Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.
 
 
i

Superseded

This Document Has Been Replaced By:

i

Retired

This Document Has Been Retired

i

Up-to-date Information

This is the latest update:

Why do models overestimate surface ozone in the Southeast United States?
  • Published Date:

    2016

  • Source:
    Atmospheric Chemistry and Physics, 16(21), 13561-13577.
Filetype[PDF-7.61 MB]


This document cannot be previewed automatically as it exceeds 5 MB
Please click the thumbnail image to view the document.
Why do models overestimate surface ozone in the Southeast United States?
Details:
  • Personal Author:
  • Description:
    Ozone pollution in the Southeast US involves complex chemistry driven by emissions of anthropogenic nitrogen oxide radicals (NOx = NO + NO2) and biogenic isoprene. Model estimates of surface ozone concentrations tend to be biased high in the region and this is of concern for designing effective emission control strategies to meet air quality standards. We use detailed chemical observations from the SEAC(4)RS aircraft campaign in August and September 2013, interpreted with the GEOS-Chem chemical transport model at 0.25 degrees x 0.3125 degrees horizontal resolution, to better understand the factors controlling surface ozone in the Southeast US. We find that the National Emission Inventory (NEI) for NOx from the US Environmental Protection Agency (EPA) is too high. This finding is based on SEAC(4)RS observations of NOx and its oxidation products, surface network observations of nitrate wet deposition fluxes, and OMI satellite observations of tropospheric NO2 columns. Our results indicate that NEI NOx emissions from mobile and industrial sources must be reduced by 30-60 %, dependent on the assumption of the contribution by soil NOx emissions. Upper-tropospheric NO2 from lightning makes a large contribution to satellite observations of tropospheric NO2 that must be accounted for when using these data to estimate surface NOx emissions. We find that only half of isoprene oxidation proceeds by the high-NOx pathway to produce ozone; this fraction is only moderately sensitive to changes in NOx emissions because isoprene and NOx emissions are spatially segregated. GEOS- Chem with reduced NOx emissions provides an unbiased simulation of ozone observations from the aircraft and reproduces the observed ozone production efficiency in the boundary layer as derived from a regression of ozone and NOx oxidation products. However, the model is still biased high by 6 +/- 14 ppb relative to observed surface ozone in the Southeast US. Ozonesondes launched during midday hours show a 7 ppb ozone decrease from 1.5 km to the surface that GEOS- Chem does not capture. This bias may reflect a combination of excessive vertical mixing and net ozone production in the model boundary layer.
  • DOI:
    http://dx.doi.org/10.5194/acp-16-13561-2016
  • Document Type:
    Journal Article
  • Collection(s):
    NOAA Cooperative Institutes
    Office of Oceanic and Atmospheric Research (OAR)
  • Main Document Checksum:
  • File Type:
  • Supporting Files:
    No Additional Files
    1. Filetype[PDF - 8.33 MB]
      Personal Author:
      Wells, K. C.; Millet, D. B.; Bousserez, N.; Henze, D. K.; Griffis, T. J.; Chaliyakunnel, S.; Dlugokencky, E. J.; Saikawa, E.; Xiang, G.; Prinn, R. G.; O'Doherty, S.; Young, D.; Weiss, R. F.; Dutton, G. S.; Elkins, J. W.; Krummel, P. B.; Langenfelds, R.; Steele, L. P.;
      Published Date:
