1Evergreen Workshop 19-20 January 2006 KNMI, de Bilt Netherlands

WMO Global Atmosphere Watch (GAW) Programme In The Context Of

Integrated Global CO2 Observations

Leonard Barrie

Chief, Environment Division, WMO

Lbarrie@wmo.int

Search Engine “GAW” www.wmo.ch/web/arep/gaw/gaw_home.html

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

3Evergreen Workshop 19-20 January 2006 KNMI, de Bilt Netherlands

A More Systematic Approach To Integration of Atmospheric

Chemistry Observations Is Needed

4Evergreen 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

• ……

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

 Chemical species  Air Quality

 Oxidation Capacity

 Climate   Stratospheric Ozone Depletion

O3

H2O (water vapour)

CO

CO2

CH4

HCHO

VOCs

N2O

NOx = NO+NO2

HNO3

SO2

BrO, ClO, OClOHCl, ClONO2

CH3Br, CF3Br, CFC-11, CFC-12, HCFC-22

aerosol optical properties

actinic flux

IGACO TARGET VARIABLE LIST

Timeline Diagram Carbon Dioxide

The IGACO System Components

9Evergreen Workshop 19-20 January 2006 KNMI, de Bilt Netherlands

What is GAW?

WMO/GAW was established 1989 by merging GO3OS 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

10Evergreen 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

11Evergreen 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

SynthesisIGACO

Analysis

GAW Global CO2 & CH4 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

WorkshopsCalibration, Training Site Visits, Comparisons

ContributingNetworks

SatelliteObservations

CAS/WG for Environmental Pollution

And Atmospheric Chemistry

WMO/GAW Secretariat

AREP

BIPM/CCQM

13Evergreen 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)

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

15Evergreen 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

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

GCOS

A Hierarchy Of Strategies, Systems, Programmes, Networks,

Related To Systematic Atmospheric CO2 Observations

GEOSS

GMES

IGOS

IGCOIGACO

IGBPWMO

UN-FRAMEWORKCONVENTION ON CC

CEOS

IDEALLY:

THE WIDTH OF THE TRIANGLE REPRESENTS

THE LEVEL OF RESOURCES APPLIED

WMO-GAWCO2 Light

Aircraft Profiles

CO2 Commercial Aircraft

CO2 Satellites

Surface Flask CO2

Surface Continuous CO2

Routine Ocean PCO2 Msmts

IGACO-GHG

18Evergreen 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.

IGACO Implementation:Top-Down Meets Bottom-up

Examples of IGACO-relevant national, regional, international activities:

Satellite-Programmes IAGOS/MOZAICIMPROVENATCHEM

GEMS ACCENT WMO/GAW NDSCEANETEMEPAERONET

BSRN

IGACO-LRTAP/Air Quality

Secretariat: TBDGAW/UN_ECE LRTAP

IGACO-GHGCimate Forcing

Secretariat:TBDGAW/IGCO/NOAA

Implementation TeamCo-Chairs

WMO/GAW & ESA

IGACO-OzoneU. Trop/Strat. ChemSecretariat: FMI

GAW/IOC

WMO

IGACO- AerosolsClimate Chem. Interaction

Secretariat:TBDGAW/NASA/TBD

GEOSS Other WMO Programmes WWW, Space and Co-

sponsored GCOS, WCRPIGOS

Cross Cutting IssuesThematic Foci

Observational Systems

Assimilation & Modeling

Product Delivery & Databases

Quality Assurance & Validation

20Evergreen 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.

21Evergreen Workshop 19-20 January 2006 KNMI, de Bilt Netherlands

THANK YOU

WMO