References

ACP

Atmospheric Chemistry and Physics

ACP

1680-7324

Copernicus GmbH

Göttingen, Germany

10.5194/acp-10-9-2010

A comprehensive evaluation of seasonal simulations of ozone in the northeastern US during summers of 2001–2005

Mao

¹ Chen

² Hegarty

J. D.

¹ Talbot

R. W.

¹ Koermer

J. P.

³ Thompson

A. M.

⁴ Avery

M. A.

⁵

Institute for the Study of Earth, Oceans, and Space, Climate Change Research Center, University of New Hampshire, Durham, 03824, New Hampshire, USA

The Earth and Sun Systems Laboratory, National Center of Atmospheric Research, Boulder, 80305, Colorado, USA

Department of Atmospheric Science & Chemistry, Plymouth State University, Plymouth, 03264, New Hampshire, USA

Department of Meteorology, Pennsylvania State University, University Park, 16802, Pennsylvania, USA

NASA Langley Research Center, Chemistry and Dynamics Branch, Hampton, 23681, Virginia, USA

05 01 2010

10 1 9 27

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Regional air quality simulations were conducted for summers 2001–2005 in the eastern US and subjected to extensive evaluation using various ground and airborne measurements. A brief climate evaluation focused on transport by comparing modeled dominant map types with ones from reanalysis. Reasonable agreement was found for their frequency of occurrence and distinctness of circulation patterns. The two most frequent map types from reanalysis were the Bermuda High (22%) and passage of a Canadian cold frontal over the northeastern US (20%). The model captured their frequency of occurrence at 25% and 18% respectively. The simulated five average distributions of 1-h ozone (O3) daily maxima using the Community Multiscale Air Quality (CMAQ) modeling system reproduced salient features in observations. This suggests that the ability of the regional climate model to depict transport processes accurately is critical for reasonable simulations of surface O3. Comparison of mean bias, root mean square error, and index of agreement for CMAQ summer surface 8-h O3 daily maxima and observations showed –0.6±14 nmol/mol, 14 nmol/mol, and 71% respectively. CMAQ performed best in moderately polluted conditions and less satisfactorily in highly polluted ones. This highlights the common problem of overestimating/underestimating lower/higher modeled O3 levels. Diagnostic analysis suggested that significant overestimation of inland nighttime low O3 mixing ratios may be attributed to underestimates of nitric oxide (NO) emissions at night. The absence of the second daily peak in simulations for the Appledore Island marine site possibly resulted from coarse grid resolution misrepresentation of land surface type. Comparison with shipboard measurements suggested that CMAQ has an inherent problem of underpredicting O3 levels in continental outflow. Modeled O3 vertical profiles exhibited a lack of structure indicating that key processes missing from CMAQ, such as lightning produced NO and stratospheric intrusions, are important for accurate upper tropospheric representations.

References 1

Byun, D. W. and Schere, K. L.: Review of the governing equations, computational algorithms, and other components of the Models-3 Community Multiscale Air Quality (CMAQ) Modeling System, Applied Mechanics Reviews, American Society of Mechanical Engineers, Fairfield, NJ, 59(2), 51–77, 2006.

Chai, T., Carmichael, G. R., Tang, Y., Sandu, A., Hardesty, M., Pilewskie, P., Whitlow, S., Browell, E. V., Avery, M. A., Nédélec, P., Merrill, J. T., Thompson, A. M., and Williams, E.: Four-dimensional data assimilation experiments with International Consortium for Atmospheric Research on Transport and Transformation ozone measurements, J. Geophys. Res., 112, D12S15, doi:10.1029/2006JD007763, 2007.

Changnon, S. A., Kunkel, K. E., and Reinke, B. C.: Impact and responses to the 1995 heat wave: a call to action, B. Am. Meteorol. Soc., 77, 1497–1506, 1996.

Chen, M., Pollard, D., and Barron, E. J.: Regional climate change in East Asia Simulated by an interactive soil-vegetation-atmosphere model, J. Climate., 17, 557–572, 2004.

