Slide 1 Future ECMWF Contributions to GEO Main contributions to GEO offered by ECMWF: -Long-standing expertise in numerical weather prediction -Observing System Experiments (OSEs) -TIGGE -MACC -Reanalysis work Participation: -Ministerial meetings -Plenary meetings -GEO HLWG -User Interface Committee (UIC) -Science and Technology Committee (STC) GEPW-5, London, February 2011

Slide 2 Floods in Pakistan GEPW-5, London, February 2011

Slide 3 GMES Atmosphere Weather services Atmospheric environmental services Climate forcing by gases and aerosols Long-range pollutant transport European air quality Dust outbreaks Solar energy UV radiation Environmental agencies provide data & information on Services related to the chemical and particulate content of the atmosphere GEPW-5, London, February 2011

Slide 4 MACC Daily Service Provision Air quality Global Pollution Aeros ol UV index Biomass burning GEPW-5, London, February 2011

Slide 5 Implications of coverage differences on trends GEPW-5, London, February 2011 ERA sampled to have same coverage as CRUTEM3 ERA-40 for ERA-Interim from 1989 Full ERA coverage 12months running means Temperature anomaly (K) relative to , averaged over all land areas

Slide 6 Reanalyses provide a complete picture of recent trends example: temperature Deg C/decade, GEPW-5, London, February 2011