On the relationship between total ozone and atmospheric dynamics and chemistry at mid-latitudes - Part 2: The effects of the El Nino/Southern Oscillation, volcanic eruptions and contributions of atmospheric dynamics and chemistry to long-term total ozone changes
We present the first spatial analysis of "fingerprints" of the El Niño/Southern Oscillation (ENSO) and atmospheric aerosol load after major volcanic eruptions (El Chichón and Mt. Pinatubo) in extreme low and high (termed ELOs and EHOs, respectively) and mean values of total ozone for the n...
Main Authors: | , , , , , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus
2013
|
Subjects: | |
Online Access: | https://hdl.handle.net/20.500.11850/63956 https://doi.org/10.3929/ethz-b-000063956 |
id |
ftethz:oai:www.research-collection.ethz.ch:20.500.11850/63956 |
---|---|
record_format |
openpolar |
spelling |
ftethz:oai:www.research-collection.ethz.ch:20.500.11850/63956 2023-05-15T13:53:55+02:00 On the relationship between total ozone and atmospheric dynamics and chemistry at mid-latitudes - Part 2: The effects of the El Nino/Southern Oscillation, volcanic eruptions and contributions of atmospheric dynamics and chemistry to long-term total ozone changes Rieder, Harald E. Frossard, L. Ribatet, Mathieu Staehelin, Johannes Maeder, Joerg A. Di Rocco, Stefania Davison, Anthony C. Peter, Thomas Weihs, Philipp Holawe, Franz 2013 application/application/pdf https://hdl.handle.net/20.500.11850/63956 https://doi.org/10.3929/ethz-b-000063956 en eng Copernicus info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-13-165-2013 info:eu-repo/semantics/altIdentifier/wos/000313513700011 http://hdl.handle.net/20.500.11850/63956 doi:10.3929/ethz-b-000063956 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/3.0/ Creative Commons Attribution 3.0 Unported CC-BY Atmospheric Chemistry and Physics, 13 (1) info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2013 ftethz https://doi.org/20.500.11850/63956 https://doi.org/10.3929/ethz-b-000063956 https://doi.org/10.5194/acp-13-165-2013 2023-02-13T00:45:02Z We present the first spatial analysis of "fingerprints" of the El Niño/Southern Oscillation (ENSO) and atmospheric aerosol load after major volcanic eruptions (El Chichón and Mt. Pinatubo) in extreme low and high (termed ELOs and EHOs, respectively) and mean values of total ozone for the northern and southern mid-latitudes (defined as the region between 30° and 60° north and south, respectively). Significant influence on ozone extremes was found for the warm ENSO phase in both hemispheres during spring, especially towards low latitudes, indicating the enhanced ozone transport from the tropics to the extra-tropics. Further, the results confirm findings of recent work on the connection between the ENSO phase and the strength and extent of the southern ozone "collar". For the volcanic eruptions the analysis confirms findings of earlier studies for the northern mid-latitudes and gives new insights for the Southern Hemisphere. The results provide evidence that the negative effect of the eruption of El Chichón might be partly compensated by a strong warm ENSO phase in 1982–1983 at southern mid-latitudes. The strong west-east gradient in the coefficient estimates for the Mt. Pinatubo eruption and the analysis of the relationship between the AAO and ENSO phase, the extent and the position of the southern ozone "collar" and the polar vortex structure provide clear evidence for a dynamical "masking" of the volcanic signal at southern mid-latitudes. The paper also analyses the contribution of atmospheric dynamics and chemistry to long-term total ozone changes. Here, quite heterogeneous results have been found on spatial scales. In general the results show that EESC and the 11-yr solar cycle can be identified as major contributors to long-term ozone changes. However, a strong contribution of dynamical features (El Niño/Southern Oscillation (ENSO), North Atlantic Oscillation (NAO), Antarctic Oscillation (AAO), Quasi-Biennial Oscillation (QBO)) to ozone variability and trends is found at a regional level. For the QBO (at 30 ... Article in Journal/Newspaper Antarc* Antarctic North Atlantic North Atlantic oscillation ETH Zürich Research Collection Antarctic |
institution |
Open Polar |
collection |
ETH Zürich Research Collection |
op_collection_id |
ftethz |
language |
English |
description |
