HR: 1340h
AN: A33C-1413    [Abstracts]
TI: Reanalysis and Forecasts of Global Reactive Gases in the GEMS Project
AU: * Schultz, M G
EM: m.schultz@fz-juelich.de
AF: ICG-2, Research Centre Juelich, Leo Brandt Str, Juelich, 52425, Germany
AU: Flemming, J
EM: johannes.flemming@ecmwf.int
AF: European Centre for Medium Range Weather Forecast, Shinfield Park, Reading, RG2 9AX, United Kingdom
AU: Dethof, A
EM: antje.dethof@ecmwf.int
AF: European Centre for Medium Range Weather Forecast, Shinfield Park, Reading, RG2 9AX, United Kingdom
AU: Simmons, A
EM: adrian.simmons@ecmwf.int
AF: European Centre for Medium Range Weather Forecast, Shinfield Park, Reading, RG2 9AX, United Kingdom
AU: Razinger, M
EM: miha.razinger@ecmwf.int
AF: European Centre for Medium Range Weather Forecast, Shinfield Park, Reading, RG2 9AX, United Kingdom
AU: Stein, O
EM: olaf.stein@zmaw.de
AF: Max Planck Institute for Meteorology, Bundesstr 54, Hamburg, 20146, Germany
AU: Ordonez, C
EM: ordc@aero.obs-mips.fr
AF: Laboratoire d'Aerologie, 14 avenue Edouard Belin, Toulouse, 31400, France
AU: Cammas, J
EM: camjp@aero.obs-mips.fr
AF: Laboratoire d'Aerologie, 14 avenue Edouard Belin, Toulouse, 31400, France
AU: Eskes, H
EM: eskes@knmi.nl
AF: Het Koninklijk Nederlands Meteorologisch Instituut, Wilhelminalaan 10, DeBilt, 3730, Netherlands
AU: van Weele, M
EM: vanweele@knmi.nl
AF: Het Koninklijk Nederlands Meteorologisch Instituut, Wilhelminalaan 10, DeBilt, 3730, Netherlands
AU: Moinat, P
EM: moinat@meteo.fr
AF: Meteo France, 42 Avenue de Coriolis, Toulouse, 31057, France
AU: Flentje, H
EM: flentje@dwd.de
AF: German Weather Service, Albin-Schwaiger-Weg 10, Hohenpeissenberg, 82383, Germany
AU: Katragkou, E
EM: katragkou@auth.gr
AF: Aristotle University, Campus, Thessaloniki, 54124, Greece
AU: Melas, D
EM: melas@auth.gr
AF: Aristotle University, Campus, Thessaloniki, 54124, Greece
AU: Granier, C
EM: granier@aero.jussieu.fr
AF: Universite Pierre et Marie Curie, 4, Place Jussieu, Paris, 75252, France
AU: Arola, A
EM: arola@fmi.fi
AF: Finnish Meteorological Institute, Erik Palménin aukio, Helsinki, 00560, Finland
AU: Daerden, F
EM: frank.daerden@aeronomie.be
AF: Belgian Institute for Space Aeronomy, Space Pole, Uccle, 1180, Belgium
AU: Bovensmann, H
EM: bovensmann@iup.physik.uni-bremen.de
AF: Institute for Environmental Physics and Remote Sensing, Otto-Hahn-Allee 1, Bremen, 28359, Germany
AU: Hollingsworth, A
EM: anthony.hollingsworth@ecmwf.int
AF: European Centre for Medium Range Weather Forecast, Shinfield Park, Reading, RG2 9AX, United Kingdom
AB: The European GEMS project (Global Environmental Monitoring using Satellite and in-situ data) is setting up a comprehensive modeling system to monitor and predict concentrations of greenhouse gases, reactive gases and aerosols on the global and regional scale. The models are linked to ECMWF's integrated forecast system and include state-of-the-art 4D variational data assimilation of data from multiple satellite instruments. In the GEMS sub project on global reactive gases a focus is placed on monitoring tropospheric and stratospheric ozone and its precursor species (CO, NOx, CH2O) and to establish a system for monitoring the surface UV radiation. Three different chemistry transport models have been coupled to the ECMWF model exchanging trace gas fields and weather variables in one direction and chemical formation and loss rates in the other. The results from this coupled set-up are evaluated using independent data from ground-based networks, aircraft observations (e.g. MOZAIC) and independent satellite retrievals. Tools are being developed to automate the evaluation procedure in order to employ the model in an operational setting. At present, a first reanalysis simulation has been performed for the year 2003 and the coupled model has been tested in near-realtime mode. Two case studies were defined to analyze model performance during the northern hemisphere winter season (with a focus on Arctic ozone depletion) and during the European heat wave in early August 2003. The GEMS model results for these periods are compared to CTM simulations without data assimilation and specific attention is given to model transport characteristics. We will present the strategy and technical design of the GEMS-GRG modeling system, report on various results obtained and lay out the future development path towards a fully operational global atmospheric service.
UR: http://www.ecmwf.int/research/EU_projects/GEMS/
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 0365 Troposphere: composition and chemistry
DE: 0368 Troposphere: constituent transport and chemistry
DE: 3315 Data assimilation
DE: 3355 Regional modeling
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting