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GEWEX 1988 

WOCE 1990-2002. TOGA 1985-1994. GEWEX 1988 . SOLAS 2001 ->. SPARC 1992 . ACSYS/C li C 1994–2003/2000 . CLIVAR 1995 . WGNE WGCM WGSF. SPARC 1992 . http://www.aero.jussieu.fr/~sparc. Recent and Expected Deliverables. SPARC reference climatology (done)

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GEWEX 1988 

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  1. WOCE 1990-2002 TOGA 1985-1994 GEWEX 1988  SOLAS 2001 -> SPARC 1992 ACSYS/CliC 1994–2003/2000 CLIVAR 1995  WGNE WGCMWGSF

  2. SPARC 1992 http://www.aero.jussieu.fr/~sparc Recent and Expected Deliverables • SPARC reference climatology (done) • SPARC Aerosol Assessment • Review paper on the “Annular Modes” • Report on Chemistry-Climate • Instituted new PSC assessment for next WMO ozone assessment • Instituted group on GWP of HFC-134a for IPCC

  3. Stratospheric Chemistry and Climate Model Development Process Studies Data Stratosphere-Troposphere coupling Detection, Attribution & Prediction of Stratospheric Changes SPARC’s New Themes

  4. Workshop on “Process-oriented validation of coupled-chemistry climate models”Grainau / Garmisch-Partenkirchen, Germany, November 2003Conveners: V. Eyring, N.R.P. Harris, M. Rex, T.G. Shepherd Motivation CCMs have different levels of complexity, produce a wide range of results concerning timing and extent of ozone recovery and the overall confidence of ozone predictions is currently hard to assess Scope Develop a standard for process-oriented model validationwith a focus on the model’s ability to predict future ozone Outcome A table of core processes for stratospheric CCMs within 4 categoriesDynamics, Chemistry & Microphysics, Radiation, and TransportFor each process, the table includes model diagnostics, variables relevant to apply the diagnostic in CCMs, sources of observational data, references, contacts and links Desires CCM groups apply diagnostics in a step-wise approach over the next years Broad support from atmospheric science community and programme managers Way ahead SPARC working group on CCM validation:progress can be made in time for next WMO-UNEP and IPCC assessments  Development of diagnostic software packages Benefit Overall confidence in CCMs will increase http://www.pa.op.dlr.de/workshops/ccm2003

  5. SPARC General Assembly1-6 August 2004Victoria, Canada http://sparc.seos.uvic.ca

  6. http://www.sparc.sunysb.edu ftp://atmos.sparc.sunysb.edu Directory: /pub/sparc

  7. New Satellite Launches 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 TRMM ADEOSII C1 and C2 TERRA AQUA ENVISAT D1 and DX ISCCP 2 ISCCP (Clouds) Version 1.1 Version 2 SRB (Radiation) NVAP GVAP GVAP (Water Vapour) Version 2 GPCP (Precipitation) Initiative I Initiative II ISLSCP (Land-Surface) III GACP (Aerosols) GACP *Hatched lines represent planned data sets Global data sets www.gewex.org

  8. MODELS PROJECT TEMPERATURE INCREASES ASSOCIATED WITH CO2 INCREASES. OBSERVATIONS INDICATE WARMER TEMPERATURES ARE OCCURING. HOWEVER, TRENDS DERIVED FROM GEWEX SATELLITE CLOUD PRODUCTS INDICATE THAT CLOUD COVER MAY HAVE BEEN DECREASING DURING THE SAME PERIOD. WHAT INFLUENCES HAVE THESE POSSIBLE DECREASES IN CLOUD COVER HAD ON THE RECENT TRENDS IN TEMPERATURE? The same for water vapour?

  9. 0.3 0.6 0.6 0.3 0.3 0.6 0.2 0.4 0.4 0.2 0.4 0.2 0.2 0.2 0.1 0.1 0.2 0.1 0.0 0.0 0.0 0.0 0.0 0.0 -0.1 -0.1 -0.1 -0.2 -0.2 -0.2 -0.4 -0.2 -0.4 -0.2 -0.4 -0.2 -0.6 -0.6 -0.3 -0.3 -0.3 -0.6 83 93 79 87 97 81 91 01 85 95 89 99 GPCP: No evidence for a significant global trend over last 20 years... Curtis/Adler/Huffman 912 But regional trends exist

  10. CEOP Implementation Underway Timing of new satellites & GEWEX/CLIVAR campaigns provides opportunity for significant benefit from a more coordinated observation period. Coordinated EnhancedObserving Period North American Monsoon Experiment (NAME) Monsoon Experiment in South America (MESA) (MDB)

  11. The First Global Integrated Data Sets of the Water Cycle

  12. WCRP: www.wmo.ch/web/wcrp/wcrp-home.html SPARC: www.aero.jussieu.fr/~sparc Climate – chemistry model intercomparison workshop: www.pa.op.dlr.de/workshops/ccm2003 SPARC data centre: www.sparc.sunysb.edu, ftp server: atmos.sparc.sunysb.edu, directory /pub/sparc SPARC General Assembly: sparc.seos.uvic.ca GEWEX: www.gewex.org

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