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
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
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)
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)
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. Latest TM5 results
Isotope data help in
δD(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
28. 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)).
29. CARIBIC measurement container
Mass 1.5 ton Deployment monthly
Observations around the TP
Cargo door
Airbus
A 340-600
D-AIHE
Air inlet system
Permanent part