Chen, M., Mao, H., and Talbot, R.: Changes in precipitation characteristics over North America for doubled CO2, Geophys. Res. Lett., 32, L19716, doi:10.1029/2005GL024535, 2005.

Cooper, O. R., Eckhardt, S., Crawford, J. H., et al.: Summertime buildup and decay of lightning NOx and aged thunderstorm outflow above North America, J. Geophys. Res., 114, D01101, doi:10.1029/2008JD010293, 2009.

Dawson, J. P., Racherla, P. N., Lynn, B. H., Adams, P. J., and Pandis, S. N.: Simulating present-day and future air quality as climate changes: Model evaluation, Atmos. Environ., 42(19), 4551–4566, 2008.

DeBell, L. J., Talbot, R. W., Dibb, J. E., Munger, J. W., Fischer, E. V., and Frolking, S. E.: A major regional air pollution event in the northeastern United States caused by extensive forest fires in Quebec, Canada, J. Geophys. Res., 109, D19305, doi:10.1029/2004JD004840, 2004a.

DeBell, L. J., Vozzella, M., Talbot, R. W., and Dibb, J. E.: Asian dust storm events of spring 2001 and associated pollutants observed in New England by the Atmospheric Investigation, Regional Modeling, Analysis and Prediction (AIRMAP) monitoring network, J. Geophys. Res., 109, D01304, doi:10.1029/2003JD003733, 2004b.

Dudhia, J.: Numerical study of convection observed during the winter monsoon experiment using a mesoscale two-dimensional model, J. Atmos. Sci., 46, 3077–3107, 1989.

Gery, M. W., Whitten, G. Z., Killus, J. P., and Dodge, M. C.: A photochemical kinetics mechanism for urban and regional scale computer modeling, J. Geophys. Res., 94, 12925–12956, 1989.

Grell, G. A., Kuo, Y. H., and Pasch, R.: Semi-prognostic tests of cumulus parameterization schemes in the middle latitudes, Mon. Weather Rev., 119, 5–31, 1991.

Griffin, R., Johnson, C., Talbot, R., Mao, H., Russo, R., Zhou, Y., and Sive, B.: Quantification of ozone formation metrics at Thompson Farm during NEAQS 2002, J. Geophys. Res., 109, D24302, doi:10.1029/2004JD005344, 2004.

Hanna, S. R., Briggs, G. A., and Hosker, R. P.: Handbook on Atmospheric Diffusion, Technol. Inf. Cent., US Dep. of Energy, Washington, DC, 1982.

Hegarty, J., Mao, H., and Talbot, R.: Synoptic influences on springtime tropospheric O3 and CO over the North American export region observed by TES, Atmos. Chem. Phys., 9, 3755–3776, 2009.

Hegarty, J., Mao, H., and Talbot, R.: Relationships between circulation patterns and surface ozone over the Northeastern United States, J. Geophys. Res., 112, D14306, doi:10.1029/2006JD008170, 2007.

Hogrefe, C., Biswas, J., Lynn, B., Civerolo, K., Ku, J.-Y., Rosenthal, J., Rosenzweig, C., Goldberg, R., and Kinney, P. L.: Simulating regional-scale ozone climatology over the eastern United States: model evaluation results, Atmos. Environ., 38, 2627–2638, 2004.

Hong, S.-Y. and Pan, H.-L.: Nonlocal boundary layer vertical diffusion in a medium-range forecast model, Mon. Weather Rev., 124(10), 2322–2339, 1996.

Huang, H.-C., Liang, X.-Z., Kunkel, K. E., Caughey, M., and Williams, A.: Seasonal simulation of tropospheric ozone over the Midwestern and Northeastern United States: An application of a coupled regional climate and air quality modeling system, J. Appl. Meteorol. Clim., 46, 945–960, 2007.

Hwang, G.-D., Mao, H., Talbot, R., et al.: Simulating the diurnal variation of mercury and ozone in New England, Atmos. Chem. Phys. Discuss., in preparation, 2009.