      2018
      Source:
      Atmospheric Chemistry and Physics, 18(2), 735-756.
      Description:
      We present top-down constraints on global monthly N2O emissions for 2011 from a multi-inversion approach and an ensemble of surface observations. The inversions employ the GEOS-Chem adjoint and an array of aggregation strategies to test how well curr...
      File Type:
      Filetype[PDF - 8.33 MB]
    2. Filetype[PDF - 1.87 MB]
      Personal Author:
      Raczka, B.; Biraud, S. C.; Ehleringer, J. R.; Lai, C. T.; Miller, J. B.; Pataki, D. E.; Saleska, S. R.; Torn, M. S.; Vaughn, B. H.; Wehr, R.; Bowling, D. R.;
      Published Date:
      2017
      Source:
      Journal of Geophysical Research-Biogeosciences, 122(8), 1969-1987.
      Description:
      The seasonal pattern of the carbon isotope content (delta C-13) of atmospheric CO2 depends on local and nonlocal land-atmosphere exchange and atmospheric transport. Previous studies suggested that the delta C-13 of the net land-atmosphere CO2 flux (d...
      File Type:
      Filetype[PDF - 1.87 MB]
    3. Filetype[PDF - 11.77 MB]
      Personal Author:
      Dieng, D.; Laux, P.; Smiatek, G.; Heinzeller, D.; Bliefernicht, J.; Sarr, A.; Gaye, A. T.; Kunstmann, H.;
      Published Date:
      2018
      Source:
      Journal of Geophysical Research-Atmospheres, 123(15), 7950-7973.
      Description:
      In this study, we analyze a set of agroclimatological indices across West Africa and assess their projected changes for the future. We apply the regional climate model CCLM (COnsortium for Small-scale MOdelling in CLimate Mode) with a high spatial re...
      File Type:
      Filetype[PDF - 11.77 MB]
    4. Filetype[PDF - 1.74 MB]
      Personal Author:
      Kenagy, H. S.; Sparks, T. L.; Ebben, C. J.; Wooldrige, P. J.; Lopez-Hilfiker, F. D.; Lee, B. H.; Thornton, J. A.; McDuffie, E. E.; Fibiger, D. L.; Brown, S. S.; Montzka, D. D.; Weinheimer, A. J.; Schroder, J. C.; Campuzano-Jost, P.; Day, D. A.; Jimenez, J. L.; Dibb, J. E.; Campos, T.; Shah, V.; Jaegle, L.; Cohen, R. C.;
      Published Date:
      2018
      Source:
      Journal of Geophysical Research-Atmospheres, 123(17), 9813-9827.
      Description:
      Although urban NOx lifetimes have been examined extensively during summertime conditions, wintertime NOx chemistry has been comparatively less studied. We use measurements of NOx and its oxidation products from the aircraft-based WINTER (Wintertime I...
      File Type:
      Filetype[PDF - 1.74 MB]
    5. Filetype[PDF - 3.46 MB]
      Personal Author:
      Jarvinen, E.; Ignatius, K.; Nichman, L.; Kristensen, T. B.; Fuchs, C.; Hoyle, C. R.; Hoppel, N.; Corbin, J. C.; Craven, J.; Duplissy, J.; Ehrhart, S.; El Haddad, I.; Frege, C.; Gordon, H.; Jokinen, T.; Kallinger, P.; Kirkby, J.; Kiselev, A.; Naumann, K. H.; Petaja, T.; Pinterich, T.; Prevot, A. S. H.; Saathoff, H.; Schiebel, T.; Sengupta, K.; Simon, M.; Slowik, J. G.; Trostl, J.; Virtanen, A.; Vochezer, P.; Vogt, S.; Wagner, A. C.; Wagner, R.; Williamson, C.; Winkler, P. M.; Yan, C.; Baltensperger, U.; Donahue, N. M.; Flagan, R. C.; Gallagher, M.; Hansel, A.; Kulmala, M.; Stratmann, F.; Worsnop, D. R.; Mohler, O.; Leisner, T.; Schnaiter, M.;
      Published Date:
      2016
      Source:
      Atmospheric Chemistry and Physics, 16(7), 4423-4438.
      Description:
      Under certain conditions, secondary organic aerosol (SOA) particles can exist in the atmosphere in an amorphous solid or semi-solid state. To determine their relevance to processes such as ice nucleation or chemistry occurring within particles requir...
