INERIS contribution to Eurodelta 29102003

1
INERIS contribution to Eurodelta -29/10/2003-
CHIMERE-Aerosol runs 0base case 1 CLE2 MFR1
(Sox, Nox, PM)3 MFR2 (COV, CO, NH3) 4 MFR
(all) 5 MFR1 (Germany)6 MFR2 (Germany) 7 MFR
(Germany)
Atmospheric concentrationsO3, SO2, NO2, PM10,
PM2.5,sulfate, nitrate, ammonium Deposition
NOx, SOx, NHx - wet/dry deposition- forests
?Comparisons of maps of pollutant reduction ()
related to 1999
2
About CHIMERE-Aerosol...
Main description given in City-Delta 2 framework
but . - No sea salts, no dust (re-suspension?)
- No PM boundary conditions
- Performance assessed comparing simulations with
observations EMEP stations, CD2 evaluation
phase, TFMM framework- Day per day analysis
with the french air quality forecast
system, (http//prevair.ineris.fr) Experimental
Aerosol forecasts availableby the end of the
year.
3
CLE
MFR1 (NOx, SOX, PM)
O3
MFR
MFR2 (VOC, CO, NH3)
4
CLE
MFR1 (NOx, SOX, PM)
NO2
MFR
MFR2 (VOC, CO, NH3)
5
CLE
MFR1 (NOx, SOX, PM)
PM2.5
MFR2 (VOC, CO, NH3)
MFR
6
CLE
MFR1 (NOx, SOX, PM)
nitrates
MFR2 (VOC, CO, NH3)
MFR
7
CLE
MFR1 (NOx, SOX, PM)
MFR2 (VOC, CO, NH3)
MFR
sulfates
8
Comparisons for ozone concentrations
CLE everywhere
MFR in Germany
-quite the same geographic pattern, influence of
reductions in a small area surrounding Germany
9
Comparisons for PM 2.5 concentrations
CLE everywhere
MFR in Germany
-Impact more important (-10) covering a larger
area
10
Comparisons for sulfate concentrations
CLE everywhere
MFR in Germany
- Positive effect in the north-East of France,
Suitzerland and Germany
11
Comparisons for NO2 concentrations
CLE everywhere
MFR in Germany
-quite the same geographic pattern, influence of
reductions in a small area surrounding Germany
12
Questions and remarks

• A lot of runs made in a very short delay time
  needed for interpretation and analysis
• Purpose of the exercise  uncertainties 
  assessment of S/R matrices
• More than one country used as a test (Italy,
  France)
• More feedback needed related to aerosol
  simulation
• Delta results what about the reference year?
• Quite small differences comparing CLE/MFR
  equivalent to the uncertainties of the results?
• Need for one more run for 1999 or 2000 to be
  really consistent for analysis?