WP 312: Current chemical composition changes from different modes of transport E.Meijer, P.van...
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Transcript of WP 312: Current chemical composition changes from different modes of transport E.Meijer, P.van...
WP 312: Current chemical composition changes from
different modes of transport
E.Meijer, P.van VelthovenM.Gauss, I.S.A.Isaksen
O.DessensV.Grewe
D.Caro, D.HauglustaineP.Hoor, P.Jöckel, J.Lelieveld
WP 312: Current chemical composition changes from different modes of transport
Idea: QUANTIFY the effect of different means of transport on the
current state of the atmosphere Setup:
1. Take a number of models (six)2. same initialization, emissions etc … as far as possible3. simulate current conditions (2003) (BASE)4. sensitivity runs to investigate the effect of ROAD SHIP AIR ALL (ROAD + SHIP + AIR)
-5% -5% -5% - 5% each4. later upscaling to 100%
WP 312: Current chemical composition changes from different modes of transport
Status:- Monthly mean output perturbation fields for 2003 available on
server in Oslo (x,a)- Draft of Report and under revision within AC312 (general
assembly)- Timepos files produced for model/obsevation comparison
BASE ROAD SHIP AIR ALL TIMEPOS
TM4 x x x x x x OsloCTM2 x x x x x xp-TOMCAT x x x x x xLMDzINCA x x x x x xE39C ab ab ab ab ab xE5/M1 x b b b b x
a) alternative data provided (tagged ozone, different emissions used)b) problems due to nudging and coupling, perturbation fields discarded,
available on request
WP 312: Current chemical composition changes from different modes of transport
Emissions:
NOx
[Tg(N)/yr]
CO
[Tg(C)/yr]ROAD 6.85
(9.12)31.3
(84)DLR-IVF
SHIP 4.39
(3.0)0.6
(0.046)DNV
AIRCRAFT 0.76 -- AERO2K
Non-traffic 27.8
(22.9)341.3
(249)EDGAR32FT2000
Biogenic(CO) + soil(NO)
6.89
(12.0)48.2
(92.9)MPICHEMBrackets: Annual values from POET based on June
June values provided by M. Gauss
WP 312: Current chemical composition changes from different modes of transport NOx-Emissions: Annual mean NO-flux
ROAD SHIP
AIRCRAFT NON-TRAFFIC + SOIL
WP 312: Current chemical composition changes from different modes of transport CO-Emissions: Annual mean CO-flux
ROAD SHIP
NON-TRAFFIC BIOGENIC
WP 312: Current chemical composition changes
Comparison of models - Ozone BASE case
- Column ozone perturbation - Linearity of approach
WP 312: Current chemical composition changes
Comparison of models: Ozone BASE case (ppbv), July 2003, 1050-800 hPa
TM4 OsloCTM2
LMDzINCA p-TOMCAT
E39C ECHAM5/MESSy
WP 312: Current chemical composition changesComparison of models: Ozone BASE case (ppbv), July 2003, zonal mean
TM4 OsloCTM2
LMDzINCA p-TOMCAT
E39C ECHAM5/MESSy
WP 312: Current chemical composition changes
Comparison of models: Column Ozone Perturbations (DU), July 2003, ALL
TM4 OsloCTM2
LMDzINCA p-TOMCAT
E39C different scale !!!
