Activity 2.3 Team CarboEurope-IP Meeting, Posen, Poland, 7-12 Oktober, 2007 Flask network (A 2.3) Multiple species measurement What is expected from A.

Activity 2.3 Team

CarboEurope-IP Meeting, Posen, Poland, 7-12 Oktober, 2007

Flask network (A 2.3)Multiple species measurement

What is expected from A 2.3 for reaching the CarboEurope IP ultimate goals? How far are we?

What needs to be done?

2.3.2.2To develop innovative methodologies using Carbon Cycle related tracers and isotopes to attribute the CO2 concentration in the European air shed to each of the constituent parts of the fluxes: fossil, oceanic, and terrestrial (MO8).

• 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

General Objectives

Objectives (5 yr plan)

• O2.3.1: To operate a unified co-operative European network of weekly flask sampling sites distributed among five laboratories.

• O2.3.2: To use flask multiple-species information to apportion the European carbon balance into components: fossil, air-sea exchange and terrestrial.

• O2.3.3: To develop new innovative and improvement of already existing analytical methods for measurements such as Ar/N2 (an ideal transport tracer over land); NMHC (a pollution tracer) and 13C in CH4 (tracer of methane sources).

Objectives (5 yr plan)

• O2.3.1: To operate an unified co-operative European network of weekly flask sampling sites distributed among five laboratories.

• O2.3.2: To use flask multiple-species information to apportion the European carbon balance into components: fossil, air-sea exchange and terrestrial.

• O2.3.3: To develop new innovative and improvement of already existing analytical methods for measurements such as Ar/N2 (an ideal transport tracer over land); NMHC (a pollution tracer) and 13C in CH4 (tracer of methane sources).

The running flask network

O2.3.1: (NOAA sites not included)

How far are we?

Comparison for CO2 (flask, online) at JFJ

Comparison of CO2 flask records

2000 2002 2004 2006 2008tim e

350

360

370

380

390

400

CO

2 (p

pm

)

g rif d a ta 8 0 0

g rif h a rm 8 0 0

g rif d a ta 3 1 0 0

g rif h a rm 3 1 0 0

p d d d a ta

p d d h a rm

ma ce h e a d d a ta

ma ce h e a d h a rm

jf j d a ta

jf j h a rm

sh e tl d a ta

sh e tl h a rm

d a ta lu t

h a rm lu t

Comparison of O2 flask records

2000 2002 2004 2006 2008tim e

-100

0

100

200

300

400

500

O2/N

2 (

per

me

g)

-600

-500

-400

-300

-200

-100

0

g rif 8 0 0 d a ta

g rif 8 0 0 h a rm

p d d d a ta

p d d h a rmg rif 3 1 0 0 d a ta

g rif 3 1 0 0 h a rm

sh e tl d a ta

sh e tl h a rm

jfj data

jfj harm

-300

-200

-100

0

100

200

300

d a ta mh

h a rm mhlu t d a ta

lu t h a rm

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 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.

Jungfraujoch footprint (5 days BTraj, 5 Traj. every 4 hour)

S. Nottelmann, EMPA 2007

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

• 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 and 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

Conclusions and the future…: