128f07d74801b7eb18f5fe5d6c8d