Johansson, C. and Janson, R. W.: Diurnal cycle of monoterpenes in a coniferous forest: Importance of atmospheric stability, surface exchange, and chemistry, J. Geophys. Res., 98, 5121–5133, 1993.

Liang, X.-Z., Li, L., Kunkel, K. E., Ting, M., Wang, J. X. L.: Regional climate model simulation of US precipitation during 1982–2002. Part I: annual cycle, J. Climate., 17(18), 3510–3529, 2004.

Lund, I. A.: Map-pattern classification by statistical methods, J. Appl. Meteorol., 2, 56–65, 1963.

Mao, H. and Talbot, R.: The role of meteorological processes in two New England ozone episodes during summer 2001, J. Geophys. Res., 109, D20305, doi:10.1029/2004JD004850, 2004.

Mao, H., Talbot, R., Troop, D., Johnson, R., Businger, S., and Thompson, A. M.: Smart balloon observations over the North Atlantic: O3 data analysis and modeling, J. Geophys. Res., 111, D23S56, doi:10.1029/2005JD006507, 2006.

Mena-Carrasco, M., Tang, Y., Carmichael, G. R., et al.: Improving regional ozone modeling through systematic evaluation of errors using the aircraft observations during the International Consortium for Atmospheric Research on Transport and Transformation, J. Geophys. Res., 112, D12S19, doi:10.1029/2006JD007762, 2007.

New England Regional Assessment Group, Preparing for a changing climate: The potential consequences of climate variability and change, New England Regional Overview, US Global Change Research Program, University of New Hampshire, 96~pp., 2001.

Otte, T. L.: The impact of nudging in the meteorological model for retrospective air quality simulations. Part I: Evaluation against national observational networks, J. Appl. Meteorol. Clim., 47, 1853–1867, 2008.

Pfister, G. G., Emmons, L. K., Hess, P. G., Lamarque, J.-F., Thompson, A. M., and Yorks, J. E.: Analysis of the Summer 2004 ozone budget over the United States using Intercontinental Transport Experiment Ozonesonde Network Study (IONS) observations and Model of Ozone and Related Tracers (MOZART-4) simulations, J. Geophys. Res., 113, D23306, doi:10.1029/2008JD010190, 2008.

Plummer, D. A., McConnell, J. C., Shepson, P. B., Hastie, D. R., and Niki, H.: Modeling of ozone formation at a rural site in southern Ontario, Atmos. Environ., 30(12), 2195–2217, 1996.

Pollard, D. and Thompson, S. L.: Use of land-surface-transfer scheme (LSX) in a global climate model: the response to doubling stomatal resistance, Global Planet. Change, 10, 129–161, 1995.

Pszenny, A. A. P., Fischer, E. V., Russo, R. S., Sive, B. C., and Varner, R. K.: Estimates of Cl atom concentrations and hydrocarbon kinetic reactivity in surface air at Appledore Island, Maine (USA), during International Consortium for Atmospheric Research on Transport and Transformation/Chemistry of Halogens at the Isles of Shoals, J. Geophys. Res., 112, D10S13, doi:10.1029/2006JD007725, 2007.

Pierce, R. B., Schaack, T., Al-Saadi, J. A., et al.: Chemical data assimilation estimates of continental US ozone and nitrogen budgets during the Intercontinental Chemical Transport Experiment-North America, J. Geophys. Res., 112, D12S21, doi:10.1029/2006JD007722, 2007.

Seinfeld, J. H. and Pandis, S. N.: Atmospheric Chemistry and Physics: From Air Pollution to Climate Change, John Wiley, New York, 1998.

Stull, R. B.: An Introduction to Boundary Layer Meteorology, 499–541, Kluwer Acad., Norwell, Mass., 1988.

Talbot, R., Mao, H., and Sive, B.: Diurnal characteristics of surface-level O3 and other important trace gases in New England, J. Geophys. Res., 110, D09307, doi:10.1029/2004JD005449, 2005.

