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Historical (1850-2000) gridded anthropogenic and biomass burning emissions of reactive gases and aerosols: methodology and application

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2010
EGU Katlenburg-Lindau

Atmospheric chemistry and physics 10, 7017 - 7039 () [10.5194/acp-10-7017-2010]

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Abstract: We present and discuss a new dataset of gridded emissions covering the historical period (1850-2000) in decadal increments at a horizontal resolution of 0.5 degrees in latitude and longitude. The primary purpose of this inventory is to provide consistent gridded emissions of reactive gases and aerosols for use in chemistry model simulations needed by climate models for the Climate Model Intercomparison Program #5 (CMIP5) in support of the Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment report (AR5). Our best estimate for the year 2000 inventory represents a combination of existing regional and global inventories to capture the best information available at this point; 40 regions and 12 sectors are used to combine the various sources. The historical reconstruction of each emitted compound, for each region and sector, is then forced to agree with our 2000 estimate, ensuring continuity between past and 2000 emissions. Simulations from two chemistry-climate models are used to test the ability of the emission dataset described here to capture long-term changes in atmospheric ozone, carbon monoxide and aerosol distributions. The simulated long-term change in the Northern mid-latitudes surface and mid-troposphere ozone is not quite as rapid as observed. However, stations outside this latitude band show much better agreement in both present-day and long-term trend. The model simulations indicate that the concentration of carbon monoxide is underestimated at the Mace Head station; however, the long-term trend over the limited observational period seems to be reasonably well captured. The simulated sulfate and black carbon deposition over Greenland is in very good agreement with the ice-core observations spanning the simulation period. Finally, aerosol optical depth and additional aerosol diagnostics are shown to be in good agreement with previously published estimates and observations.

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Note: The authors would like to thank the ACCENT European Network, which provided funding for meetings to develop the emissions dataset. Suvi Monni, Lorenzo Orlandini and Valerio Pagliari are acknowledged for providing support in the gridding of emissions and making available official reported data from EMEP and UNFCCC inventories. O. Buhaug and J. Corbett provided helpful comments on ship emissions. Z. K. would like to acknowledge the support received from the European Integrated project on Aerosol Cloud Climate and Air Quality Interactions (EUCAARI), a project within EU's Sixth Framework Program. A. H. acknowledges funding from the European Union's CITYZEN project. Surface data was obtained from the World Data Centre for Greenhouse gases, maintained by the Japan Meteorological Agency in cooperation with the World Meteorological Organization. We would like to thank D. Parrish and H.-E. Scheel for providing access to their ozone datasets. AERONET data was kindly made available by the AERONET investigators and used for this study. The National Center for Atmospheric Research is operated by the University Corporation for Atmospheric Research under sponsorship of the National Science Foundation. Any opinions, findings and conclusions or recommendations expressed in the publication are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

Research Program(s):
  1. Atmosphäre und Klima (P23)

Appears in the scientific report 2010
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Creative Commons Attribution CC BY 3.0 ; OpenAccess
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