Search Results - "Easter, R. C."

Description and evaluation of a new four-mode version of the Modal Aerosol Module (MAM4) within version 5.3 of the Community Atmosphere Model by Liu, X, Ma, P.-L, Wang, H, Tilmes, S, Singh, B, Easter, R. C, Ghan, S. J, Rasch, P. J

“…Atmospheric carbonaceous aerosols play an important role in the climate system by influencing the Earth's radiation budgets and modifying the cloud properties…”
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Quantifying sources, transport, deposition, and radiative forcing of black carbon over the Himalayas and Tibetan Plateau by Zhang, R, Wang, H, Qian, Y, Rasch, P. J, Easter, R. C, Ma, P.-L, Singh, B, Huang, J, Fu, Q

“…Black carbon (BC) particles over the Himalayas and Tibetan Plateau (HTP), both airborne and those deposited on snow, have been shown to affect snowmelt and…”
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Toward a Minimal Representation of Aerosols in Climate Models: Comparative Decomposition of Aerosol Direct, Semidirect, and Indirect Radiative Forcing by Ghan, S. J., Liu, X., Easter, R. C., Zaveri, R., Rasch, P. J., Yoon, J.-H., Eaton, B.

“…The authors have decomposed the anthropogenic aerosol radiative forcing into direct contributions from each aerosol species to the planetary energy balance…”
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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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Radiative forcing of the direct aerosol effect from AeroCom Phase II simulations by Myhre, G, Samset, B. H, Schulz, M, Balkanski, Y, Bauer, S, Berntsen, T. K, Bian, H, Bellouin, N, Chin, M, Diehl, T, Easter, R. C, Feichter, J, Ghan, S. J, Hauglustaine, D, Iversen, T, Kinne, S, Kirkevåg, A, Lamarque, J.-F, Lin, G, Liu, X, Lund, M. T, Luo, G, Ma, X, van Noije, T, Penner, J. E, Rasch, P. J, Ruiz, A, Seland, Ã, Skeie, R. B, Stier, P, Takemura, T, Tsigaridis, K, Wang, P, Wang, Z, Xu, L, Yu, H, Yu, F, Yoon, J.-H, Zhang, K, Zhang, H, Zhou, C

“…We report on the AeroCom Phase II direct aerosol effect (DAE) experiment where 16 detailed global aerosol models have been used to simulate the changes in the…”
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Toward a minimal representation of aerosols in climate models: description and evaluation in the Community Atmosphere Model CAM5 by Liu, X, Easter, R. C, Ghan, S. J, Zaveri, R, Rasch, P, Shi, X, Lamarque, J.-F, Gettelman, A, Morrison, H, Vitt, F, Conley, A, Park, S, Neale, R, Hannay, C, Ekman, A. M. L, Hess, P, Mahowald, N, Collins, W, Iacono, M. J, Bretherton, C. S, Flanner, M. G, Mitchell, D

“…A modal aerosol module (MAM) has been developed for the Community Atmosphere Model version 5 (CAM5), the atmospheric component of the Community Earth System…”
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The Lagrangian particle dispersion model FLEXPART-WRF version 3.1 by Brioude, J, Arnold, D, Stohl, A, Cassiani, M, Morton, D, Seibert, P, Angevine, W, Evan, S, Dingwell, A, Fast, J. D, Easter, R. C, Pisso, I, Burkhart, J, Wotawa, G

“…The Lagrangian particle dispersion model FLEXPART was originally designed for calculating long-range and mesoscale dispersion of air pollutants from point…”
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Modeling kinetic partitioning of secondary organic aerosol and size distribution dynamics: representing effects of volatility, phase state, and particle-phase reaction by Zaveri, R. A, Easter, R. C, Shilling, J. E, Seinfeld, J. H

“…This paper describes and evaluates a new framework for modeling kinetic gas-particle partitioning of secondary organic aerosol (SOA) that takes into account…”
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Simulating the evolution of soot mixing state with a particle‐resolved aerosol model by Riemer, N., West, M., Zaveri, R. A., Easter, R. C.

“…The mixing state of soot particles in the atmosphere is of crucial importance for assessing their climatic impact, since it governs their chemical reactivity,…”
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An Overview of the Atmospheric Component of the Energy Exascale Earth System Model by Rasch, P. J., Xie, S., Ma, P.‐L., Lin, W., Wang, H., Tang, Q., Burrows, S. M., Caldwell, P., Zhang, K., Easter, R. C., Cameron‐Smith, P., Singh, B., Wan, H., Golaz, J.‐C., Harrop, B. E., Roesler, E., Bacmeister, J., Larson, V. E., Evans, K. J., Qian, Y., Taylor, M., Leung, L. R., Zhang, Y., Brent, L., Branstetter, M., Hannay, C., Mahajan, S., Mametjanov, A., Neale, R., Richter, J. H., Yoon, J.‐H., Zender, C. S., Bader, D., Flanner, M., Foucar, J. G., Jacob, R., Keen, N., Klein, S. A., Liu, X., Salinger, A.G., Shrivastava, M., Yang, Y.

