Norwegian Meteorological Institute met.no

EMEP data on the webSR Tables

National reports

Michael Gauss

Norwegian Meteorological Institute met.no

Outline

• What kinds of EMEP MSC-W model output can befound on emep.int?

• Focus on source-receptor matrices (SR tables)– Where to find the data?– How are these data calculated and how to interpret them?

• Focus on national reports (country notes)– Useful country-specific information from EMEP MSC-W for

the parties of CLRTAP

Norwegian Meteorological Institute met.no

http://emep.int

Norwegian Meteorological Institute met.no

Norwegian Meteorological Institute met.no

Norwegian Meteorological Institute met.no

Concentrations and depositions from the EMEP MSC-W model

Type 1) Model results that have been officially reported, based on model simulations using the best available input data 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

Norwegian Meteorological Institute met.no

The data selection table

Norwegian Meteorological Institute met.no

The SR tablesPublished in the appendices of the EMEP status reports every year

Norwegian Meteorological Institute met.no

Fundamental questions of LRTAP

1. Where do the pollutants in a given country or region come from?

2. Where do the pollutants emitted by a country or region end up?

Norwegian Meteorological Institute met.no

• The source-receptor (SR) relationships give the change in air concentrations or depositions resulting from a change in emissions from an emitter country

• For each of the ≈50 countries, reductions in six different pollutants are calculated separately– 15% reduction in emissions of SOx, NOx, NH3,

NMVOC, PPMfine, or PPMcoarse.

EMEP MSC-W model runs

Norwegian Meteorological Institute met.no

Deposition tables

• Total contribution from one country to another• Calculated by adding the differences due to a

15% reduction in all emissions from one country, multiplied by a factor of 100%/15%

Norwegian Meteorological Institute met.no

Concentration and indicator tables

• The effects of a 15% reduction in pollutant emissions are given directly

• They should be interpreted as a possible result of emission reduction measures

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‘indigenous’ pollution

An example from the EMEP status report 2012

. . .

...

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. . .

...

…a closer look at the bottom of this table

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. . .

...…and the far right

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The Country notes

Norwegian Meteorological Institute met.no

Example: The United Kingdom 2010

Spatial distribution of NMVOC emissions from the UK in 2010. Gg.

Emission trends in the UK, various species (2012 data from CEIP); and emissions projected for 2020 (revised Gothenburg protocol). Gg.

Norwegian Meteorological Institute met.no

Sulphur deposition from UK

Contribution of emissions from the UK to deposition of oxidised sulphur in the EMEP domain. Unit: mg(S)/m2.

The six main receptor areas where oxidised sulphur from the UK is deposited. Unit: %.

Norwegian Meteorological Institute met.no

Transboundary contribution

Fraction of transboundary contribution to total sulphur deposition in the UK (%).

Same for PPM2.5

Norwegian Meteorological Institute met.no

Example of an air quality indicator

The six most important contributors to SOMO35 in the UK related to emissions of NOx (left) and NMVOC (right). Unit: %.

2009

Norwegian Meteorological Institute met.no

Observations!

Frequency analysis of ozone in the UK at the stations that reported ozonefor 2010 (Model, Observations)

ppbv

Norwegian Meteorological Institute met.no

Conclusions• emep.int has been there for a long time and

has a lot to offer (young generation: please have a look and browse!)

• «It’s so 2000» : The website is currently restructured to make it more appealing to new users (and even more functional to the old)

• Please note that this presentation was onlyabout EMEP MSC-W model results– SR tables are among the key model output from EMEP– country notes are provided to all parties of the Convention

(except North America)