1. 1 Evergreen Workshop 19-20 January 2006 KNMI, de Bilt Netherlands WMO Global Atmosphere Watch (GAW) Programme In The Context Of Integrated Global CO 2 Observations Leonard Barrie Chief, Environment Division, WMO Lbarrie@wmo.int Search Engine “GAW”  www.wmo.ch/web/arep/gaw/gaw_home.html

2. Observations: All Sources  All measure CO2 (total column, vertical profile, surface in situ)  Each have own data centre(s)  Each have own quality assurance programmes  Missing a total column network.  Currently not well coordinated with each other What Do These Systematic CO2 ObservationsHave In Common? Commercial Aircraft JAL Satellites- not originally dedicated: SCIAMACHY - dedicated and future :GOSAT, OCO WMO-GAW Global CO2 Monitoring Network of GCOS Commercial Aircraft Future: MOZAIC

3. 3 Evergreen Workshop 19-20 January 2006 KNMI, de Bilt Netherlands A More Systematic Approach To Integration of Atmospheric Chemistry Observations Is Needed

4. 4 Evergreen Workshop 19-20 January 2006 KNMI, de Bilt Netherlands Integrated Global Observing Strategy (IGOS) Partnership Themes Ocean Global Carbon Cycle (IGCO) Global Water Cycle (IGWCO) Geo-Hazards Atmospheric Chemistry (IGACO) Coastal (incl. Coral-Reef) Land ……

5. 5 Evergreen Workshop 19-20 January 2006 KNMI, de Bilt Netherlands

6. Chemical species Air Quality Oxidation Capacity Climate Stratospheric Ozone Depletion O3O3 H 2 O (water vapour) CO CO 2 CH 4 HCHO VOCs N2ON2O NO x = NO+NO 2 HNO 3 SO 2 BrO, ClO, OClO HCl, ClONO 2 CH 3 Br, CF 3 Br, CFC-11, CFC-12, HCFC-22 aerosol optical properties actinic flux IGACO TARGET VARIABLE LIST

7. Timeline Diagram Carbon Dioxide

8. The IGACO System Components

9. 9 Evergreen Workshop 19-20 January 2006 KNMI, de Bilt Netherlands What is GAW?  WMO/GAW was established 1989 by merging GO 3 OS and BAPMoN.  GAW focuses on global networks for GHGs, ozone, UV, aerosols, selected reactive gases, and precipitation chemistry.  GAW is a partnership involving contributors from 80 countries.  GAW is coordinated by the Environment Division of WMO/AREP.  Currently GAW coordinates activities and data from 23 global stations, 637 regional stations, and 19 contributing and associate stations

10. 10 Evergreen Workshop 19-20 January 2006 KNMI, de Bilt Netherlands The GAW Mission  Systematic Global Monitoring Of Chemical Composition of the Atmosphere.  Analysis and Assessment in Support of International Conventions.  Development Of Air Pollution and Climate Predictive Capability

11. 11 Evergreen Workshop 19-20 January 2006 KNMI, de Bilt Netherlands October 2006 GCOS-GAW Agreement establishing the: WMO/GAW Global Atmospheric CO2 & CH4 Monitoring Network as a Comprehensive Network of GCOS

12. Synthesis IGACO Analysis GAW Global CO 2 & CH 4 Network Components SCIENTIFIC ADVISORY GROUP(SAG) for GHGs (Expert C Measurement Community) QA & CALIBRATION CENTRES: NOAA/CMDL, MeteoSwiss/EMPA, Japan Met. Agency(JMA) CENTRAL CALIBRATION. LABORATORY (CCL) World Reference Standard US- NOAA GAW STATIONS & GAWSIS Global Regional GAW WORLD DATA CENTRE for GREENHOUSE GASES:(WDCGG) Twinning Workshops Calibration, Training Site Visits, Comparisons Contributing Networks Satellite Observations CAS/WG for Environmental Pollution And Atmospheric Chemistry WMO/GAW Secretariat AREP BIPM/CCQM

