EMEP MSC-W modelled air concentrations and depositions

The annual EMEP/MSC-W model results of air concentrations and depositions are available as gridded data (on the EMEP grid) and as national totals from Table 1 for the years 1980, 1985, 1990 and for all years from 1995 to 2014.

EMEP/MSC-W model calculations are changing with time, not only because of EMEP MSC-W model updates, but also due to modifications of the input data (e.g. revised emission data and meteorology).

In broad terms, two types of model results can be distinguished:

Type 1) Model results that have been officially reported in the annual EMEP status reports, based on model simulations using the best available input data (emissions, meteorology, etc.) at the time of reporting.

Type 2) Model results from later re-calculations, using updated input data which were not available at the time of reporting (e.g. revised and improved emission data for the past, meteorological data on finer resolution, etc.)

Model results of Type 1 are labeled by the year they are calculated for (e.g. '2000', '2008', etc.), while model results of Type 2 are further labeled by the year when the re-calculation was made. E.g. '2008 v2015' refers to model results for the year 2008, which were obtained in 2015 using the best data available in 2015. Model results of Type 2 should be preferred when doing trend analyses.

Instructions on how to retrieve the data from Table 1 can be found in the User Guide. Definitions and acronyms for the different components can be found here. Information about references for the data is found below Table 1.

Please note that the model run for 2014 in EMEP Status Report 1/2015 is performed with 2013 emissions, as emission data for 2014 are not yet available.

For the first time annual averaged model results from a status run for 2013 are available also in the new EMEP 0.1º x 0.1º longitude-latitude grid. The fine scale model data can not yet be retrieved using the selection boxes below, but downloadable as a netCDf file here.

Table 1: Data selection

Countries / Areas
Years
Air Concentrations
Main Pollutants
PM
Depositions
Main Pollutants
Type and Format


Model versions

  • 2013 and 2014 data: EMEP/MSC-W model version rv4.7
  • 2012 data EMEP/MSC-W model version rv4.5
  • 2011 data and 1990,2000-2010 recalculated data: EMEP/MSC-W model version rv4.4
  • 2010 data: EMEP/MSC-W model version rv4
  • 2009 data: EMEP/MSC-W model v.2011-06
  • 2008 data: Unified EMEP model version rv3.6
    The main differences between versions rv3.1 and rv3.6 are summarized in Chapter 9 in the EMEP Status Report 1/2010
  • 2007 data: Unified EMEP model version rv3.1 (This version is basically the same as rv3.0.7).
  • 2006 data: Unified EMEP model version rv3.0.7
    The routine for calculation of night time production of HNO3 has been updated when an error in the routine was found. The result was a decrease in the reaction rate of about a factor of 4. The species most affected by the upgrade were nitrogen dioxide, nitric acid and nitrate and ammonium aerosols. To learn more about the implications of the upgrade, please check Section 3.3 in the EMEP Status Report 1/2008.
  • 2005 data: Unified EMEP model version rv2.8
  • 2004 and 1990,1995-2000 recalculated data(rep2006): Unified EMEP model version rv2.5
  • 1980,1985 recalculated data(rep2004): Unified EMEP model version rv2.1 (This version is basically the same as rv2.0).

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Meteorology

  • 2014 data: ECMWF IFS Cycle 40r1
  • 2012, 2013 data: ECMWF-IFS Cycle 38r2
  • 2011 - 2009 and 1990,2000-2010 recalculated data: ECMWF-IFS Cycle 36r1
  • 2008 data: ECMWF-IFS Cycle 29r2
  • 2007 data: HIRLAM version 7.1.3
  • 1980, 1985, 1990, 1995 - 2006 data: PARLAM-PS (parallel version of HIRLAM model v.2)

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Emissions

The emissions used for the yearly model calculations have been derived from each years official data submissions to UNECE CLRTAP and are documented in the appendix of the EMEP Status Reports listed below.

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References

  • Trends of Air-concentrations and depositions:
    Transboundary particulate matter, photo-oxidants, acidifying and eutrophying components,
    EMEP Status Report 1/2015, ISSN 1504-6109 (print), ISSN 1504-6192 (online)
    Transboundary particulate matter, photo-oxidants, acidifying and eutrophying components, EMEP Status Report 1/2014, ISSN 1504-6109 (print), ISSN 1504-6192 (online)
    Transboundary Acidification, Eutrophication and Ground Level Ozone in Europe in 2011, EMEP Status Report 1/2013, ISSN 1504-6109 (print), ISSN 1504-6192 (online)
    Transboundary Acidification, Eutrophication and Ground Level Ozone in Europe in 2010, EMEP Status Report 1/2012, ISSN 1504-6109 (print), ISSN 1504-6192 (online)
    Transboundary Acidification, Eutrophication and Ground Level Ozone in Europe in 2009, EMEP Status Report 1/2011, ISSN 1504-6109 (print), ISSN 1504-6192 (online)
    Transboundary Acidification, Eutrophication and Ground Level Ozone in Europe in 2008, EMEP Status Report 1/2010, ISSN 1504-6109 (print), ISSN 1504-6192 (online)
    Transboundary Acidification, Eutrophication and Ground Level Ozone in Europe in 2007, EMEP Status Report 1/2009, ISSN 1504-6109 (print), ISSN 1504-6192 (online)
    Transboundary Acidification, Eutrophication and Ground Level Ozone in Europe in 2006, EMEP Status Report 1/2008, ISSN 1504-6109 (print), ISSN 1504-6192 (online)
    Transboundary Acidification, Eutrophication and Ground Level Ozone in Europe in 2005, EMEP Status Report 1/2007, ISSN 1504-6109 (print), ISSN 1504-6192 (online)
    Transboundary Acidification, Eutrophication and Ground Level Ozone in Europe since 1990 to 2004,
    EMEP Status Report 1/2006, ISSN 1504-6109 (print), ISSN 1504-6192 (online)
    Transboundary Acidification, Eutrophication and Ground Level Ozone in Europe in 2003, EMEP Status Report 1/2005, ISSN 0806-4520
    Transboundary Acidification, Eutrophication and Ground Level Ozone in Europe,
    EMEP Status Report 1/2004, ISSN 0806-4520

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emep.mscw@met.no