-similar patterns-absolute numbers vary among CTM's (minima from 3.5 – 5.5 DU)
WP 312: Current chemical composition changesMean column ozone perturbation (DU) derived from all CTM’s
January
0
-1
-2
-3
-4
-5
-6July
0
-1
-2
-3
-4
-5
-6
January
15
10
5
0
July
15
10
5
0
Relative standard deviation (%)
2
1
0
-1
-2
2
1
0
-1
-2
WP 312: Current chemical composition changes
Linearity: Column Ozone Perturbations (DU): SUM(perturbations) – Perturbation (ALL emissions)
Sum of individual O3-perturbations (DU)ROAD+SHIP+AIR
O3-perturbation (DU)from ALL emissions reduced
rel. difference (%) January July
all CTM's
Linearity of approach achieved (~1%)
January
WP 312: Current chemical composition changes
Effect of different means of transportation - January / July
- PBL (1000 – 800 hPa)- UTLS (250 hPa)
- seasonal cycles- regional differences
Ozone perturbations (ppbv), by case, 1000 - 800 hPa
January ROAD July
January SHIP July
January AIRCRAFT July
Ozone perturbations (ppbv), by case, 250 hPa
January ROAD July
January SHIP July
January AIRCRAFT July
Ozone perturbations (ppbv), by case, zonal mean
January ROAD July
January SHIP July
January AIRCRAFT July
WP 312: Current chemical composition changes from different modes of transportOzone perturbations (DU) from different means of transport Tropics: 10S - 30NMid latitudes: 30N - 60N Arctic: 60N - 90N 1000 – 600 hPa
600 – 100 hPa
% relative to total column: dashed: PBL, solid: UTLS
SHIPROAD
Ozone perturbations (ppbv), by case, 1000 - 800 hPa
January ROAD July
January SHIP July
January AIRCRAFT July
WP 312: Current chemical composition changes from different modes of transportOzone perturbations from different means of transport in the boundary layer (< 800 hPa) by region as a function of time
East Asia: 100E - 120E , 30N-50NCentral Europe: 10W - 10 E , 40N-60NEastern US: 90W - 70 W , 30N-50N
WP 312: Current chemical composition changes from different modes of transportOzone perturbations from different means of transport in the boundary layer (< 800 hPa) by region as a function of time
East Asia: 100E - 120E , 30N-50NCentral Europe: 10W - 10 E , 40N-60NEastern US: 90W - 70 W , 30N-50N
dashed: example for regional variability of CTM's
WP 312: Current chemical composition changes from different modes of transportOzone perturbations from different means of transport in the UTLS (250 hPa) by region as a function of time
East Asia: 100E - 120E , 30N-50NCentral Europe: 10W - 10 E , 40N-60N Eastern US: 90W - 70 W , 30N-50N
OH-perturbation (104molec/cm3), by case, 1000-800 hPa
January ROAD July
January SHIP July
January AIRCRAFT July
OH perturbations (104 molec/cm3), by case, zonal mean
January ROAD July
January SHIP July
January AIRCRAFT July
WP 312: Current chemical composition changes from different modes of transport
Summary:- Models agree by 15 % calculating the summed effect of traffic
emissions on total ozone- Linear approach successful- Mean maxiumum total column reduction of ozone:
3.5 DU (Jan) – 4.5 DU (July)- discrepancies between models: 3.5 DU – 5.5 DU (July)- PBL: - road emissions: Largest regional effect of on ozone
central Europe, Eastern US, summer- ship emissions: dominating ozone perturbation over the central eastern Atlantic, weaker seasonal cycle- 250 hPa: road emissions during NH-summer ~ 50% of
aircraft effectship emissions of importance in the tropicsimpact of road+ship ~ aircraft
WP 312: Current chemical composition changes from different modes of transport
THANK YOU !
CO perturbations (ppbv), by case, zonal mean
January ROAD July
January SHIP July
January AIRCRAFT July
WP 312: Current chemical composition changes from different modes of transportOzone perturbations from different means of transport in the boundary layer (< 800 hPa) in polluted areas and 30°E downwind
East Asia: 100E - 120E , 30N-50NCentral Europe: 10W - 10 E , 40N-60N dashed: 30E downwindEastern US: 90W - 70 W , 30N-50N
WP 312: Current chemical composition changes from different modes of transportOzone perturbations from different means of transport in the UTLS (250 hPa) by region as a function of time
East Asia: 100E - 120E , 30N-50NCentral Europe: 10W - 10 E , 40N-60N Eastern US: 90W - 70 W , 30N-50N
WP 312: Current chemical composition changes
AIRCRAFT ALL
Zonal mean ozone perturbations (ppbv), January
ROAD SHIP
WP 312: Current chemical composition changes
AIRCRAFT ALL
Zonal mean ozone perturbations (ppbv), July
ROAD SHIP
WP 312: Current chemical composition changes from different modes of transportEmissions:
NOx
[Tg(N)/yr]
CO
[Tg(C)/yr]ROAD 6.85 31.3 DLR-IVF
SHIP 4.39 0.6 DNV
AIRCRAFT 0.76 -- AERO2K
Non-traffic 27.8 341.3 EDGAR32FT2000
Biogenic(CO) + soil(NO)
6.89 48.2 MPICHEM
WP 312: Current chemical composition changes from different modes of transport
Emissions:
NOx
[Tg(N)/yr]
CO
[Tg(C)/yr]ROAD 6.85 31.3 DLR-IVF
SHIP 4.39 0.6 DNV
AIRCRAFT 0.76 -- AERO2K
Non-traffic 27.8 341.3 EDGAR32FT2000
Biogenic(CO) + soil(NO)
6.89 48.2 MPICHEM
WP 312: Current chemical composition changes from different modes of transportOzone perturbations from different means of transport in the boundary layer (< 800 hPa) by latitude as a function of time
Tropics: 10S - 30NMid latitudes: 30N - 60N Arctic: 60N - 90N
Other tracers: - OH
- CO
WP 312: Current chemical composition changes from different modes of transport