      File Type:
      Filetype[PDF - 3.46 MB]
    6. Filetype[PDF - 6.69 MB]
      Personal Author:
      Butler, R.; Palmer, P. I.; Feng, L.; Andrews, S. J.; Atlas, E. L.; Carpenter, L. J.; Donets, V.; Harris, N. R. P.; Montzka, S. A.; Pan, L. L.; Salawitch, R. J.; Schauffler, S. M.;
      Published Date:
      2018
      Source:
      Atmospheric Chemistry and Physics, 18(17), 13135-13153.
      Description:
      We use the GEOS-Chem global 3-D atmospheric chemistry transport model to interpret atmospheric observations of bromoform (CHBr3) and dibromomethane (CH2Br2) collected during the CAST and CONTRAST aircraft measurement campaigns over the western Pacifi...
      File Type:
      Filetype[PDF - 6.69 MB]
    7. Filetype[PDF - 6.51 MB]
      Personal Author:
      Fried, A.; Barth, M. C.; Bela, M.; Weibring, P.; Richter, D.; Walega, J.; Li, Y.; Pickering, K.; Apel, E.; Hornbrook, R.; Hills, A.; Riemer, D. D.; Blake, N.; Blake, D. R.; Schroeder, J. R.; Luo, Z. J.; Crawford, J. H.; Olson, J.; Rutledge, S.; Betten, D.; Biggerstaff, M. I.; Diskin, G. S.; Sachse, G.; Campos, T.; Flocke, F.; Weinheimer, A.; Cantrell, C.; Pollack, I.; Peischl, J.; Froyd, K.; Wisthaler, A.; Mikoviny, T.; Woods, S.;
      Published Date:
      2016
      Source:
      Journal of Geophysical Research-Atmospheres, 121(12), 7430-7460.
      Description:
      We have developed semi-independent methods for determining CH2O scavenging efficiencies (SEs) during strong midlatitude convection over the western, south-central Great Plains, and southeastern regions of the United States during the 2012 Deep Convec...
      File Type:
      Filetype[PDF - 6.51 MB]
    8. Filetype[PDF - 3.54 MB]
      Personal Author:
      Janssens-Maenhout, G.; Crippa, M.; Guizzardi, D.; Dentener, F.; Muntean, M.; Pouliot, G.; Keating, T.; Zhang, Q.; Kurokawa, J.; Wankmuller, R.; van der Gon, H. D.; Kuenen, J. J. P.; Klimont, Z.; Frost, G.; Darras, S.; Koffi, B.; Li, M.;
      Published Date:
      2015
      Source:
      Atmospheric Chemistry and Physics, 15(19), 11411-11432.
      Description:
      The mandate of the Task Force Hemispheric Transport of Air Pollution (TF HTAP) under the Convention on Long-Range Transboundary Air Pollution (CLRTAP) is to improve the scientific understanding of the intercontinental air pollution transport, to quan...
      File Type:
      Filetype[PDF - 3.54 MB]
    9. Filetype[PDF - 7.20 MB]
      Personal Author:
      Brown, S. S.; Dube, W. P.; Tham, Y. J.; Zha, Q. Z.; Xue, L. K.; Poon, S.; Wang, Z.; Blake, D. R.; Tsui, W.; Parrish, D. D.; Wang, T.;
      Published Date:
      2016
      Source:
      Journal of Geophysical Research-Atmospheres, 121(5), 2457-2475.
      Description:
      Nighttime reactions of nitrogen oxides influence ozone, volatile organic compounds, and aerosol and are thus important to the understanding of regional air quality. Despite large emissions and rapid recent growth of nitrogen oxide concentrations, the...
      File Type:
      Filetype[PDF - 7.20 MB]
    10. Filetype[PDF - 7.02 MB]
      Personal Author:
      Kim, J.; Johnson, L. E.; Cifelli, R.; Choi, J.; Chandrasekar, V.;
      Published Date:
      2018
      Source:
      Water, 10(7), 21.
      Description:
      Soil moisture retention (SMR) capacity plays a key role in estimating the direct runoff when a multi-pulse storm event occurs. It is very important to know how much SMR will be recovered during the intervals of no rain of a multi-pulse storm. This st...
