Search Results - "Penner, J. E"

Global simulations of nitrate and ammonium aerosols and their radiative effects by Xu, L, Penner, J. E

“…We examine the formation of nitrate and ammonium on five types of externally mixed pre-existing aerosols using the hybrid dynamic method in a global chemistry…”
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Enhanced solar energy absorption by internally-mixed black carbon in snow grains by Flanner, M. G, Liu, X, Zhou, C, Penner, J. E, Jiao, C

“…Here we explore light absorption by snowpack containing black carbon (BC) particles residing within ice grains. Basic considerations of particle volumes and…”
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Dehydration effects from contrails in a coupled contrail–climate model by Schumann, U, Penner, J E, Chen, Yibin, Zhou, Cheng, Graf, K

“…The uptake of water by contrails in ice-supersaturated air and the release of water after ice particle advection and sedimentation dehydrates the atmosphere at…”
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Global modeling of SOA formation from dicarbonyls, epoxides, organic nitrates and peroxides by Lin, G, Penner, J. E, Sillman, S, Taraborrelli, D, Lelieveld, J

“…Recent experimental findings indicate that secondary organic aerosol (SOA) represents an important and, under many circumstances, the major fraction of the…”
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Global modeling of SOA: the use of different mechanisms for aqueous-phase formation by Lin, G, Sillman, S, Penner, J. E, Ito, A

“…There is growing interest in the formation of secondary organic aerosol (SOA) through condensed aqueous-phase reactions. In this study, we use a global model…”
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Changes in black carbon deposition to Antarctica from two high-resolution ice core records, 1850–2000 AD by Bisiaux, M. M, Edwards, R, McConnell, J. R, Curran, M. A. J, Van Ommen, T. D, Smith, A. M, Neumann, T. A, Pasteris, D. R, Penner, J. E, Taylor, K

“…Refractory black carbon aerosols (rBC) emitted by biomass burning (fires) and fossil fuel combustion, affect global climate and atmospheric chemistry. In the…”
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Modelled black carbon radiative forcing and atmospheric lifetime in AeroCom Phase II constrained by aircraft observations by Samset, B. H, Myhre, G, Herber, A, Kondo, Y, Li, S.-M, Moteki, N, Koike, M, Oshima, N, Schwarz, J. P, Balkanski, Y, Bauer, S. E, Bellouin, N, Berntsen, T. K, Bian, H, Chin, M, Diehl, T, Easter, R. C, Ghan, S. J, Iversen, T, Kirkevåg, A, Lamarque, J.-F, Lin, G, Liu, X, Penner, J. E, Schulz, M, Seland, Ã, Skeie, R. B, Stier, P, Takemura, T, Tsigaridis, K, Zhang, K

“…Atmospheric black carbon (BC) absorbs solar radiation, and exacerbates global warming through exerting positive radiative forcing (RF). However, the…”
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Black carbon vertical profiles strongly affect its radiative forcing uncertainty by Samset, B. H, Myhre, G, Schulz, M, Balkanski, Y, Bauer, S, Berntsen, T. K, Bian, H, Bellouin, N, Diehl, T, Easter, R. C, Ghan, S. J, Iversen, T, Kinne, S, Kirkevåg, A, Lamarque, J.-F, Lin, G, Liu, X, Penner, J. E, Seland, Ã, Skeie, R. B, Stier, P, Takemura, T, Tsigaridis, K, Zhang, K

“…The impact of black carbon (BC) aerosols on the global radiation balance is not well constrained. Here twelve global aerosol models are used to show that at…”
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The effects of hygroscopicity on ice nucleation of fossil fuel combustion aerosols in mixed-phase clouds by Yun, Y, Penner, J. E, Popovicheva, O

“…Fossil fuel black carbon and organic matter (ffBC/OM) are often emitted together with sulfate, which coats the surface of these particles and changes their…”
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Transport impacts on atmosphere and climate: Aviation by Lee, D.S., Pitari, G., Grewe, V., Gierens, K., Penner, J.E., Petzold, A., Prather, M.J., Schumann, U., Bais, A., Berntsen, T., Iachetti, D., Lim, L.L., Sausen, R.

