Stratospheric ozone isotope fractionations derived from collected samples
Oxygen isotope ratios in ozone show an unusual enrichment when compared with expected values. New results are reported that have been determined from samples collected in the stratosphere on board balloons. Flights were conducted from three locations, near the equator, at middle latitudes, and in th...
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Online Access: | https://doi.org/10.1029/2006JD007855 |
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ftempa:oai:dora:empa_1916 2023-05-15T17:04:14+02:00 Stratospheric ozone isotope fractionations derived from collected samples Krankowsky, D. Lämmerzahl, P. Mauersberger, K. Janssen, C. Tuzson, B. Röckmann, T. 2007 https://doi.org/10.1029/2006JD007855 eng eng Wiley Journal of Geophysical Research D: Atmospheres--J. Geophys. Res. D--journals:1630--2169-897X--2169-8996 empa:1916 journal id: journals:1630 issn: 2169-897X e-issn: 2169-8996 ut: 000245951600001 local: 11668 scopus: 2-s2.0-34250630109 doi:10.1029/2006JD007855 Text Journal Article 2007 ftempa https://doi.org/10.1029/2006JD007855 2023-03-04T17:17:14Z Oxygen isotope ratios in ozone show an unusual enrichment when compared with expected values. New results are reported that have been determined from samples collected in the stratosphere on board balloons. Flights were conducted from three locations, near the equator, at middle latitudes, and in the polar region. To about 27 km the temperature of the atmosphere determines the isotope enrichment of the two heavy isotopes 49 O 3 and 50 O 3 above that altitude the enrichments increase more strongly. Highest values measured near the equator are 13% in 50 O 3 and 10% in 49 O 3 around 32 km, implying an additional photolysis-induced isotope effect which accounts for 1/4 of the total enrichments measured. Results above Kiruna, Sweden, show a marked increase in heavy ozone from early winter to early summer in agreement with laboratory studies which established the significance of the gas temperature during ozone production. The new data quantitatively establish an additional enrichment in heavy ozone for the upper stratosphere. It is more pronounced near the equator than at middle latitudes and was not detectable in the polar region. Article in Journal/Newspaper Kiruna DORA Empa Kiruna Journal of Geophysical Research 112 D8 |
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DORA Empa |
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language |
English |
description |
Oxygen isotope ratios in ozone show an unusual enrichment when compared with expected values. New results are reported that have been determined from samples collected in the stratosphere on board balloons. Flights were conducted from three locations, near the equator, at middle latitudes, and in the polar region. To about 27 km the temperature of the atmosphere determines the isotope enrichment of the two heavy isotopes 49 O 3 and 50 O 3 above that altitude the enrichments increase more strongly. Highest values measured near the equator are 13% in 50 O 3 and 10% in 49 O 3 around 32 km, implying an additional photolysis-induced isotope effect which accounts for 1/4 of the total enrichments measured. Results above Kiruna, Sweden, show a marked increase in heavy ozone from early winter to early summer in agreement with laboratory studies which established the significance of the gas temperature during ozone production. The new data quantitatively establish an additional enrichment in heavy ozone for the upper stratosphere. It is more pronounced near the equator than at middle latitudes and was not detectable in the polar region. |
format |
Article in Journal/Newspaper |
author |
Krankowsky, D. Lämmerzahl, P. Mauersberger, K. Janssen, C. Tuzson, B. Röckmann, T. |
spellingShingle |
Krankowsky, D. Lämmerzahl, P. Mauersberger, K. Janssen, C. Tuzson, B. Röckmann, T. Stratospheric ozone isotope fractionations derived from collected samples |
author_facet |
Krankowsky, D. Lämmerzahl, P. Mauersberger, K. Janssen, C. Tuzson, B. Röckmann, T. |
author_sort |
Krankowsky, D. |
title |
Stratospheric ozone isotope fractionations derived from collected samples |
title_short |
Stratospheric ozone isotope fractionations derived from collected samples |
title_full |
Stratospheric ozone isotope fractionations derived from collected samples |
title_fullStr |
Stratospheric ozone isotope fractionations derived from collected samples |
title_full_unstemmed |
Stratospheric ozone isotope fractionations derived from collected samples |
title_sort |
stratospheric ozone isotope fractionations derived from collected samples |
publisher |
Wiley |
publishDate |
2007 |
url |
https://doi.org/10.1029/2006JD007855 |
geographic |
Kiruna |
geographic_facet |
Kiruna |
genre |
Kiruna |
genre_facet |
Kiruna |
op_relation |
Journal of Geophysical Research D: Atmospheres--J. Geophys. Res. D--journals:1630--2169-897X--2169-8996 empa:1916 journal id: journals:1630 issn: 2169-897X e-issn: 2169-8996 ut: 000245951600001 local: 11668 scopus: 2-s2.0-34250630109 doi:10.1029/2006JD007855 |
op_doi |
https://doi.org/10.1029/2006JD007855 |
container_title |
Journal of Geophysical Research |
container_volume |
112 |
container_issue |
D8 |
_version_ |
1766058290341478400 |