1. EUROPEAN TOPIC CENTRE ON AIR AND CLIMATE CHANGE DEMv4.1DEMv4.1 fully consistent with EMEP-EBAS requirements on meta informationfully consistent with EMEP-EBAS requirements on meta information preloaded with meta informationpreloaded with meta information made available for EMEP and EoI data suppliers via ETC-ACC web site (end November 2001)made available for EMEP and EoI data suppliers via ETC-ACC web site (end November 2001) fully consistent with EMEP-EBAS requirements on meta informationfully consistent with EMEP-EBAS requirements on meta information preloaded with meta informationpreloaded with meta information made available for EMEP and EoI data suppliers via ETC-ACC web site (end November 2001)made available for EMEP and EoI data suppliers via ETC-ACC web site (end November 2001)

2. EUROPEAN TOPIC CENTRE ON AIR AND CLIMATE CHANGE DEMv5 Harmonisation Import wFulfil EoI obligations: wControl/adaptation meta information obliged EoI + import of DEM format or NASA Ames format wImport of ISO files + import of missing meta data obliged EoI wFulfil EMEP obligations: wImport of NASA Ames file wControl/adaptation meta information + import of DEM format + import of meta information obliged EMEP wFulfil EoI obligations: wControl/adaptation meta information obliged EoI + import of DEM format or NASA Ames format wImport of ISO files + import of missing meta data obliged EoI wFulfil EMEP obligations: wImport of NASA Ames file wControl/adaptation meta information + import of DEM format + import of meta information obliged EMEP

3. EUROPEAN TOPIC CENTRE ON AIR AND CLIMATE CHANGE DEMv5 Harmonisation Import wFulfil EoI + EMEP obligations: wControl/adaptation meta information obliged EoI + import of DEM format + import of meta information obliged EMEP wControl/adaptation meta information obliged EoI+ Import of NASA Ames file wFulfil EoI + EMEP obligations: wControl/adaptation meta information obliged EoI + import of DEM format + import of meta information obliged EMEP wControl/adaptation meta information obliged EoI+ Import of NASA Ames file

4. EUROPEAN TOPIC CENTRE ON AIR AND CLIMATE CHANGE DEM v5 Harmonisation import ISO Format DEMNasa Ames 1001 Format DEM Format data Missing meta data (obliged EoI) data EoI NA Meta data Missing meta data (obliged NA)

5. EUROPEAN TOPIC CENTRE ON AIR AND CLIMATE CHANGE DEM v4 EMEP extensions wThree Layer Structure