“…Aviation alters the composition of the atmosphere globally and can thus drive climate change and ozone depletion. The last major international assessment of…”
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Formation of C7F15COOH (PFOA) and Other Perfluorocarboxylic Acids during the Atmospheric Oxidation of 8:2 Fluorotelomer Alcohol by Wallington, T. J, Hurley, M. D, Xia, J, Wuebbles, D. J, Sillman, S, Ito, A, Penner, J. E, Ellis, D. A, Martin, J, Mabury, S. A, Nielsen, O. J, Sulbaek Andersen, M. P

“…Calculations using a three-dimensional global atmospheric chemistry model (IMPACT) indicate that n-C8F17CH2CH2OH (widely used in industrial and consumer…”
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PRIVATE LAW OFFICES by Penner, JE

“…Offices have a vital, but limited, role to play in private law. This article analyses the nature of private law offices, concluding, first, that the identity…”
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Host model uncertainties in aerosol radiative forcing estimates: results from the AeroCom Prescribed intercomparison study by Stier, P, Schutgens, N. A. J, Bellouin, N, Bian, H, Boucher, O, Chin, M, Ghan, S, Huneeus, N, Kinne, S, Lin, G, Ma, X, Myhre, G, Penner, J. E, Randles, C. A, Samset, B, Schulz, M, Takemura, T, Yu, F, Yu, H, Zhou, C

“…Simulated multi-model "diversity" in aerosol direct radiative forcing estimates is often perceived as a measure of aerosol uncertainty. However, current models…”
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Cirrus clouds in a global climate model with a statistical cirrus cloud scheme by Wang, M., Penner, J. E.

“…A statistical cirrus cloud scheme that accounts for mesoscale temperature perturbations is implemented in a coupled aerosol and atmospheric circulation model…”
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Uncertainty analysis for estimates of the first indirect aerosol effect by Chen, Y., Penner, J. E.

“…The IPCC has stressed the importance of producing unbiased estimates of the uncertainty in indirect aerosol forcing, in order to give policy makers as well as…”
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An AeroCom assessment of black carbon in Arctic snow and sea ice by Jiao, C, Flanner, M. G, Balkanski, Y, Bauer, S. E, Bellouin, N, Berntsen, T. K, Bian, H, Carslaw, K. S, Chin, M, De Luca, N, Diehl, T, Ghan, S. J, Iversen, T, Kirkevåg, A, Koch, D, Liu, X, Mann, G. W, Penner, J. E, Pitari, G, Schulz, M, Seland, Ã, Skeie, R. B, Steenrod, S. D, Stier, P, Takemura, T, Tsigaridis, K, van Noije, T, Yun, Y, Zhang, K

“…Though many global aerosols models prognose surface deposition, only a few models have been used to directly simulate the radiative effect from black carbon…”
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Variability of black carbon deposition to the East Antarctic Plateau, 1800–2000 AD by Bisiaux, M. M, Edwards, R, McConnell, J. R, Albert, M. R, Anschütz, H, Neumann, T. A, Isaksson, E, Penner, J. E

“…Refractory black carbon aerosols (rBC) from biomass burning and fossil fuel combustion are deposited to the Antarctic ice sheet and preserve a history of…”
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Emissions of primary aerosol and precursor gases in the years 2000 and 1750 prescribed data-sets for AeroCom by Dentener, F., Kinne, S., Bond, T., Boucher, O., Cofala, J., Generoso, S., Ginoux, P., Gong, S., Hoelzemann, J. J., Ito, A., Marelli, L., Penner, J. E., Putaud, J.-P., Textor, C., Schulz, M., van der Werf, G. R., Wilson, J.

“…Inventories for global aerosol and aerosol precursor emissions have been collected (based on published inventories and published simulations), assessed and…”
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New representation of water activity based on a single solute specific constant to parameterize the hygroscopic growth of aerosols in atmospheric models by Metzger, S, Steil, B, Xu, L, Penner, J. E, Lelieveld, J

“…Water activity is a key factor in aerosol thermodynamics and hygroscopic growth. We introduce a new representation of water activity (aw), which is empirically…”
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Radiative forcing by aerosols as derived from the AeroCom present-day and pre-industrial simulations by Schulz, M., Textor, C., Kinne, S., Balkanski, Y., Bauer, S., Berntsen, T., Berglen, T., Boucher, O., Dentener, F., Guibert, S., Isaksen, I. S. A., Iversen, T., Koch, D., Kirkevåg, A., Liu, X., Montanaro, V., Myhre, G., Penner, J. E., Pitari, G., Reddy, S., Seland, Ø., Stier, P., Takemura, T.

“…Nine different global models with detailed aerosol modules have independently produced instantaneous direct radiative forcing due to anthropogenic aerosols…”
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