1WMO GAW VOC Workshop 30Jan-1 Feb 2006

Global VOC Observations in the Context of the WMO

Global Atmosphere Watch (GAW) Programme

Leonard Barrie

Chief, Environment Division, WMO

Lbarrie@wmo.int

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

2WMO GAW VOC Workshop 30Jan-1 Feb 2006

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 24 Global

stations, 637 Regional stations, and 19 Contributing

IGACO Presents the reason and need for Global

Atmospheric Chemistry Observations Targets 13 variable groups including

reactive gases. Assesses past, current and expected

state of observing system for each target variable

Reviews requirements for observations for each target variable group

Makes 12 General Recommendations and 7 Specific Recommendations

Provides a framework for the next generation GAW programme 2008-2015

The IGACO System Components

 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

GAW Monitoring ComponentsSCIENTIFIC ADVISORY

GROUPS:AEROSOL OZONE GHGs

PRECIP-CHEM UVREACTIVE GASES

QUALITY ASSURANCE-SCIENCE ACTIVITY CENTRES

WCCs, RCCs, Projects

CENTRALCALIBRATION LABORATORIES

(World Reference Standard)

GAW STATIONS & GAWSIS

Global Regional

GAW WORLD DATA CENTRES:OZONE/UV GHGs(& Related Gases) AEROSOL PRECIP-CHEM

RADIATION

Analysis

Twinning

Workshops

Calibration, Training Site Visits, Comparisons

SynthesisIGACO

ContributingNetworks

SatelliteObservations

CAS/WG Environmental Pollution

And Atmospheric Chemistry(EPAC)

WMO/GAW Secretariat

AREP

GAW Central Calibration LaboratoryOr Calibration Strategy

Quality Assurance

GAW Target Variable

Tracking The Network & Contacts

Data Management: A World Data Archive/Analysis Centre

Expert Oversight For All Aspects of the Network (Measurement Guides, Data Quality Objectives, SOPs)

Cal. Standards

GAWTEC and Instrument Intercomparisions

GAW Calibration Centres

GAW:WDC

GAW:SAG

Capacity Building

GAWSIS

Links to Users:Generation of Products and ServicesCAS EPAC

8WMO GAW VOC Workshop 30Jan-1 Feb 2006

40

0

South Pole

Point Barrow

Mauna Loa

Alert

Pallas-Sodankylä

Minamitorishima

Kenya

Assekrem -Tamanrasset

Arembepe

Ushuaia

Izana

Amsterdam IslandCape Grim

Cape Point

Samoa

Ny Ålesund

Lauder

Mace Head

40

80

40

0

40

80

160 80 0 80 160

March 2005

Zugspitze-Hohenpeissenberg

Mt Waliguan

Neumayer Station

Bukit Koto Tabang

Jungfraujoch

GLOBAL STATIONS IN GAW

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

10WMO GAW VOC Workshop 30Jan-1 Feb 2006

SCIAMACHY HCHO 2003

(Courtesy of F. Wittrock, U. of Bremen)

12WMO GAW VOC Workshop 30Jan-1 Feb 2006

GAW Strategic Plan 2001-2007

142. Strategy for the Implementation of the Global Atmosphere Watch Programme (2001-2007), A Contribution to the Implementation of the Long-Term Plan

156. Addendum for the period 2005-2007 to the Strategy for the Implementation of the Global Atmosphere Watch Programme (2001-2007), GAW Report No. 142.

In progress is preparation of SP 2008-2015: Next Generation GAW within context of IGACO

14WMO GAW VOC Workshop 30Jan-1 Feb 2006

THANK YOU

WMO