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Workshop “Atmospheric monitoring and inverse modelling for verification of national and EU bottom-up GHG inventories” - reportWorkshop "Atmospheric monitoring and inverse modelling for verification of national and EU bottomupGHG inventories " - reportFigure 2: Top: SCIAMACHY retrievals of column-averaged CH 4 mixing ratios [Frankenberg,et al., 2006], corrected with bias correction from TM5-4DVAR data assimilation system (biascorrection 2nd order polynomial as function of latitude and month) including high-accuracysurface measurements from NOAA/ESRL. Bottom: Assimilated column-averaged CH 4 mixingratios based on TM5-4DVAR system [Bergamaschi et al., 2007]. We thank NOAA/ESRL forproviding the CH 4 surface data.ReferencesBergamaschi, P., J.F. Meirink, M. Krol, and G.M. Villani, New TM5-4DVAR inverse modellingsystem to estimate global and European CH 4 sources, this report, 2007.Frankenberg, C., J. F. Meirink, P. Bergamaschi, A. P. H. Goede, M. Heimann, S. Körner, U.Platt, M. van Weele, and T. Wagner, Satellite chartography of atmospheric methane fromSCIAMACHY on board ENVISAT: Analysis of the years 2003 and 2004, J. Geophys.Res., 111, D07303, doi:10.1029/2005JD006235, 200626
Workshop “Atmospheric monitoring and inverse modelling for verification of national and EU bottom-up GHG inventories” - reportWorkshop "Atmospheric monitoring and inverse modelling for verification of national and EU bottomupGHG inventories " - reportGEOMON-IP - Global Earth Observation and MonitoringPeter RaynerLaboratoire des Sciences du Climat et l'Environnement (LSCE), Gif sur Yvette, FranceGEOMON is an integrated project under the European Commission’s sixthFramework Programme. It’s main objective is to construct a prototype system foratmospheric composition monitoring for climate applications, by the combination ofground-based with satellite observations. GEOMON is a contribution to GEOSS.GEOMON is organised around three key scientific questions:1. What are the regional European trends and variability of greenhouse gases,tropospheric and stratospheric ozone, aerosols, and pollutants in relation tochanges in surface emissions?2. How to validate top-down satellite observation of the changing atmosphericcomposition, and integrate them with ground based stations and airborneobservations into a coherent picture?3. What are the global trends of atmospheric composition from ground-based andsatellite observations assimilated in modelling studies, and what keymeasurements should be added for reducing uncertainties on surface emissionsand atmospheric processes?In this summary we focus on the application to the greenhouse gases although thescope of the project includes chemically active species and aerosols.Strategy1. Quantify and understand the ongoing changes of the atmospheric composition.2. Integrate ground-based and satellite observations.3. Build an integrated pan-European atmospheric observing system of greenhousegases, reactive gases, aerosols, and stratospheric ozone.GEOMON activitiesGEOMON is divided into four data gathering activities, three of which parallel theglobal activities of GEMS. A modelling activity integrates data from the four datagathering activities and the final activity is responsible for data archiving andoutreach. The activities are briefly summarised below.27
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