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: | unknown |
Published: |
2020
|
Subjects: | |
Online Access: | https://epic.awi.de/id/eprint/53098/ https://epic.awi.de/id/eprint/53098/1/2020GL089547.pdf https://doi.org/10.1029/2020GL089547 https://hdl.handle.net/10013/epic.9d7ebe97-df4d-4036-b216-8e5f2f4c4b28 |
id |
ftawi:oai:epic.awi.de:53098 |
---|---|
record_format |
openpolar |
spelling |
ftawi:oai:epic.awi.de:53098 2024-09-15T17:47:06+00:00 Near complete local reduction of Arctic stratospheric ozone by severe chemical loss in spring 2020 Wohltmann, Ingo von der Gathen, Peter Lehmann, Ralph Maturilli, Marion Deckelmann, Holger Manney, G. L. Davies, J. Tarasick, D. Jepsen, N. Kivi, R. Lyall, N. Rex, Markus 2020-10-09 application/pdf https://epic.awi.de/id/eprint/53098/ https://epic.awi.de/id/eprint/53098/1/2020GL089547.pdf https://doi.org/10.1029/2020GL089547 https://hdl.handle.net/10013/epic.9d7ebe97-df4d-4036-b216-8e5f2f4c4b28 unknown https://epic.awi.de/id/eprint/53098/1/2020GL089547.pdf Wohltmann, I. orcid:0000-0003-4606-6788 , von der Gathen, P. orcid:0000-0001-7409-1556 , Lehmann, R. , Maturilli, M. orcid:0000-0001-6818-7383 , Deckelmann, H. , Manney, G. L. , Davies, J. , Tarasick, D. , Jepsen, N. , Kivi, R. , Lyall, N. and Rex, M. orcid:0000-0001-7847-8221 (2020) Near complete local reduction of Arctic stratospheric ozone by severe chemical loss in spring 2020 , Geophysical Research Letters, 47 . doi:10.1029/2020GL089547 <https://doi.org/10.1029/2020GL089547> , hdl:10013/epic.9d7ebe97-df4d-4036-b216-8e5f2f4c4b28 EPIC3Geophysical Research Letters, 47, ISSN: 0094-8276 Article isiRev 2020 ftawi https://doi.org/10.1029/2020GL089547 2024-06-24T04:26:11Z 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 Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Geophysical Research Letters 47 20 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
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, Ingo von der Gathen, Peter Lehmann, Ralph Maturilli, Marion Deckelmann, Holger Manney, G. L. Davies, J. Tarasick, D. Jepsen, N. Kivi, R. Lyall, N. Rex, Markus |
spellingShingle |
Wohltmann, Ingo von der Gathen, Peter Lehmann, Ralph Maturilli, Marion Deckelmann, Holger Manney, G. L. Davies, J. Tarasick, D. Jepsen, N. Kivi, R. Lyall, N. Rex, Markus Near complete local reduction of Arctic stratospheric ozone by severe chemical loss in spring 2020 |
author_facet |
Wohltmann, Ingo von der Gathen, Peter Lehmann, Ralph Maturilli, Marion Deckelmann, Holger Manney, G. L. Davies, J. Tarasick, D. Jepsen, N. Kivi, R. Lyall, N. Rex, Markus |
author_sort |
Wohltmann, Ingo |
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://epic.awi.de/id/eprint/53098/ https://epic.awi.de/id/eprint/53098/1/2020GL089547.pdf https://doi.org/10.1029/2020GL089547 https://hdl.handle.net/10013/epic.9d7ebe97-df4d-4036-b216-8e5f2f4c4b28 |
genre |
Antarc* Antarctic Arctic |
genre_facet |
Antarc* Antarctic Arctic |
op_source |
EPIC3Geophysical Research Letters, 47, ISSN: 0094-8276 |
op_relation |
https://epic.awi.de/id/eprint/53098/1/2020GL089547.pdf Wohltmann, I. orcid:0000-0003-4606-6788 , von der Gathen, P. orcid:0000-0001-7409-1556 , Lehmann, R. , Maturilli, M. orcid:0000-0001-6818-7383 , Deckelmann, H. , Manney, G. L. , Davies, J. , Tarasick, D. , Jepsen, N. , Kivi, R. , Lyall, N. and Rex, M. orcid:0000-0001-7847-8221 (2020) Near complete local reduction of Arctic stratospheric ozone by severe chemical loss in spring 2020 , Geophysical Research Letters, 47 . doi:10.1029/2020GL089547 <https://doi.org/10.1029/2020GL089547> , hdl:10013/epic.9d7ebe97-df4d-4036-b216-8e5f2f4c4b28 |
op_doi |
https://doi.org/10.1029/2020GL089547 |
container_title |
Geophysical Research Letters |
container_volume |
47 |
container_issue |
20 |
_version_ |
1810495726223884288 |