Batenburg bbos2011

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Presentation given at Buys Ballot OnderzoeksSchool Autumn Symposium, Oranjewoud (Friesland, the Netherlands) October 2011. This material is now published as a discussion paper on http://www.atmos-chem-phys-discuss.net/12/589/2012/acpd-12-589-2012.html.

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“ The stable isotopic composition of atmospheric H 2 ; at the ground and in the lowermost stratosphere (LMS) ” by Anneke M. Batenburg et al. is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. Please include a proper attribution when using this work. The material that was presented in this presentation was later published in a discussion paper in ACPD, that can be found on: http:// www.atmos-chem-phys-discuss.net /12/589/2012/acpd-12-589-2012.html

The stable isotopic composition of atmospheric H 2 ; at the ground and in the lowermost stratosphere (LMS) A.M. Batenburg and T.J. Schuck, A.K. Baker, A. Zahn, C.A.M. Brenninkmeijer of the CARIBIC project and S. Walter, G. Pieterse, T. R öckmann of IMAU

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Isotope δ -notation The δ (D,H 2 ) value represents the deuterium-to-hydrogen ratio in the H 2 relative to a standard (Vienna Standard Mean Ocean Water (VSMOW))

Isotopic source signatures Isotopes can be used to gain information about different sources and sinks.

The EUROHYDROS network Batenburg et al., 2011 http://www.atmos-chem-phys.net/11/6985/2011/acp-11-6985-2011.html

Stratospheric H 2 cycle CH 4 H 2 H 2 O Source: Hydrocarbon oxidation Enriched in D Sink: Oxidation by OH Preferentially removes H Result of stratospheric processing: H 2 mixing ratio changes little, while δ D increases dramatically.

Stratospheric input Pieterse et al., 2011 http://www.atmos-chem-phys.net/11/7001/2011/acp-11-7001-2011.html

CARIBIC measurement container Mass 1.5 ton Deployment monthly Air inlet system Permanent part Airbus A 340-600 D-AIHE Cargo door

Stratospheric samples δ D(H 2 ) `mirrors’ methane

Summary ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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1. “ The stable isotopic composition of atmospheric H 2 ; at the ground and in the lowermost stratosphere (LMS) ” by Anneke M. Batenburg et al. is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. Please include a proper attribution when using this work. The material that was presented in this presentation was later published in a discussion paper in ACPD, that can be found on: http:// www.atmos-chem-phys-discuss.net /12/589/2012/acpd-12-589-2012.html

2. The stable isotopic composition of atmospheric H 2 ; at the ground and in the lowermost stratosphere (LMS) A.M. Batenburg and T.J. Schuck, A.K. Baker, A. Zahn, C.A.M. Brenninkmeijer of the CARIBIC project and S. Walter, G. Pieterse, T. R öckmann of IMAU

4. The atmospheric H 2 budget

5. Effects of a Hydrogen Economy

6. Isotope δ -notation The δ (D,H 2 ) value represents the deuterium-to-hydrogen ratio in the H 2 relative to a standard (Vienna Standard Mean Ocean Water (VSMOW))

7. Isotopic source signatures Isotopes can be used to gain information about different sources and sinks.

9. The EUROHYDROS network Batenburg et al., 2011 http://www.atmos-chem-phys.net/11/6985/2011/acp-11-6985-2011.html

10. EUROHYDROS data

11. EUROHYDROS data

12.

13. Stratospheric H 2 cycle CH 4 H 2 H 2 O Source: Hydrocarbon oxidation Enriched in D Sink: Oxidation by OH Preferentially removes H Result of stratospheric processing: H 2 mixing ratio changes little, while δ D increases dramatically.

14. Stratospheric input Pieterse et al., 2011 http://www.atmos-chem-phys.net/11/7001/2011/acp-11-7001-2011.html

15. CARIBIC measurement container Mass 1.5 ton Deployment monthly Air inlet system Permanent part Airbus A 340-600 D-AIHE Cargo door

16. Sampling locations

17. Example: Caracas flights

18. Stratospheric samples δ D(H 2 ) `mirrors’ methane

19. Stratospheric correlations

20.

21.

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- Linked to methane cycle - Large uncertainties exist in the global H 2 budget - Expected `Hydrogen economy ’ Expected leakage assumptions from Tromp: All current technologies based on oil or gasoline combustion replaced by H2 fuel cells 10 to 20% leakage
Adapt tp Pieterse values BB signature is likely more depleted. Hydrogen has large isotope effects (large relative mass difference) -> Isotopic analysis is a useful tool to constrain sources and sinks
Maybe remove/correct title. Add coords?

Batenburg bbos2011

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Batenburg bbos2011

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