13. 13 Evergreen Workshop 19-20 January 2006 KNMI, de Bilt Netherlands GAW SAG for Greenhouse Gases  Dlugokencky Edward, Chairman (US)  Brunke, Ernst (S. Africa)  Butler, James (US)  Heimann, Martin (Germany)  Krummel, Paul (Australia)  Scheel, Hans-Eckhart (Germany)  Tsutsumi, Yukitomo (Japan)  Leonard Barrie (Secretariat)

14. GAW Global Carbon Dioxide Network {Major Partner NOAA/CMDL}

15. 15 Evergreen Workshop 19-20 January 2006 KNMI, de Bilt Netherlands http://gaw.kishou.go.jp/wdcgg.html All Data Available From GAW World Data Centre For Greenhouse Gases

16. 16 Evergreen Workshop 19-20 January 2006 KNMI, de Bilt Netherlands

17. GCOS A Hierarchy Of Strategies, Systems, Programmes, Networks, Related To Systematic Atmospheric CO2 Observations GEOSS GMES IGOS IGCOIGACO IGBP WMO UN-FRAMEWORK CONVENTION ON CC CEOS IDEALLY: THE WIDTH OF THE TRIANGLE REPRESENTS THE LEVEL OF RESOURCES APPLIED WMO-GAW CO2 Light Aircraft Profiles CO2 Commercial Aircraft CO2 Satellites Surface Flask CO2 Surface Continuous CO2 Routine Ocean PCO2 Msmts IGACO-GHG

18. 18 Evergreen Workshop 19-20 January 2006 KNMI, de Bilt Netherlands The Role Of The World Meteorological Organization (WMO)  As the lead agency designated by IGOS to implement IGACO, WMO shall use its unique international experience, programmes and partnerships to build a generally accepted global plan and to promote implementation through bottom-up research efforts at the national and regional level.  IGACO builds on GAW, other WMO programmes and partnerships. It bridges surface-based, aircraft and satellite observations to the weather forecast and modelling research community.

19. IGACO Implementation:Top-Down Meets Bottom-up Examples of IGACO-relevant national, regional, international activities: Satellite-Programmes IAGOS/MOZAIC IMPROVENATCHEM GEMS ACCENT WMO/GAWNDSCEANETEMEPAERONET BSRN IGACO-LRTAP/Air Quality Secretariat: TBD GAW/UN_ECE LRTAP IGACO-GHG Cimate Forcing Secretariat:TBD GAW/IGCO/NOAA Implementation Team Co-Chairs WMO/GAW & ESA IGACO-Ozone U. Trop/Strat. Chem Secretariat: FMI GAW/IOC WMO IGACO- Aerosols Climate Chem. Interaction Secretariat:TBD GAW/NASA/TBD GEOSS Other WMO Programmes WWW, Space and Co- sponsored GCOS, WCRP IGOS Cross Cutting Issues Thematic Foci Observational Systems Assimilation & Modeling Product Delivery & Databases Quality Assurance & Validation

20. 20 Evergreen Workshop 19-20 January 2006 KNMI, de Bilt Netherlands Upcoming Cross- Cutting Events  24-26 Oct., 2005, EMPA Zurich Joint WMO/GAW-ACCENT Workshop on the Global Tropospheric Carbon Monoxide Observations System, Quality Assurance and Applications, contact Jorg Klausen, L. Barrie, G. Braathen  Jan or Feb 2006 A WMO/GAW Experts Workshop On Global Long Term Measurements Of Volatile Organic Compounds (VOCs)  24-26 April 2006 WMO Geneva “Chemical Data Assimilation in Atmospheric Forecast and Re-analysis Models An ACCENT/WMO Expert Workshop in support of IGACO”, contacts are P. Borrell, and L. Barrie.

21. 21 Evergreen Workshop 19-20 January 2006 KNMI, de Bilt Netherlands THANK YOU WMO