Batenburg agu 2012_11_26
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Global scale observations of δD(H 2 ) 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
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Transcript of Batenburg agu 2012_11_26
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
H2 sources and sinks
Intro
ductio
n
H2 budget with isotope signatures
Intro
ductio
n
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)
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The EUROHYDROS network
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und
sta
tion t
ime
seri
esTime series
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und
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tion t
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Highlight: Alert
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Latitudinal gradients
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Relative sink contribution
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)
Ob
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ons
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the T
PIn the stratosphere
Röckmann et al. (2003)
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PIn the stratosphere
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the T
PIn the stratosphere
Rahn et al. (2003)
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the T
PIn the stratosphere
Result of stratospheric processing:
• H2 mixing ratio changes little
• δD increases dramatically.
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PStratospheric input
Pieterse et al., Atmos. Chem. Phys., 11, 7001-7026, 2011
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PGeographical coverage
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PExample: Caracas flights
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PStratospheric samples
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PStratospheric samples
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the T
PStratospheric samples
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PMonsoon samples
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
Latest TM5 results
δD
(H2) in
mod
els
Isotope data help in distinguishing between different plausible scenariosPieterse et al., Reassessing the variability in atmospheric H2 using the two-way nested TM5 model, submitted to JGR
Improved budget
δD
(H2) in
models
Future H2 use and leakage
Intro
ductio
n
Isotope δ notation
Intro
ductio
n
Th
e
δD
(H2)
valu
e
rep
rese
nt
s the
deu
teriu
m-to
-h
yd
rog
en
ra
tio in
th
e H
2 re
lativ
e
to a
sta
nd
ard
(V
ien
na
Sta
nd
ard
M
ean
O
cean
W
ate
r (V
SM
OW
)).
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the T
P
CARIBIC measurement container Mass 1.5 ton Deployment monthly
Air inlet system Permanent part
Airbus A 340-600
D-AIHE
Cargo door
Monsoon samplesO
bse
rvati
on
s aro
un
d t
he T
P
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