Participants RIVM UV/O3 BIRA + Belgian User Support and Operation centre (ESA) NILU Evergreen: verify emissions through IM, PROMOTE Uni Leister: GMES-GATO , data provider, integrated systems WMO IGACO Uni Heidelberg: products for radiation budget, GHG’s from

satellites Uni Bremen: GHG’s, EVERGREEN, data provider EC/JRC: KP policy

(Potential) User SegmentKP and MP National and International emission inventory agencies: Parties to

Conventions Industrial entities/ Industrial research organization / Inversion Modelling / Data assimilation research community

KP / GHG’s Biochemical Cycles research community

Researches are usually providers and users (project based. CARBO-EUROPE)

Research policy makers Climate change research

MP / UV Biomedical community (exposure habits) Paint companies, L’Oreal, … Agricultural effect on crops Voluntary (tourism) + involuntary outdoor people: public information/forecast

Public Awareness

User Needs (1)KP and MP Anthropogenic emissions for verification of bottom-up official data:

country scale Inverse Modelling / Data Assimilation (emissions + concentrations)

Will need integrated observations (satellite products + ground + A/C)

KP Land-Use & Land-Use Change & Forestry

C-sink Clean Development Mechanisme Emissions

Aerosol fields to do atmospheric corrections in retrievals of GHG’s ? Averaged optical properties (from ground-based & satellites)

Post-Kyoto Integrate with conventional pollutants (aerosols, O3, …)

MP / UV Concentration measurements: Strat O3, CFC’s, HFC’s Aerosol fields, cloud fields, tropospheric trace gasses O3, NO2 for UV Surface albedo (e.g. snow) for UV forecast,

Atmospheric Chemistry Applications Workshop ESTEC 20-21 January 2004-

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1989 1992 1997

Monitoring De- & Reforestation

User Needs (1)KP and MP Anthropogenic emissions for verification of bottom-up official data:

country scale Inverse Modelling / Data Assimilation (emissions + concentrations)

Will need integrated observations (satellite products + ground + A/C)

KP Land-Use & Land-Use Change & Forestry

C-sink Clean Development Mechanisme Emissions

Aerosol fields to do atmospheric corrections in retrievals of GHG’s ? Averaged optical properties (from ground-based & satellites)

Post-Kyoto Integrate with conventional pollutants (aerosols, O3, …)

MP / UV Concentration measurments: Strat O3, CFC’s, HFC’s Aerosol fields, cloud fields, tropospheric trace gasses O3, NO2 for UV Surface albedo (e.g. snow) for UV forecast,

User Needs (2)

Biogeochemical cycle studies Estimation of biogenic & anthropogenic emissions and sinks Oceanic/Terrestrial Stocks (e.g. forests)

GCOS: atmospheric composition, essential climate variables for UNFCCC

IGACO: science driven !GMES-GATO:

Atmospheric Chemistry Applications Workshop ESTEC 20-21 January 2004-

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 Chemical species  Air Quality

 Oxidation Capacity

 Climate   Stratospheric Stratospheric Ozone Ozone

DepletionDepletion

O3

CO

UV-A j(NO2)

UV-B j(O3)

H2O (water vapour)

HCHO

C2H6

active nitrogen: NOx = NO+NO2

reservoir species: HNO3

SO2

active halogens: BrO, ClO, OClOreservoir species: HCl, ClONO2

sources: CH3Br, CFC-12, CFC-11, HCFC-22

aerosol optical properties

CO2

CH4

Atmospheric Chemistry Applications Workshop ESTEC 20-21 January 2004-

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Atmospheric species in Group 1 to be measured by an integrated global observing system

Atmospheric region Requirement Unit H2O O3 CH4 CO2 CO NO2 BrO ClO HCl CFC-12 1 x km 5/25 <5/50 10/50 10/500 10/250 10/250 50

Lower z km 0.1/1 0.5/2 2/3 0.5/2 0.5/2 0.5/3 2 troposphere t 1 hr 1 hr 2 hr 2 hr 2 hr 1 hr 1 hr 10 d

precision % 1/10 3/20 1/5 0.2/1 1/20 10/30 10 2* trueness % 2/15 5/20 2/10 1/2 2/25 15/40 15 4* delay (1)/(2) (1)/(2) (1)/(2) (1)/(2) (1)/(2) (1) (2)

