LMDzt-INCA (Interaction of chemistry and aerosol)  
 
Science :: Documentation :: People+Projects :: News :: Chemical Forecasts

GLOBAL CHEMICAL WEATHER FORECAST

more results

 

brief description
POLARCAT

Three day run, using the meteorological forecasts (NCEP) of the 20100320 with INCA

date
 Surface ozone - Daily values (µg/m3) PM10 - Daily values (µg/m3)
Forecast for 20100320 :
forecast J0 forecast J0
Forecast for 20100321 :
forecast J+1 forecast J+1
Forecast for 20100322 :
forecast J+2 forecast J+2

Brief description

Results obtained using:
  • Resolution: 3.75 long x 2.5 lat
  • LMDZINCA parallel : LMDZ version 4 - INCA version 3
  • Meteorological fields: winds (u,v) are nudged every 6 hours using NCEP forecasts (or ECMWF forecasts on the "more results" interface)
  • Emissions (monthly resolution ):
    1. For gaseous species:
      - Anthropogenic emission inventory based on EDGAR V3.0 [Olivier et al, 2001]
      - Biomass burning emissions based on the inventory of Van der Werf et al. 2003 averaged over the period 1997-2001
      - Biogenic emissions (isoprene, terpenes, acetone and methanol) computed using the ORCHIDEE (Organizing Carbon and Hydrology in Dynamic Ecosystems) dynamical vegetation model [Krinner et al., 2005] and the parameterization of Guenther et al. 1995 as described by Lathière et al. 2005
      - NO soil emissions calculated in ORCHIDEE based on the parameterization of Yienger and Levy 1995
      - Lightning NOx emissions parameterized according to Price and Rind 1992 as described by Jourdain and Hauglustaine 2001
    2. For aerosols:
      - Sulfate production from Boucher et al. 2002, using the on-line computed photo-oxidant fields from the gas phase chemistry module
      - Black carbon and particulate organic matter emissions based on the emission database from Liousse et al. 1996
      - Dust emitted as a function of windspeed [Schulz et al., 1998; Balkanski et al., 2003; Bauer et al., 2004; Timmreck and Schulz, 2004]
      - Sea salt emissions as a function of windspeed from Guelle et al., 2001 and Schulz et al., 2003


    • Short-term improvements: hourly outputs at ground stations, 1°x1° resolution, higher temporal resolution for emissions

    This near real time forecast system is a beta version. Please let us know if you have any comments or recommendations to improve this tool. This tool and the web interface are mainly designed to be used as helpful support of in-situ measurement campaigns. Thus, let us know if you need any specific graphical zoom.

    Acknowledgments:
    European Centre for Medium-range Weather Forecasts and National Centers for Environmental Prediction for providing weather forecasts data. F. Chevallier for his help regarding the ECMWF forecasts, L. Fairhead and F. Hourdin for providing the scripts, R. Vautard and L. Menut for helpful advices and people who took part in the INCA model development.

    Bonus
    There is also a neal-real time simulation of the terrestrial biosphere using the ORCHIDEE model. Follow this link.

    return

    Development of near real time system: Sophie Szopa, Anne Cozic, Didier Hauglustaine and Michael Schulz
    Contact: Sophie Szopa (LSCE/IPSL)

     

     
               © Laboratoire des Sciences du Climat et de l'Environnement