      File Type:
      Filetype[PDF - 7.02 MB]
    11. Filetype[PDF - 1.81 MB]
      Personal Author:
      Fairall, C. W.; Matrosov, S. Y.; Williams, C. R.; Walsh, E. J.;
      Published Date:
      2018
      Source:
      Journal of Atmospheric and Oceanic Technology, 35(3), 593-608.
      Description:
      The NOAA W-band radar was deployed on a P-3 aircraft during a study of storm fronts off the U.S. West Coast in 2015 in the second CalWater (CalWater-2) field program. This paper presents an analysis of measured equivalent radar reflectivity factor Z(...
      File Type:
      Filetype[PDF - 1.81 MB]
    12. Filetype[PDF - 5.19 MB]
      Personal Author:
      Mahish, M.; Jefferson, A.; Collins, D. R.;
      Published Date:
      2018
      Source:
      Atmosphere, 9(2), 18.
      Description:
      A 4-year record of aerosol size and hygroscopic growth factor distributions measured at the Department of Energy's Southern Great Plains (SGP) site in Oklahoma, U.S. were used to estimate supersaturation (S)-dependent cloud condensation nuclei concen...
      File Type:
      Filetype[PDF - 5.19 MB]
    13. Filetype[PDF - 4.56 MB]
      Personal Author:
      Mahoney, K.; Swales, D.; Mueller, M. J.; Alexander, M.; Hughes, M.; Malloy, K.;
      Published Date:
      2018
      Source:
      Journal of Climate, 31(16), 6281-6297.
      Description:
      Atmospheric rivers (ARs) are well-known producers of precipitation along the U.S. West Coast. Depending on their intensity, orientation, and location of landfall, some ARs penetrate inland and cause heavy rainfall and flooding hundreds of miles from ...
      File Type:
      Filetype[PDF - 4.56 MB]
    14. Filetype[PDF - 1.47 MB]
      Personal Author:
      Dimdore-Miles, O. B.; Palmer, P. I.; Bruhwiler, L. P.;
      Published Date:
      2018
      Source:
      Atmospheric Chemistry and Physics, 18(24), 17895-17907.
      Description:
      We consider the utility of the annual inter-polar difference (IPD) as a metric for changes in Arctic emissions of methane (CH4). The IPD has been previously defined as the difference between weighted annual means of CH4 mole fraction data collected a...
      File Type:
      Filetype[PDF - 1.47 MB]
    15. Filetype[PDF - 1.26 MB]
      Personal Author:
      Byju, P.; Dommenget, D.; Alexander, M. A.;
      Published Date:
      2018
      Source:
      Geophysical Research Letters, 45(15), 7683-7691.
      Description:
      Sea surface temperature anomalies (SSTA) in portions of the extratropics are known to recur from one winter to the next without persisting through the intervening summer. Previous studies identified only a limited number of midlatitude regions where ...
      File Type:
      Filetype[PDF - 1.26 MB]
    16. Filetype[PDF - 1.13 MB]
      Personal Author:
      Richardson, K.; Asmutis-Silvia, R.; Drinkwin, J.; Gilardi, K. V. K.; Giskes, I.; Jones, G.; O'Brien, K.; Pragnell-Raasch, H.; Ludwig, L.; Antonelis, K.; Barco, S.; Henry, A.; Knowlton, A.; Landry, S.; Mattila, D.; MacDonald, K.; Moore, M.; Morgan, J.; Robbins, J.; van der Hoop, J.; Hogan, E.;
      Published Date:
      2019
      Source:
      Marine Pollution Bulletin, 138, 222-229.
      Description:
      Abandoned, lost or discarded fishing gear (ALDFG) comprises a significant amount of global marine debris, with diverse impacts to marine environments, wildlife, and the fishing industry. Building evidence on ALDFG is critical to holistically understa...
