Near-Complete Local Reduction of Arctic Stratospheric Ozone by Severe Chemical Loss in Spring 2020
In the Antarctic ozone hole, ozone mixing ratios have been decreasing to extremely low values of 0.01–0.1 ppm in nearly all spring seasons since the late 1980s, corresponding to 95–99% local chemical loss. In contrast, Arctic ozone loss has been much more limited and mixing ratios have never before...
Published in: | Geophysical Research Letters |
---|---|
Main Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2020
|
Subjects: | |
Online Access: | https://doi.org/10.1029/2020GL089547 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/9326 |
id |
ftsubggeo:oai:e-docs.geo-leo.de:11858/9326 |
---|---|
record_format |
openpolar |
spelling |
ftsubggeo:oai:e-docs.geo-leo.de:11858/9326 2023-05-15T13:42:31+02:00 Near-Complete Local Reduction of Arctic Stratospheric Ozone by Severe Chemical Loss in Spring 2020 Wohltmann, I. von der Gathen, P. Lehmann, R. Maturilli, M. Deckelmann, H. Manney, G. L. Davies, J. Tarasick, D. Jepsen, N. Kivi, R. Lyall, N. Rex, M. 2020 https://doi.org/10.1029/2020GL089547 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/9326 eng eng doi:10.1029/2020GL089547 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/9326 This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made. CC-BY-NC-ND ddc:551.9 ozone stratosphere ozone loss Arctic ozone hole temperature doc-type:article 2020 ftsubggeo https://doi.org/10.1029/2020GL089547 2022-11-09T06:51:40Z In the Antarctic ozone hole, ozone mixing ratios have been decreasing to extremely low values of 0.01–0.1 ppm in nearly all spring seasons since the late 1980s, corresponding to 95–99% local chemical loss. In contrast, Arctic ozone loss has been much more limited and mixing ratios have never before fallen below 0.5 ppm. In Arctic spring 2020, however, ozonesonde measurements in the most depleted parts of the polar vortex show a highly depleted layer, with ozone loss averaged over sondes peaking at 93% at 18 km. Typical minimum mixing ratios of 0.2 ppm were observed, with individual profiles showing values as low as 0.13 ppm (96% loss). The reason for the unprecedented chemical loss was an unusually strong, long-lasting, and cold polar vortex, showing that for individual winters the effect of the slow decline of ozone-depleting substances on ozone depletion may be counteracted by low temperatures. Article in Journal/Newspaper Antarc* Antarctic Arctic GEO-LEOe-docs (FID GEO) Arctic Antarctic The Antarctic Geophysical Research Letters 47 20 |
institution |
Open Polar |
collection |
GEO-LEOe-docs (FID GEO) |
op_collection_id |
ftsubggeo |
language |
English |
topic |
ddc:551.9 ozone stratosphere ozone loss Arctic ozone hole temperature |
spellingShingle |
ddc:551.9 ozone stratosphere ozone loss Arctic ozone hole temperature Wohltmann, I. von der Gathen, P. Lehmann, R. Maturilli, M. Deckelmann, H. Manney, G. L. Davies, J. Tarasick, D. Jepsen, N. Kivi, R. Lyall, N. Rex, M. Near-Complete Local Reduction of Arctic Stratospheric Ozone by Severe Chemical Loss in Spring 2020 |
topic_facet |
ddc:551.9 ozone stratosphere ozone loss Arctic ozone hole temperature |
description |
In the Antarctic ozone hole, ozone mixing ratios have been decreasing to extremely low values of 0.01–0.1 ppm in nearly all spring seasons since the late 1980s, corresponding to 95–99% local chemical loss. In contrast, Arctic ozone loss has been much more limited and mixing ratios have never before fallen below 0.5 ppm. In Arctic spring 2020, however, ozonesonde measurements in the most depleted parts of the polar vortex show a highly depleted layer, with ozone loss averaged over sondes peaking at 93% at 18 km. Typical minimum mixing ratios of 0.2 ppm were observed, with individual profiles showing values as low as 0.13 ppm (96% loss). The reason for the unprecedented chemical loss was an unusually strong, long-lasting, and cold polar vortex, showing that for individual winters the effect of the slow decline of ozone-depleting substances on ozone depletion may be counteracted by low temperatures. |
format |
Article in Journal/Newspaper |
author |
Wohltmann, I. von der Gathen, P. Lehmann, R. Maturilli, M. Deckelmann, H. Manney, G. L. Davies, J. Tarasick, D. Jepsen, N. Kivi, R. Lyall, N. Rex, M. |
author_facet |
Wohltmann, I. von der Gathen, P. Lehmann, R. Maturilli, M. Deckelmann, H. Manney, G. L. Davies, J. Tarasick, D. Jepsen, N. Kivi, R. Lyall, N. Rex, M. |
author_sort |
Wohltmann, I. |
title |
Near-Complete Local Reduction of Arctic Stratospheric Ozone by Severe Chemical Loss in Spring 2020 |
title_short |
Near-Complete Local Reduction of Arctic Stratospheric Ozone by Severe Chemical Loss in Spring 2020 |
title_full |
Near-Complete Local Reduction of Arctic Stratospheric Ozone by Severe Chemical Loss in Spring 2020 |
title_fullStr |
Near-Complete Local Reduction of Arctic Stratospheric Ozone by Severe Chemical Loss in Spring 2020 |
title_full_unstemmed |
Near-Complete Local Reduction of Arctic Stratospheric Ozone by Severe Chemical Loss in Spring 2020 |
title_sort |
near-complete local reduction of arctic stratospheric ozone by severe chemical loss in spring 2020 |
publishDate |
2020 |
url |
https://doi.org/10.1029/2020GL089547 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/9326 |
geographic |
Arctic Antarctic The Antarctic |
geographic_facet |
Arctic Antarctic The Antarctic |
genre |
Antarc* Antarctic Arctic |
genre_facet |
Antarc* Antarctic Arctic |
op_relation |
doi:10.1029/2020GL089547 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/9326 |
op_rights |
This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made. |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1029/2020GL089547 |
container_title |
Geophysical Research Letters |
container_volume |
47 |
container_issue |
20 |
_version_ |
1766168911044149248 |