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Signature of Arctic surface ozone depletion events in the isotope anomaly (Δ17O) of atmospheric nitrate
Arctic surface ozone isotope anomaly atmospheric nitrate
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2008/12/3
We report the first measurements of the oxygen isotope anomaly of atmospheric inorganic nitrate from the Arctic. Nitrate samples and complementary data were collected at Alert, Nunavut, Canada (82°30 ...
Investigations of the photochemical isotope equilibrium between O2, CO2 and O3
photochemical isotope equilibrium O2 CO2 O3
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2008/11/28
Contrary to tropospheric CO2 whose oxygen isotopic composition follows a standard mass dependent relationship, i.e. δ17O~0.5δ18O, stratospheric CO2 is preferentially enriched in 17O, leading to a stri...
Long-term observation of mass-independent oxygen isotope anomaly in stratospheric CO2
mass-independent oxygen isotope anomaly stratospheric CO2
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2008/11/24
Stratospheric and upper tropospheric air samples were collected during 1994–2004 over Sanriku, Japan and in 1997 over Kiruna, Sweden. Using these archived air samples, we determined the triple oxygen-...
Uniform climate development between the subtropical and subpolar Northeast Atlantic across marine isotope stage 11
climate development subpolar Northeast Atlantic marine isotope
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2008/10/31
Proxy records from a core site off Northwest Africa were generated and compared with data from the subpolar Northeast Atlantic to unravel some main climatic features of interglacial marine isotope sta...
Hydrogen isotope fractionation in the photolysis of formaldehyde
Hydrogen isotope fractionation in the photolysis of formaldehyde
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2008/10/31
Experiments investigating the isotopic fractionation in the formation of H2 by the photolysis of CH2O under tropospheric conditions are reported and discussed. The deuterium (D) depletion in the H2 pr...