“…The Energy Exascale Earth System Model Atmosphere Model version 1, the atmospheric component of the Department of Energy's Energy Exascale Earth System Model…”
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Sensitivity of remote aerosol distributions to representation of cloud–aerosol interactions in a global climate model by Wang, H, Easter, R. C, Rasch, P. J, Wang, M, Liu, X, Ghan, S. J, Qian, Y, Yoon, J.-H, Ma, P.-L, Vinoj, V

“…Many global aerosol and climate models, including the widely used Community Atmosphere Model version 5 (CAM5), have large biases in predicting aerosols in…”
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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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Coupling aerosol-cloud-radiative processes in the WRF-Chem model: Investigating the radiative impact of elevated point sources by Chapman, E. G., Gustafson, W. I., Easter, R. C., Barnard, J. C., Ghan, S. J., Pekour, M. S., Fast, J. D.

“…The local and regional influence of elevated point sources on summertime aerosol forcing and cloud-aerosol interactions in northeastern North America was…”
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Evaluation of observed and modelled aerosol lifetimes using radioactive tracers of opportunity and an ensemble of 19 global models by Kristiansen, N. I, Stohl, A, Olivié, D. J. L, Croft, B, Søvde, O. A, Klein, H, Christoudias, T, Kunkel, D, Leadbetter, S. J, Lee, Y. H, Zhang, K, Tsigaridis, K, Bergman, T, Evangeliou, N, Wang, H, Ma, P.-L, Easter, R. C, Rasch, P. J, Liu, X, Pitari, G, Di Genova, G, Zhao, S. Y, Balkanski, Y, Bauer, S. E, Faluvegi, G. S, Kokkola, H, Martin, R. V, Pierce, J. R, Schulz, M, Shindell, D, Tost, H, Zhang, H

“…Aerosols have important impacts on air quality and climate, but the processes affecting their removal from the atmosphere are not fully understood and are…”
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Sensitivity of tropospheric chemical composition to halogen-radical chemistry using a fully coupled size-resolved multiphase chemistry–global climate system: halogen distributions, aerosol composition, and sensitivity of climate-relevant gases by Long, M. S, Keene, W. C, Easter, R. C, Sander, R, Liu, X, Kerkweg, A, Erickson, D

“…Observations and model calculations indicate that highly non-linear multiphase atmospheric processes involving inorganic Cl and Br significantly impact…”
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Assessing the CAM5 physics suite in the WRF-Chem model: implementation, resolution sensitivity, and a first evaluation for a regional case study by Ma, P.-L, Rasch, P. J, Fast, J. D, Easter, R. C, Gustafson Jr., W. I, Liu, X, Ghan, S. J, Singh, B

“…A suite of physical parameterizations (deep and shallow convection, turbulent boundary layer, aerosols, cloud microphysics, and cloud fraction) from the global…”
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Indirect radiative forcing by ion-mediated nucleation of aerosol by Yu, F, Luo, G, Liu, X, Easter, R. C, Ma, X, Ghan, S. J

“…A clear understanding of particle formation mechanisms is critical for assessing aerosol indirect radiative forcing and associated climate feedback processes…”
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Assessing regional scale predictions of aerosols, marine stratocumulus, and their interactions during VOCALS-REx using WRF-Chem by Yang, Q., Fast, J. D., Wang, H., Easter, R. C., Morrison, H., Lee, Y.-N., Chapman, E. G., Spak, S. N., Mena-Carrasco, M. A.

“…This study assesses the ability of the recent chemistry version (v3.3) of the Weather Research and Forecasting (WRF-Chem) model to simulate boundary layer…”
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A new WRF-Chem treatment for studying regional-scale impacts of cloud processes on aerosol and trace gases in parameterized cumuli by Berg, L. K, Shrivastava, M, Easter, R. C, Fast, J. D, Chapman, E. G, Liu, Y, Ferrare, R. A

“…A new treatment of cloud effects on aerosol and trace gases within parameterized shallow and deep convection, and aerosol effects on cloud droplet number, has…”
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Impact of natural and anthropogenic aerosols on stratocumulus and precipitation in the Southeast Pacific: a regional modelling study using WRF-Chem by Yang, Q, Gustafson Jr., W. I, Fast, J. D, Wang, H, Easter, R. C, Wang, M, Ghan, S. J, Berg, L. K, Leung, L. R, Morrison, H

“…Cloud-system resolving simulations with the chemistry version of the Weather Research and Forecasting (WRF-Chem) model are used to quantify the relative…”
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