      File Type:
      Filetype[PDF - 1.13 MB]
    17. Filetype[PDF - 2.34 MB]
      Personal Author:
      Smith, M.; Stammerjohn, S.; Persson, O.; Rainville, L.; Liu, G. Q.; Perrie, W.; Robertson, R.; Jackson, J.; Thomson, J.;
      Published Date:
      2018
      Source:
      Journal of Geophysical Research-Oceans, 123(5), 3164-3185.
      Description:
      High-resolution measurements of the air-ice-ocean system during an October 2015 event in the Beaufort Sea demonstrate how stored ocean heat can be released to temporarily reverse seasonal ice advance. Strong on-ice winds over a vast fetch caused mixi...
      File Type:
      Filetype[PDF - 2.34 MB]
    18. Filetype[PDF - 724.45 KB]
      Personal Author:
      Chakraborty, A.; Ervens, B.; Gupta, T.; Tripathi, S. N.;
      Published Date:
      2016
      Source:
      Journal of Geophysical Research-Atmospheres, 121(8), 4317-4332.
      Description:
      Size-resolved fog water samples were collected in two consecutive winters at Kanpur, a heavily polluted urban area of India. Samples were analyzed by an aerosol mass spectrometer after drying and directly in other instruments. Residues of fine fog dr...
      File Type:
      Filetype[PDF - 724.45 KB]
    19. Filetype[PDF - 4.19 MB]
      Personal Author:
      Kim, P. S.; Jacob, D. J.; Fisher, J. A.; Travis, K.; Yu, K.; Zhu, L.; Yantosca, R. M.; Sulprizio, M. P.; Jimenez, J. L.; Campuzano-Jost, P.; Froyd, K. D.; Liao, J.; Hair, J. W.; Fenn, M. A.; Butler, C. F.; Wagner, N. L.; Gordon, T. D.; Welti, A.; Wennberg, P. O.; Crounse, J. D.; St. Clair, J. M.; Teng, A. P.; Millet, D. B.; Schwarz, J. P.; Markovic, M. Z.; Perring, A. E.;
      Published Date:
      2015
      Source:
      Atmos. Chem. Phys., 15(18), 10411-10433.
      File Type:
      Filetype[PDF - 4.19 MB]
    20. Filetype[PDF - 5.27 MB]
      Personal Author:
      Heiblum, R. H.; Altaratz, O.; Koren, I.; Feingold, G.; Kostinski, A. B.; Khain, A. P.; Ovchinnikov, M.; Fredj, E.; Dagan, G.; Pinto, L.; Yaish, R.; Chen, Q.;
      Published Date:
      2016
      Source:
      Journal of Geophysical Research-Atmospheres, 121(11), 6336-6355.
      Description:
      We study the evolution of warm convective cloud fields using large eddy simulations of continental and trade cumulus. Individual clouds are tracked a posteriori from formation to dissipation using a 3-D cloud-tracking algorithm, and results are prese...
      File Type:
      Filetype[PDF - 5.27 MB]

You May Also Like:

  1. Filetype[PDF - 5.90 MB]
    Personal Author:
    Jaegle, L.; Shah, V.; Thornton, J. A.; Lopez-Hilfiker, F. D.; Lee, B. H.; McDuffie, E. E.; Fibiger, D.; Brown, S. S.; Veres, P.; Sparks, T. L.; Ebben, C. J.; Wooldridge, P. J.; Kenagy, H. S.; Cohen, R. C.; Weinheimer, A. J.; Campos, T. L.; Montzka, D. D.; Digangi, J. P.; Wolfe, G. M.; Hanisco, T.; Schroder, J. C.; Campuzano-Jost, P.; Day, D. A.; Jimenez, J. L.; Sullivan, A. P.; Guo, H.; Weber, R. J.;
    Published Date:
    2018
    Source:
    Journal of Geophysical Research-Atmospheres, 123(21), 12368-12393.
    Description:
    We examine the distribution and fate of nitrogen oxides (NOx) in the lower troposphere over the Northeast United States (NE US) using aircraft observations from the Wintertime INvestigation of Transport, Emissions, and Reactivity (WINTER) campaign in...
    File Type:
    Filetype[PDF - 5.90 MB]