Observation of large and all-season ozone losses over the tropics
This paper reveals a large and all-season ozone hole in the lower stratosphere over the tropics (30°N–30°S) existing since the 1980s, where an O3 hole is defined as an area of O3 loss larger than 25% compared with the undisturbed atmosphere. The depth of this tropical O3 hole is comparable to that o...
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ftdoajarticles:oai:doaj.org/article:f99ea16758d24022aa52d4b6ff048f3f 2023-05-15T13:48:37+02:00 Observation of large and all-season ozone losses over the tropics Qing-Bin Lu 2022-07-01T00:00:00Z https://doi.org/10.1063/5.0094629 https://doaj.org/article/f99ea16758d24022aa52d4b6ff048f3f EN eng AIP Publishing LLC http://dx.doi.org/10.1063/5.0094629 https://doaj.org/toc/2158-3226 2158-3226 doi:10.1063/5.0094629 https://doaj.org/article/f99ea16758d24022aa52d4b6ff048f3f AIP Advances, Vol 12, Iss 7, Pp 075006-075006-12 (2022) Physics QC1-999 article 2022 ftdoajarticles https://doi.org/10.1063/5.0094629 2022-12-30T21:12:21Z This paper reveals a large and all-season ozone hole in the lower stratosphere over the tropics (30°N–30°S) existing since the 1980s, where an O3 hole is defined as an area of O3 loss larger than 25% compared with the undisturbed atmosphere. The depth of this tropical O3 hole is comparable to that of the well-known springtime Antarctic O3 hole, whereas its area is about seven times that of the latter. Similar to the Antarctic O3 hole, approximately 80% of the normal O3 value is depleted at the center of the tropical O3 hole. The results strongly indicate that both Antarctic and tropical O3 holes must arise from an identical physical mechanism, for which the cosmic-ray-driven electron reaction model shows good agreement with observations. The whole-year large tropical O3 hole could cause a great global concern as it can lead to increases in ground-level ultraviolet radiation and affect 50% of the Earth’s surface area, which is home to approximately 50% of the world’s population. Moreover, the presence of the tropical and polar O3 holes is equivalent to the formation of three “temperature holes” observed in the stratosphere. These findings will have significances in understanding planetary physics, ozone depletion, climate change, and human health. Article in Journal/Newspaper Antarc* Antarctic Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic Genes 13 8 1354 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Physics QC1-999 |
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Physics QC1-999 Qing-Bin Lu Observation of large and all-season ozone losses over the tropics |
topic_facet |
Physics QC1-999 |
description |
This paper reveals a large and all-season ozone hole in the lower stratosphere over the tropics (30°N–30°S) existing since the 1980s, where an O3 hole is defined as an area of O3 loss larger than 25% compared with the undisturbed atmosphere. The depth of this tropical O3 hole is comparable to that of the well-known springtime Antarctic O3 hole, whereas its area is about seven times that of the latter. Similar to the Antarctic O3 hole, approximately 80% of the normal O3 value is depleted at the center of the tropical O3 hole. The results strongly indicate that both Antarctic and tropical O3 holes must arise from an identical physical mechanism, for which the cosmic-ray-driven electron reaction model shows good agreement with observations. The whole-year large tropical O3 hole could cause a great global concern as it can lead to increases in ground-level ultraviolet radiation and affect 50% of the Earth’s surface area, which is home to approximately 50% of the world’s population. Moreover, the presence of the tropical and polar O3 holes is equivalent to the formation of three “temperature holes” observed in the stratosphere. These findings will have significances in understanding planetary physics, ozone depletion, climate change, and human health. |
format |
Article in Journal/Newspaper |
author |
Qing-Bin Lu |
author_facet |
Qing-Bin Lu |
author_sort |
Qing-Bin Lu |
title |
Observation of large and all-season ozone losses over the tropics |
title_short |
Observation of large and all-season ozone losses over the tropics |
title_full |
Observation of large and all-season ozone losses over the tropics |
title_fullStr |
Observation of large and all-season ozone losses over the tropics |
title_full_unstemmed |
Observation of large and all-season ozone losses over the tropics |
title_sort |
observation of large and all-season ozone losses over the tropics |
publisher |
AIP Publishing LLC |
publishDate |
2022 |
url |
https://doi.org/10.1063/5.0094629 https://doaj.org/article/f99ea16758d24022aa52d4b6ff048f3f |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
AIP Advances, Vol 12, Iss 7, Pp 075006-075006-12 (2022) |
op_relation |
http://dx.doi.org/10.1063/5.0094629 https://doaj.org/toc/2158-3226 2158-3226 doi:10.1063/5.0094629 https://doaj.org/article/f99ea16758d24022aa52d4b6ff048f3f |
op_doi |
https://doi.org/10.1063/5.0094629 |
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13 |
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8 |
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1354 |
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1766249520258088960 |