NILU Contributions to EUCAARI Andreas Stohl, John Burkhart, Kjetil Tørseth Norwegian Institute for Air Research Task 5.2: EUCAARI Platform – Data  Task 5.2.2: Atmospheric Transport Modeling  Task 5.2.3: Online Integration of ATM Products 2008 EUCAARI Workshop Somewhere near the Frankfurt Airport...

EUCAARI-FLEXPART ASPAspvreten, SwedenMPZMelpitz, Germany BEOBEO Moussala, BulgariaMTCMonte Cimone, Italy BIRBirkenes, NorwayMSYMontseny, Spain CBWCabauw, NetherlandsOBKKosetice, Czech Republic FKLFinokalia, GreecePALPallas, Finland HWLHarwell, United KingdomPDDPuy de Dôme, France JFJJungfraujoch, SwitzerlandPLAPreila, Lithuania JRCJRC-Ispra, ItalySMRHyytiälä, Finland KPOK-Puszta, HungaryVHLVavihill, Sweden MHDMace Head, IrelandZEPZeppelin, Spitsbergen, Norway Standardized model set up  20 day backward runs, 3-hourly output: 00, 03, 06, 09, 12, 15, 18, 21  1º x 1º spatial resolution, 91 vertical levels, nested domain: 0.25º  ECMWF input  40,000 particles Customized runs for campaigns  Forward & backward runs

EUCAARI-FLEXPART Status

EUCAARI-FLEXPART Products Improved web portal  Updated project information  Station status in real time Access to traditional FLEXPART interface  Retroplume Summary  Potential Emissions Sensitivity  Emissions Time Series *Under Development* new interface to interact with NILU-EUCAARI Database

NILU EUCAARI-FLEXPART Products  Main page for FLEXPART  Model details, help resources, maillist|  EUCAARI front page  Direct links to project resources  Real-time station status updates

EUCAARI-FLEXPART Traditional Products: Emissions Tracer Time Series ▪ Total ▪ Agespectrum ▪ North American, Asian, European, African, South American, Australian Retroplume Summary Column Residence Time (Total PES)‏ Footprint Residence Time (Footprint PES)‏ Source Contributions: CO, NO2, SO2

EUCAARI-FLEXPART Traditional Products: Emissions Time Series Total Agespectrum CO, NO2, SO2 North American, Asian, European, African, South American, Australian

EUCAARI-FLEXPART Traditional Products: Retroplume Summary Three dimensional product:  Particle plume centroid locations plotted by circles  Size is a function of number of particles in cluster  Color represents elevation  Numbers indicate days back in time Centroid characteristics are also shown:  Altitude  % ABL – atmospheric boundary layer  %STR – stratosphere

EUCAARI-FLEXPART Traditional Products: Potential Emissions Sensitivity Total Column PES Integrated over all vertical layers Analagous to 'trajectory' Includes 'retroplume' centroid locations Units: ns m kg -1

EUCAARI-FLEXPART Traditional Products: Footprint Emissions Sensitivity Footprint PES lowest model layer 0-100m Units: ns kg -1

EUCAARI-FLEXPART Traditional Products: CO, NO2, SO2 Source Contribution Product:  we fold (i.e., multiply) the PES footprint with the emission flux densities (in unitsof kg m−2 s−1) taken from an appropriate emission inventory. Result: potential source contribution (PSC) plot (in units of ppbv m−2)‏ global EDGAR 3.2 Fast Track 2000 dataset (Olivier et al., 2001) and blend this global inventory with higher-resolution regional inventories where North American inventory from Frost et al. (2006)‏ European inventory from the UNECE/EMEP (United Nations Economic Commission for Europe/Cooperative Programme for Monitoring and Evaluation of Long Range Transmission of Air Pollutants in Europe) emission database (Vestreng et al., 2005).

EUCAARI-FLEXPART Traditional Products: Emissions Time Series Agespectrum North American, Asian, European, African, South American, Australian Advantage of integrated system: comparing model results with measured time series of long-lived tracers (e.g., CO), the model’s skill can be checked. Cases where an observed event is not reproduced by the model can be identified. Likely indicates:  a source missing in the emission inventories used, or  errors in the simulated transport. This important quality check cannot be done when using classical trajectories.

EUCAARI-FLEXPART Improved product browser WP: Goals  Provide easier navigation between products  Easier date access  Improved access to other stations for comparison  Direct links to measurement data Status  In development  Real-time station status updates