Tang, Y., Lee, P., Tsidulko, M., et al.: The impact of chemical lateral boundary conditions on CMAQ predictions of tropospheric ozone over the continental United States, Environ. Fluid Mech., 9, 43–58, doi:10.1007/s10652-008-9092-5, 2009.

Tarasick, D. W., Moran, M. D., Thompson, A. M., et al.: Comparison of Canadian air quality forecast models with tropospheric ozone profile measurements above midlatitude North America during the IONS/ICARTT campaign: Evidence for stratospheric input, J. Geophys. Res., 112, D12S22, doi:10.1029/2006JD007782, 2007.

Thompson, A. M., Stone, J. B., Witte, J. C., et al.: Intercontinental Chemical Transport Experiment Ozonesonde Network Study (IONS, 2004): 1. Summertime UT/LS (Upper Troposphere/Lower Stratosphere) ozone over northeastern North America, J. Geophys. Res., 112, D12S12, doi:10.1029/2006JD007441, 2007a.

Thompson, A. M., Stone, J. B., Witte, J. C., et al.: Intercontinental Chemical Transport Experiment Ozonesonde Network Study (IONS) 2004: 2. Tropospheric ozone budgets and variability over northeastern North America, J. Geophys. Res., 112, D12S13, doi:10.1029/2006JD007670., 2007b.

Van Loon, M., Vautard, R., Schaap, M., et al.: Evaluation of long-term ozone simulations from seven regional air quality models and their ensemble, Atmos. Environ., 41, 2083–2097, 2007.

Vincent, L. A., Wijngaarden, W., and Hopkinson, R.: Surface Temperature and Humidity Trends in Canada for 1953–2005, J. Climate, 20, 5100–5113, 2007.

Vivanco, M. G., Palomino, I., Vautard, R., Bessagnet, B., Martín, F., Menut, L., and Jiménez, S.: Multi-year assessment of photochemical air quality simulation over Spain, Environ. Model. Software, 24, 63–73, 2009.

Xiao, Y., Mao, H., and Talbot, R.: Interannual variability of winter-spring ozone in the Northeastern US, Atmos. Chem. Phys. Discuss., in preparation, 2009.

Yorks, J. E., Thompson, A. M., Joseph, E., and Miller, S. K.: The variability of free tropospheric ozone over Beltsville, Maryland (39N, 77W) in the summers 2004–2007, Atmos. Environ., 43(11), 1827–1838, 2009.

Yu, S., Mathur, R., Schere, K., Kang, D., Pleim, J., Otte, T. L.: A detailed evaluation of the Eta-CMAQ forecast model performance for O3, its related precursors, and meteorological parameters during the 2004 ICARTT study, J. Geophys. Res., 112, D12S14, doi:10.1029/2006JD007715, 2007.

Yu, Y., Sokhi, R. S., Kitwiroon, N., Middleton, D. R., and Fisher, B.: Performance characteristics of MM5-SMOKE-CMAQ for a summer photochemical episode in southeast England, UK, Atmos. Environ., 42, 4870–4883, 2008.

Zhang, D. and Anthes, R. A.: A high-resolution model of the planetary boundary layer – Sensitivity tests and comparisons with SESAME-79 data, J. Appl. Met. Corol., 21, 1594–1609, 1982.

Zhang, Y., Liu, P., Queen, A., Misenis, C., Pun, B., Seigneur, C., and Wu, S.-Y.: A comprehensive performance evaluation of MM5-CMAQ for the summer 1999 Southern Oxidants Study episode – Part II: Gas and aerosol predictions, Atmos. Environ., 40, 4839–4855, 2006a.

Zhang, Y., Liu, P., Pun, B., and Seigneur, C.: A comprehensive performance evaluation of MM5-CMAQ for the summer 1999 Southern Oxidants Study episode – Part III: Diagnostic and mechanistic evaluations, Atmos. Environ., 40, 4856–4873, 2006b.