We present the first spatial analysis of "fingerprints" of the El Niño/Southern Oscillation (ENSO) and atmospheric aerosol load after major volcanic eruptions (El Chichón and Mt. Pinatubo) in extreme low and high (termed ELOs and EHOs, respectively) and mean values of total ozone for the northern and southern mid-latitudes (defined as the region between 30° and 60° north and south, respectively). Significant influence on ozone extremes was found for the warm ENSO phase in both hemispheres during spring, especially towards low latitudes, indicating the enhanced ozone transport from the tropics to the extra-tropics. Further, the results confirm findings of recent work on the connection between the ENSO phase and the strength and extent of the southern ozone "collar". For the volcanic eruptions the analysis confirms findings of earlier studies for the northern mid-latitudes and gives new insights for the Southern Hemisphere. The results provide evidence that the negative effect of the eruption of El Chichón might be partly compensated by a strong warm ENSO phase in 1982–1983 at southern mid-latitudes. The strong west-east gradient in the coefficient estimates for the Mt. Pinatubo eruption and the analysis of the relationship between the AAO and ENSO phase, the extent and the position of the southern ozone "collar" and the polar vortex structure provide clear evidence for a dynamical "masking" of the volcanic signal at southern mid-latitudes. The paper also analyses the contribution of atmospheric dynamics and chemistry to long-term total ozone changes. Here, quite heterogeneous results have been found on spatial scales. In general the results show that EESC and the 11-yr solar cycle can be identified as major contributors to long-term ozone changes. However, a strong contribution of dynamical features (El Niño/Southern Oscillation (ENSO), North Atlantic Oscillation (NAO), Antarctic Oscillation (AAO), Quasi-Biennial Oscillation (QBO)) to ozone variability and trends is found at a regional level. For the QBO (at 30 ... |
format |
Article in Journal/Newspaper |
author |
Rieder, Harald E. Frossard, L. Ribatet, Mathieu Staehelin, Johannes Maeder, Joerg A. Di Rocco, Stefania Davison, Anthony C. Peter, Thomas Weihs, Philipp Holawe, Franz |
spellingShingle |
Rieder, Harald E. Frossard, L. Ribatet, Mathieu Staehelin, Johannes Maeder, Joerg A. Di Rocco, Stefania Davison, Anthony C. Peter, Thomas Weihs, Philipp Holawe, Franz On the relationship between total ozone and atmospheric dynamics and chemistry at mid-latitudes - Part 2: The effects of the El Nino/Southern Oscillation, volcanic eruptions and contributions of atmospheric dynamics and chemistry to long-term total ozone changes |
author_facet |
Rieder, Harald E. Frossard, L. Ribatet, Mathieu Staehelin, Johannes Maeder, Joerg A. Di Rocco, Stefania Davison, Anthony C. Peter, Thomas Weihs, Philipp Holawe, Franz |
author_sort |
Rieder, Harald E. |
title |
On the relationship between total ozone and atmospheric dynamics and chemistry at mid-latitudes - Part 2: The effects of the El Nino/Southern Oscillation, volcanic eruptions and contributions of atmospheric dynamics and chemistry to long-term total ozone changes |
title_short |
On the relationship between total ozone and atmospheric dynamics and chemistry at mid-latitudes - Part 2: The effects of the El Nino/Southern Oscillation, volcanic eruptions and contributions of atmospheric dynamics and chemistry to long-term total ozone changes |
title_full |
On the relationship between total ozone and atmospheric dynamics and chemistry at mid-latitudes - Part 2: The effects of the El Nino/Southern Oscillation, volcanic eruptions and contributions of atmospheric dynamics and chemistry to long-term total ozone changes |
title_fullStr |
On the relationship between total ozone and atmospheric dynamics and chemistry at mid-latitudes - Part 2: The effects of the El Nino/Southern Oscillation, volcanic eruptions and contributions of atmospheric dynamics and chemistry to long-term total ozone changes |
title_full_unstemmed |
On the relationship between total ozone and atmospheric dynamics and chemistry at mid-latitudes - Part 2: The effects of the El Nino/Southern Oscillation, volcanic eruptions and contributions of atmospheric dynamics and chemistry to long-term total ozone changes |
title_sort |
on the relationship between total ozone and atmospheric dynamics and chemistry at mid-latitudes - part 2: the effects of the el nino/southern oscillation, volcanic eruptions and contributions of atmospheric dynamics and chemistry to long-term total ozone changes |
publisher |
Copernicus |
publishDate |
2013 |
url |
https://hdl.handle.net/20.500.11850/63956 https://doi.org/10.3929/ethz-b-000063956 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic North Atlantic North Atlantic oscillation |
genre_facet |
Antarc* Antarctic North Atlantic North Atlantic oscillation |
op_source |
Atmospheric Chemistry and Physics, 13 (1) |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-13-165-2013 info:eu-repo/semantics/altIdentifier/wos/000313513700011 http://hdl.handle.net/20.500.11850/63956 doi:10.3929/ethz-b-000063956 |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/3.0/ Creative Commons Attribution 3.0 Unported |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/20.500.11850/63956 https://doi.org/10.3929/ethz-b-000063956 https://doi.org/10.5194/acp-13-165-2013 |
_version_ |
1766259394762244096 |