Flask network A 2 3 Multiple species measurement

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Flask network (A 2. 3) Multiple species measurement What is expected from A 2.

Flask network (A 2. 3) Multiple species measurement What is expected from A 2. 3 for reaching the Carbo. Europe IP ultimate goals? How far are we? What needs to be done? Activity 2. 3 Team Carbo. Europe-IP Meeting, Posen, Poland, 7 -12 Oktober, 2007

General Objectives 2. 3. 2. 2 To develop innovative methodologies using Carbon Cycle related

General Objectives 2. 3. 2. 2 To develop innovative methodologies using Carbon Cycle related tracers and isotopes to attribute the CO 2 concentration in the European air shed to each of the constituent parts of the fluxes: fossil, oceanic, and terrestrial (MO 8). • Means to achieve objective (Activities 2. 2; 2. 3; 2. 5; 2. 6): • Multiple species in situ measurements on tall towers • Flask air sampling for multiple species analysis at ground stations and aircrafts • Quality control program (intercomparisons; calibrations) to integrate atmospheric multiple species • measurements from different laboratories • Radiocarbon and CO measurements to separate the fossil fuel component

Objectives (5 yr plan) • O 2. 3. 1: To operate a unified co-operative

Objectives (5 yr plan) • O 2. 3. 1: To operate a unified co-operative European network of weekly flask sampling sites distributed among five laboratories. • O 2. 3. 2: To use flask multiple-species information to apportion the European carbon balance into components: fossil, air-sea exchange and terrestrial. • O 2. 3. 3: To develop new innovative and improvement of already existing analytical methods for measurements such as Ar/N 2 (an ideal transport tracer over land); NMHC (a pollution tracer) and 13 C in CH 4 (tracer of methane sources).

Objectives (5 yr plan) • O 2. 3. 1: To operate an unified co-operative

Objectives (5 yr plan) • O 2. 3. 1: To operate an unified co-operative European network of weekly flask sampling sites distributed among five laboratories. • O 2. 3. 2: To use flask multiple-species information to apportion the European carbon balance into components: fossil, air-sea exchange and terrestrial. • O 2. 3. 3: To develop new innovative and improvement of already existing analytical methods for measurements such as Ar/N 2 (an ideal transport tracer over land); NMHC (a pollution tracer) and 13 C in CH 4 (tracer of methane sources).

The running flask network O 2. 3. 1: (NOAA sites not included)

The running flask network O 2. 3. 1: (NOAA sites not included)

How far are we?

How far are we?

Comparison for CO 2 (flask, online) at JFJ

Comparison for CO 2 (flask, online) at JFJ

Comparison of CO 2 flask records

Comparison of CO 2 flask records

Comparison of O 2 flask records Bern scale Jena scale Groningen scale

Comparison of O 2 flask records Bern scale Jena scale Groningen scale

Valentino et al. , in press

Valentino et al. , in press

In our view those changes can neither be explained by increased fossil fuel emissions

In our view those changes can neither be explained by increased fossil fuel emissions nor by a changing biospheric activity. We favour a strong influence from the Atlantic ocean, most probably pentadal or decadal variations of circulation combined with heat storage variations. Valentino et al. , in press

Jungfraujoch footprint (5 days BTraj, 5 Traj. every 4 hour) S. Nottelmann, EMPA 2007

Jungfraujoch footprint (5 days BTraj, 5 Traj. every 4 hour) S. Nottelmann, EMPA 2007

Measurements on Jungfraujoch, Switzerland S. Nottelmann, EMPA 2007

Measurements on Jungfraujoch, Switzerland S. Nottelmann, EMPA 2007

Measurements on Jungfraujoch, Switzerland S. Nottelmann, EMPA 2007

Measurements on Jungfraujoch, Switzerland S. Nottelmann, EMPA 2007

Measurements on Jungfraujoch, Switzerland S. Nottelmann, EMPA 2007

Measurements on Jungfraujoch, Switzerland S. Nottelmann, EMPA 2007

Measurements on Jungfraujoch, Switzerland S. Nottelmann, EMPA 2007

Measurements on Jungfraujoch, Switzerland S. Nottelmann, EMPA 2007

Measurements on Jungfraujoch, Switzerland S. Nottelmann, EMPA 2007

Measurements on Jungfraujoch, Switzerland S. Nottelmann, EMPA 2007

Measurements on Jungfraujoch, Switzerland S. Nottelmann, EMPA 2007

Measurements on Jungfraujoch, Switzerland S. Nottelmann, EMPA 2007

Measurements on Jungfraujoch, Switzerland S. Nottelmann, EMPA 2007

Measurements on Jungfraujoch, Switzerland S. Nottelmann, EMPA 2007

Measurements on Jungfraujoch, Switzerland S. Nottelmann, EMPA 2007

Measurements on Jungfraujoch, Switzerland S. Nottelmann, EMPA 2007

Conclusions and the future…: • Network is running but sometimes with rather poor data

Conclusions and the future…: • Network is running but sometimes with rather poor data coverage due to ? ? ? • Flask air measurements help to verify the calibration of continuously recorded values. • In principle multi-species measurements on the same air sample allows us to disentangle processes and quantify their contributions, but the data resolution is critical in this regard. • Data resolution is also a critical issue for trend amplitude determinations as shown on Sunday during the trend meeting. • I urge people to look not only at their own data, but to use others data and work with them to reach a synthesis until next year. Thank you for your attention