2 x km 20/100 10/100 50/250 50/500 10/250 30/250 z km 0.5/2 0.5/2 2/4 1/2 1/4 0.5/3 Upper

troposphere t 1 hr 1 hr 2 hr 2 hr 2 hr 1 hr precision % 2/20 3/20 1/10 0.5/2 1/20 10/30 N/R trueness % 2/20 5/30 2/20 1/2 2/25 15/40 N/R delay (1)/(2) (1)/(2) (1)/(2) (1)/(2) (1)/(2) (1)

3 x km 50/200 50/100 50/250 250/500 50/250 30/250 100 100 50/250 1000 z km 1/3 0.5/3 2/4 1/4 2/5 1/4 1 1 1/4 Lower

stratosphere t 1 d 1 d 6-12 hr 1 d 1 d 6-12 hr 6 hr 6 hr 6-12 hr 10 d precision % 5/20 3/15 2/20 1/2 5/15 10/30 10 10 5/10 6 trueness % 5/20 5/20 5/30 1/2 10/25 15/40 15 15 15 15 delay (1)/(2) (1)/(2) (1)/(2) (2)/(3) (2)/(3) (1) (2) (2)

4 x km 50/200 50/100 50/250 250/500 100/500 30/250 100 100 50/250 z km 2/5 0.5/3 2/4 2/4 3/10 1/4 1 1 1/4 Upper

stratosphere, t 1 d 1 d 1 d 1 d 1 d 1 d 1 d 1 d 1 d mesosphere precision % 5/20 3/15 2/4 1/2 10/20 10/30 10 10 5/10

trueness % 5/20 5/20 5/30 1/2 10/25 15/40 20 20 15 delay (1)/(2) (1)/(2) (1)/(2) (2)/(3) (2)/(3) (1)/(2) (2) (2)

5 x km 50/200 10/50 10/250 50/500 10/250 30/250 100 100 30/250 1000 t 1 d 1 d 12 hr 1 d 1 d 12 hr 12 hr 12 hr 6-12 10 d Total

column precision % 0.5/2 1/5 1/5 0.5/1 1/10 1/10 10 10 4 4 trueness % 1/3 2/5 2/10 1/2 2/20 2/20 15 15 6 10 delay (1)/(2) (1)/(2) (1)/(2) (2)/(3) (1)/(2) (1) (2)

x km 10/200 10/50 10/50 10/500 10/250 10/250 25 1000 6 Tropospheric t 1 hr 1 hr 2 hr 2 hr 2 hr 1 hr 1 hr 10 d

column precision % 0.5/2 5/15 1/5 0.5/1 2/20 1/10 4 trueness % 1/3 5/15 2/10 1/2 5/25 2/10 10 delay (1)/(2) (1)/(2) (1)/(2) (1)/(2) (1)/(2) (1)

Atmospheric Chemistry Applications Workshop ESTEC 20-21 January 2004-

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Theme

Unit

Aerosol Optical Depth

(VIS+IR)

Aerosol Extinction Coefficient

(VIS)

Aerosol Absorption

Optical Depth (VIS)

PM1, PM2.5, PM10

a, d x km 1 / 10 10 / 100 1 / 10 N/A

Climate z km N/A 0.5 / 1 N/A N/A

studies t global daily global weekly global daily N/A and precision 0.005 / 0.01 0.005 / 0.01 km-1 0.002 / 0.01 N/A

oxidizing trueness 0.01 / 0.02 0.01 / 0.02 km-1 0.004 / 0.02 N/A capacity delay weeks weeks weeks N/A

b x km 0.25 / 1 0.5 / 2 N/A 0.25 / 1

Air z km N/A 0.1 in PBL N/A 0.1 in PBL quality t regional hourly regional daily N/A regional sub-daily

(PBL and precision 0.005 / 0.01 0.005 / 0.01 km-1 N/A 1 / 10 µ g m-3 free trop) trueness 0.01 / 0.02 0.01 / 0.02 km-1 N/A 1 / 10 µ g m-3

delay near real-time near real-time N/A near real-time c x km 10 / 100 10 / 100 N/A N/A

Ozone z km N/A 1 / 2 N/A N/A depletion t 10 d 10 d N/A N/A (UT/LS) precision 10-5 / 10-4 10-6 / 10-5 km-1 N/A N/A

trueness 10-5 / 10-4 10-6 / 10-5 km-1 N/A N/A delay days days N/A N/A

Target and Threshold Requirements for Aerosol