1 Evergreen Workshop 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 Search Engine “GAW” 

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

4 Evergreen Workshop 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 Evergreen Workshop January 2006 KNMI, de Bilt Netherlands

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

Timeline Diagram Carbon Dioxide

The IGACO System Components

9 Evergreen Workshop 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 Evergreen Workshop 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 Evergreen Workshop 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

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 Evergreen Workshop 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)

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

15 Evergreen Workshop January 2006 KNMI, de Bilt Netherlands All Data Available From GAW World Data Centre For Greenhouse Gases

16 Evergreen Workshop January 2006 KNMI, de Bilt Netherlands

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 Evergreen Workshop 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.

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 Evergreen Workshop January 2006 KNMI, de Bilt Netherlands Upcoming Cross- Cutting Events  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)  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 Evergreen Workshop January 2006 KNMI, de Bilt Netherlands THANK YOU WMO