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Oxygen isotope composition of stratospheric carbon dioxide
Author(s) -
Lämmerzahl Peter,
Röckmann Thomas,
Brenninkmeijer Carl A. M.,
Krankowsky Dieter,
Mauersberger Konrad
Publication year - 2002
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2001gl014343
Subject(s) - stratosphere , isotope , middle latitudes , ozone , atmospheric sciences , carbon dioxide , isotopes of oxygen , oxygen , latitude , environmental science , anomaly (physics) , oxygen 18 , atmosphere (unit) , isotopes of carbon , geology , chemistry , meteorology , physics , organic chemistry , geochemistry , quantum mechanics , geodesy , condensed matter physics
Heavy oxygen isotope enrichment in stratospheric CO 2 has been identified in the past as a direct result of the large O 3 isotope anomaly though no simultaneous measurements are known. Results from 8 stratospheric balloon flights at two latitudes are reported that provide now a complete oxygen isotope analysis of both gases. An unambiguous, very tight correlation between enrichments of 17 O and 18 O in CO 2 has been found. The large ratio δ 17 O/δ 18 O of 1.71 ± 0.03 shows a faster transfer of 17 O than of 18 O into CO 2 and establishes a standard throughout the lower and middle stratosphere between midlatitudes and high northern latitudes. Ozone isotope transfer can now be treated in models with reliable atmospheric data.