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Akademický článek

Source sector and region contributions to BC and PM2.5 in Central Asia

Publikováno v: Atmospheric Chemistry and Physics, Vol 15, Iss 4, Pp 1683-1705 (2015)

Particulate matter (PM) mass concentrations, seasonal cycles, source sector, and source region contributions in Central Asia (CA) are analyzed for the period April 2008–July 2009 using the Sulfur Transport and dEposition Model (STEM) chemical trans

Externí odkaz: https://doaj.org/article/75ab5e4e11b74e40b496aaa6d0a297e4

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Akademický článek

Global and regional modeling of clouds and aerosols in the marine boundary layer during VOCALS: the VOCA intercomparison

Autor: M. C. Wyant, C. S. Bretherton, R. Wood, G. R. Carmichael, A. Clarke, J. Fast, R. George, W. I. Gustafson Jr., C. Hannay, A. Lauer, Y. Lin, J.-J. Morcrette, J. Mulcahy, P. E. Saide, S. N. Spak, Q. Yang

Publikováno v: Atmospheric Chemistry and Physics, Vol 15, Iss 1, Pp 153-172 (2015)

A diverse collection of models are used to simulate the marine boundary layer in the southeast Pacific region during the period of the October–November 2008 VOCALS REx (VAMOS Ocean Cloud Atmosphere Land Study Regional Experiment) field campaign. Re

Externí odkaz: https://doaj.org/article/a3f0c8938e1a4af98f47b12268c44c65

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Akademický článek

Impacts of transported background pollutants on summertime western US air quality: model evaluation, sensitivity analysis and data assimilation

Autor: M. Huang, G. R. Carmichael, T. Chai, R. B. Pierce, S. J. Oltmans, D. A. Jaffe, K. W. Bowman, A. Kaduwela, C. Cai, S. N. Spak, A. J. Weinheimer, L. G. Huey, G. S. Diskin

Publikováno v: Atmospheric Chemistry and Physics, Vol 13, Iss 1, Pp 359-391 (2013)

The impacts of transported background (TBG) pollutants on western US ozone (O3) distributions in summer 2008 are studied using the multi-scale Sulfur Transport and dEposition Modeling system. Forward sensitivity simulations show that TBG contributes

Externí odkaz: https://doaj.org/article/a5e8f43185c24042835c1461302b5137

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Akademický článek

Overview of the LADCO winter nitrate study: hourly ammonia, nitric acid and PM2.5 composition at an urban and rural site pair during PM2.5 episodes in the US Great Lakes region

Autor: S. Shaw, S. Sousan, S. R. Lee, N. Riemer, T. Rohlf, J. Oleson, M. Koerber, E. Edgerton, D. Kenski, G. Carmichael, M. Caughey, J. Baek, W. Adamski, A. Singh, C. Stanier, S. N. Spak

Publikováno v: Atmospheric Chemistry and Physics, Vol 12, Iss 22, Pp 11037-11056 (2012)

An overview of the LADCO (Lake Michigan Air Directors Consortium) Winter Nitrate Study (WNS) is presented. Sampling was conducted at ground level at an urban-rural pair of sites during January–March 2009 in eastern Wisconsin, toward the western edg

Externí odkaz: https://doaj.org/article/5406f3071e7549ef8c40ca98afcc8d76

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Akademický článek

An assessment of atmospheric mercury in the Community Multiscale Air Quality (CMAQ) model at an urban site and a rural site in the Great Lakes Region of North America

Autor: T. Holloway, C. Voigt, J. Morton, S. N. Spak, A. P. Rutter, J. J. Schauer

Publikováno v: Atmospheric Chemistry and Physics, Vol 12, Iss 15, Pp 7117-7133 (2012)

Quantitative analysis of three atmospheric mercury species – gaseous elemental mercury (Hg0), reactive gaseous mercury (RGHg) and particulate mercury (PHg) – has been limited to date by lack of ambient measurement data as well as by uncertainties

Externí odkaz: https://doaj.org/article/d089eee77e29497c8a027e60b5fe8ab8

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Akademický článek

Evaluating WRF-Chem aerosol indirect effects in Southeast Pacific marine stratocumulus during VOCALS-REx

Autor: P. E. Saide, S. N. Spak, G. R. Carmichael, M. A. Mena-Carrasco, Q. Yang, S. Howell, D. C. Leon, J. R. Snider, A. R. Bandy, J. L. Collett, K. B. Benedict, S. P. de Szoeke, L. N. Hawkins, G. Allen, I. Crawford, J. Crosier, S. R. Springston

Publikováno v: Atmospheric Chemistry and Physics, Vol 12, Iss 6, Pp 3045-3064 (2012)

We evaluate a regional-scale simulation with the WRF-Chem model for the VAMOS (Variability of the American Monsoon Systems) Ocean-Cloud-Atmosphere-Land Study Regional Experiment (VOCALS-REx), which sampled the Southeast Pacific's persistent stratocum

Externí odkaz: https://doaj.org/article/6fc6c6599dce435b8e7452682f01fd9a

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Akademický článek

Assessing regional scale predictions of aerosols, marine stratocumulus, and their interactions during VOCALS-REx using WRF-Chem

Autor: Q. Yang, W. I. Gustafson Jr., J. D. Fast, H. Wang, R. C. Easter, H. Morrison, Y.-N. Lee, E. G. Chapman, S. N. Spak, M. A. Mena-Carrasco

Publikováno v: Atmospheric Chemistry and Physics, Vol 11, Iss 23, Pp 11951-11975 (2011)

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 structure, aerosols, stratocumulus clouds, and energy fluxes over the Southeast Pacific Ocean.

Externí odkaz: https://doaj.org/article/4135df36b7c349eb9c9b9e8c0a1e47ca

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Akademický článek

Multi-scale modeling study of the source contributions to near-surface ozone and sulfur oxides levels over California during the ARCTAS-CARB period

Publikováno v: Atmospheric Chemistry and Physics, Vol 11, Iss 7, Pp 3173-3194 (2011)

Chronic high surface ozone (O3) levels and the increasing sulfur oxides (SOx = SO2+SO4) ambient concentrations over South Coast (SC) and other areas of California (CA) are affected by both local emissions and long-range transport. In this paper, mult

Externí odkaz: https://doaj.org/article/9b6da2b40b094af9b20691e1db021725

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Akademický článek

Impacts of transported background ozone on California air quality during the ARCTAS-CARB period – a multi-scale modeling study

Autor: M. Huang, G. R. Carmichael, B. Adhikary, S. N. Spak, S. Kulkarni, Y. F. Cheng, C. Wei, Y. Tang, D. D. Parrish, S. J. Oltmans, A. D'Allura, A. Kaduwela, C. Cai, A. J. Weinheimer, M. Wong, R. B. Pierce, J. A. Al-Saadi, D. G. Streets, Q. Zhang

Publikováno v: Atmospheric Chemistry and Physics, Vol 10, Iss 14, Pp 6947-6968 (2010)

Multi-scale tracer and full-chemistry simulations with the STEM atmospheric chemistry model are used to analyze the effects of transported background ozone (O3) from the eastern Pacific on California air quality during the ARCTAS-CARB experiment cond

Externí odkaz: https://doaj.org/article/8e4aa2c4ea294479ae71a7cf3926d502

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