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Stratospheric ozone isotope enrichments—Revisited
Author(s) -
Mauersberger Konrad,
Lämmerzahl Peter,
Krankowsky Dieter
Publication year - 2001
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 - 10.1029/2001gl013439
Subject(s) - stratosphere , isotope , ozone , atmospheric sciences , environmental science , ozone layer , geology , meteorology , physics , nuclear physics
Ozone isotope data for 49 O 3 and 50 O 3 are presented, that were obtained from 28 stratospheric samples collected over 10 years onboard balloon payloads. Enrichments for 49 O 3 range from 7 to 9% in the middle stratosphere. This is in very good agreement with laboratory‐derived isotope predictions. For 50 O 3 most enrichments are between 7 and 11%, a few, however, are too high to be of atmospheric origin. Arguments are presented that stratospheric ozone isotope data are consistent with enrichments determined in laboratory studies when pressure and temperature dependence of the isotope effect is included. Results from recent remote sensing experiments support the values obtained during balloon‐borne sample collections. Very high enrichments occasionally measured in the past should be disregarded.