synergetic use of mobile doas observation during cindi-219-sept 20-sept 21-sept 22-sept 23-sept...
TRANSCRIPT
Synergetic use of mobile DOAS observation during CINDI-2
A. Merlaud, F. Tack, F. Hendrick, M. Van Roozendael (BIRA), D. Constantin, A. Rosu (UGal), K. Riffel, S. Donner, T. Wagner (MPIC), S. Schreier (Boku), A. Richter (IUP Bremen), H. Eskes (KNMI)
Outline
⢠Status in Yokohama
⢠VCDs of Mobile DOAS vs BIRA Max-DOAS
⢠Azimuthal variability ?
⢠Comparison with models
⢠Comparison with OMI
Preliminary conclusions in September 2017
⢠Agreement between BIRA Mobile and MaxDOAS
⢠Good agreement between DOAS instruments and Lotos Euros on Sept 13
⢠seems less good on Sept 14, model > measurements in afternoon
⢠Measurements > model on Sept 15 all day
⢠What s next?
5-sept 6-sept 7-sept 8-sept 9-sept 10-sept 11-sept
BOKU
BIRA_car
BIRA_bike
MPIC
UGAL
12-sept 13-sept 14-sept 15-sept 16-sept 17-sept 18-sept
BOKU
BIRA_car
BIRA_bike
MPIC
UGAL
19-sept 20-sept 21-sept 22-sept 23-sept 24-sept 25-sept
BOKU
BIRA_car
BIRA_bike
MPIC
UGAL
Overview of the measurements
Aeromobil vs BIRA Max-DOAS (13-14-15 September)
BikeDOAS vs BIRA Max-DOAS (13-14-15 September)
UGAL Mobile DOAS vs BIRA Max-DOAS (14-15-24 September)
MPIC Mini MaxDOAS vs BIRA Max-DOAS (14-15-24 September)
BOKU Mini MaxDOAS vs BIRA Max-DOAS (13-14-15 September)
Coordinated Mobile DOAS measurements during CINDI-2
13/09/2016
14/09/2016
15/09/2016
8.4 â 8.48 UTC 14.42 â 14.48 UTC 8.92 â 8.98 UTC
Azimuthal variability in the VCDs seen with the BIRA Max-DOAS
Measurements vs Lotos Euros
-7 km resolution -surface to 3.5 km -O3, NO2, NO, SO2, CO, PM10, PM2.5
Measurements vs Lotos Euros 13 September 2016
Measurements vs Lotos Euros 14 September 2016
Measurements vs Lotos Euros 15 September 2016
Lotos Euros OMI
13 September 2016 at 12 UT
Can the model be used to reduce the representativeness error between the Mobile DOAS and OMI ?
Conclusions
⢠Dataset of mobile doas vcds consistent with Max-DOAS
⢠Limited azimuthal variability on Sept 13-14-15
⢠Including additional measurements confirms earlier comparisons with Lotos Euros on Sept 13-14-15
⢠Higher VCDs on 15 September correlated with transport from most polluted areas
⢠For comparison with satellite, how do mobile measurements reduce the representativeness error? Does it help to include a model-based correction?