Batenburg agu 2012_11_26

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Presentation of 2 datasets of H2 and its isotopic composition:
- Time series from six background stations
- Dataset collected in the UTLS with a commercial aircraft

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Batenburg agu 2012_11_26

  1. 1. Global scale observations of δD(H2) Anneke M. Batenburg Gerben Pieterse, Sylvia Walter, Ingeborg Levin, Martina Schmidt, Armin Jordan, Samuel Hammer, Camille Yver,Tanja J. Schuck, Angela K. Baker, Andreas Zahn, Carl A. M. Brenninkmeijer, and Thomas Röckmann
  2. 2. Introduction H2 sources and sinks
  3. 3. H2 budget with isotope signaturesIntroduction
  4. 4. Two new δD(H2) datasets Time series from six globally distributed background stations (Batenburg et al., Atmos. Chem. Phys., 11, 6985-6999, 2011) Observations in the tropopause region (Batenburg et al., Atmos. Chem. Phys., 12, 4633-4646, 2012)
  5. 5. Background station time series The EUROHYDROS network
  6. 6. Background station time series Time series
  7. 7. Background station time series Highlight: Alert
  8. 8. Background station time series Latitudinal gradients
  9. 9. Background station time series Relative sink contribution
  10. 10. Two new δD(H2) datasets Time series from six globally distributed background stations (Batenburg et al., Atmos. Chem. Phys., 11, 6985-6999, 2011) Observations in the tropopause region (Batenburg et al., Atmos. Chem. Phys., 12, 4633-4646, 2012)
  11. 11. Observations around the TP In the stratosphere Röckmann et al. (2003)
  12. 12. Observations around the TP In the stratosphere
  13. 13. In the stratosphere Rahn et al. (2003)Observations around the TP
  14. 14. Observations around the TP In the stratosphere Result of stratospheric processing: • H2 mixing ratio changes little • δD increases dramatically.
  15. 15. Observations around the TP Stratospheric input Pieterse et al., Atmos. Chem. Phys., 11, 7001-7026, 2011
  16. 16. Observations around the TP Geographical coverage
  17. 17. Observations around the TP Example: Caracas flights
  18. 18. Observations around the TP Stratospheric samples
  19. 19. Observations around the TP Stratospheric samples
  20. 20. Observations around the TP Stratospheric samples
  21. 21. Observations around the TP Monsoon samples
  22. 22. To sum up:Ground station δD(H2) data• show variation with season and latitude.• contain source/sink information.δD(H2) data from TP region• yield better parameterization of δD(H2) in STE• may show new source over India
  23. 23. Latest TM5 results Isotope data help inδD(H2) in models distinguishing between different plausible scenarios Pieterse et al., Reassessing the variability in atmospheric H2 using the two-way nested TM5 model, submitted to JGR
  24. 24. δD(H2) in models Improved budget
  25. 25. Introduction Future H2 use and leakage
  26. 26. Introduction Isotope δ notation The δD(H2) value represents the deuterium-to- hydrogen ratio in the H2 relative to a standard (Vienna Standard Mean Ocean Water (VSMOW)).
  27. 27. CARIBIC measurement container Mass 1.5 ton Deployment monthly Observations around the TP Cargo doorAirbusA 340-600D-AIHE Air inlet system Permanent part
  28. 28. Observations around the TP Monsoon samples

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