Department of Geosciences

Comparison of regional emission inventories for CityZen

1st annual meeting, Vienna, September 28-29, 2009Presenter: Øivind HodnebrogParticipants: Frode Stordal, Øystein Hov,

Ivar S.A. IsaksenSection for Meteorology and oceanographyDepartment of GeosciencesUniversity of Oslo

Department of Geosciences

Emission inventories

• RETRO– 0.5° x 0.5° resolution, global coverage

• INERIS/EMEP– 0.1° x 0.1° resolution, cover Europe

• EMEP/TNO– 0.1° x 0.1° resolution, cover Europe

• NAEI– UK National Atmospheric Emissions Inventory (www.naei.org.uk)– 1 km x 1 km resolution, cover United Kingdom

• LANUV– Landesamt für Natur, Umwelt und Verbraucherschutz NRW– 1 km x 1 km resolution, cover North Rhine-Westphalia (incl. Ruhr)

European emissions (Mt/year), 2005

CO NOX * VOC SOX **

INERIS/EMEP 47.43 19.01 13.38 18.58

EMEP/TNO 49.09 19.25 13.50 19.01

* NOX emissions are given as Mt (NO2) / year** SOX emissions are given as Mt (SO2) / year

INERIS/EMEP EMEP/TNO

UK emissions (Mt/year), 2005

* NOX emissions are given as Mt (NO2) / year** SOX emissions are given as Mt (SO2) / year

INERIS/EMEP EMEP/TNO

NAEI

CO NOX * VOC SOX **

INERIS/EMEP 2.41 1.59 0.89 0.73

EMEP/TNO 2.35 1.68 0.95 0.76

NAEI 2.38 1.51 0.92 0.68

London emissions (kt/year), 2005

* NOX emissions are given as kt (NO2) / year** SOX emissions are given as kt (SO2) / year

CO NOX * VOC SOX **

INERIS/EMEP 136.6 80.2 53.8 13.5

EMEP/TNO 295.6 180.5 116.6 33.5

NAEI 236.2 128.3 84.1 15.9

INERIS/EMEP EMEP/TNO

NAEI

North Rhine-Westphalia emissions (kt/year), 2005

CO NOX * VOC SOX **

INERIS/EMEP 903.4 224.4 222.8 144.9

EMEP/TNO 1094.8 381.0 247.4 205.8

LANUV x 1288.3 381.0 175.5 -

* NOX emissions are given as kt (NO2) / year** SOX emissions are given as kt (SO2) / yearx SNAP sectors 5, 6, 9, 10, 11 are not incl., and emissions are mixed from year 2000, 2004, and 2007.

INERIS/EMEP EMEP/TNO

LANUV

Department of Geosciences

WRF-Chem model results

Corr. coeff.

RETRO – obs. 0.415

INERIS – obs. 0.462

NAEI – obs. 0.494

Department of Geosciences

WRF-Chem model results

Corr. coeff.

RETRO – obs. 0.716

INERIS – obs. 0.718

NAEI – obs. 0.730

Department of Geosciences

EXTRA SLIDES

Department of Geosciences

WRF-Chem model results

Corr. coeff.

RETRO – obs. 0.470

INERIS – obs. 0.529

NAEI – obs. 0.620

Department of Geosciences

WRF-Chem model results

Corr. coeff.

RETRO – obs. 0.565

INERIS – obs. 0.577

NAEI – obs. 0.600