Analysis of a southern sub-polar short-term ozone variation event using a millimetre-wave radiometer
Subpolar regions in the Southern Hemisphere are influenced by the Antarctic polar vortex during austral spring, which induces high and short-term ozone variability at different altitudes, mainly into the stratosphere. This variation may affect considerably the total ozone column changing the harmful...
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ftconicet:oai:ri.conicet.gov.ar:11336/117872 2023-10-09T21:47:09+02:00 Analysis of a southern sub-polar short-term ozone variation event using a millimetre-wave radiometer Orte, Pablo Facundo Wolfram, Elian Augusto Salvador, Jacobo Omar Mizuno, Akira Bègue, Nelson Bencherif, Hassan Bali, Juan Lucas D'Elia, Raul Pazmiño, Andrea Godin Beekmann, Sophie Ohyama, Hirofumi Quiroga, Jonathan Javier application/pdf http://hdl.handle.net/11336/117872 eng eng Copernicus Publications info:eu-repo/semantics/altIdentifier/doi/10.5194/angeo-37-613-2019 info:eu-repo/semantics/altIdentifier/url/https://angeo.copernicus.org/articles/37/613/2019/ http://hdl.handle.net/11336/117872 Orte, Pablo Facundo; Wolfram, Elian Augusto; Salvador, Jacobo Omar; Mizuno, Akira; Bègue, Nelson; et al.; Analysis of a southern sub-polar short-term ozone variation event using a millimetre-wave radiometer; Copernicus Publications; Annales Geophysicae; 37; 4; 7-2019; 613-629 0992-7689 1432-0576 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ sensado remoto agujero de ozono vortice polar https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.5194/angeo-37-613-2019 2023-09-24T20:21:04Z Subpolar regions in the Southern Hemisphere are influenced by the Antarctic polar vortex during austral spring, which induces high and short-term ozone variability at different altitudes, mainly into the stratosphere. This variation may affect considerably the total ozone column changing the harmful UV radiation that reaches the surface. With the aim of studying ozone with a high time resolution at different altitudes in subpolar regions, a millimetre-wave radiometer (MWR) was installed at the Observatorio Atmosférico de la Patagonia Austral (OAPA), Río Gallegos, Argentina (51.6∘ S, 69.3∘ W), in 2011. This instrument provides ozone profiles with a time resolution of ∼1 h, which enables studies of short-term ozone mixing ratio variability from 25 to ∼70 km in altitude. This work presents the MWR ozone observations between October 2014 and 2015, focusing on an atypical event of the polar vortex and Antarctic ozone hole influence over Río Gallegos detected from the MWR measurements at 27 and 37 km during November of 2014. During the event, the MWR observations at both altitudes show a decrease in ozone followed by a local peak of ozone amount of the order of hours. This local recovery is observed thanks to the high time resolution of the MWR mentioned. The advected potential vorticity (APV) calculated from the MIMOSA high-resolution advection model (Modélisation Isentrope du transport Méso-échelle de l'Ozone Stratosphérique par Advection) was also analysed at two isentropic levels (levels of constant potential temperature) of 675 and 950 K (∼27 and ∼37 km of altitude, respectively) to understand and explain the dynamics at both altitudes and correlate the ozone rapid recovery with the passage of a tongue with low PV values over Río Gallegos. In addition, the MWR dataset was compared for the first time with measurements obtained from the Microwave Limb Sounder (MLS) at individual altitude levels (27, 37 and 65 km) and with the differential absorption lidar (DIAL) installed in the OAPA to analyse the correspondence ... Article in Journal/Newspaper Antarc* Antarctic CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic The Antarctic Austral Patagonia Argentina Observatorio ENVELOPE(-62.993,-62.993,-64.330,-64.330) Gallegos ENVELOPE(-67.150,-67.150,-68.133,-68.133) Annales Geophysicae 37 4 613 629 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
sensado remoto agujero de ozono vortice polar https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
sensado remoto agujero de ozono vortice polar https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Orte, Pablo Facundo Wolfram, Elian Augusto Salvador, Jacobo Omar Mizuno, Akira Bègue, Nelson Bencherif, Hassan Bali, Juan Lucas D'Elia, Raul Pazmiño, Andrea Godin Beekmann, Sophie Ohyama, Hirofumi Quiroga, Jonathan Javier Analysis of a southern sub-polar short-term ozone variation event using a millimetre-wave radiometer |
topic_facet |
sensado remoto agujero de ozono vortice polar https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
Subpolar regions in the Southern Hemisphere are influenced by the Antarctic polar vortex during austral spring, which induces high and short-term ozone variability at different altitudes, mainly into the stratosphere. This variation may affect considerably the total ozone column changing the harmful UV radiation that reaches the surface. With the aim of studying ozone with a high time resolution at different altitudes in subpolar regions, a millimetre-wave radiometer (MWR) was installed at the Observatorio Atmosférico de la Patagonia Austral (OAPA), Río Gallegos, Argentina (51.6∘ S, 69.3∘ W), in 2011. This instrument provides ozone profiles with a time resolution of ∼1 h, which enables studies of short-term ozone mixing ratio variability from 25 to ∼70 km in altitude. This work presents the MWR ozone observations between October 2014 and 2015, focusing on an atypical event of the polar vortex and Antarctic ozone hole influence over Río Gallegos detected from the MWR measurements at 27 and 37 km during November of 2014. During the event, the MWR observations at both altitudes show a decrease in ozone followed by a local peak of ozone amount of the order of hours. This local recovery is observed thanks to the high time resolution of the MWR mentioned. The advected potential vorticity (APV) calculated from the MIMOSA high-resolution advection model (Modélisation Isentrope du transport Méso-échelle de l'Ozone Stratosphérique par Advection) was also analysed at two isentropic levels (levels of constant potential temperature) of 675 and 950 K (∼27 and ∼37 km of altitude, respectively) to understand and explain the dynamics at both altitudes and correlate the ozone rapid recovery with the passage of a tongue with low PV values over Río Gallegos. In addition, the MWR dataset was compared for the first time with measurements obtained from the Microwave Limb Sounder (MLS) at individual altitude levels (27, 37 and 65 km) and with the differential absorption lidar (DIAL) installed in the OAPA to analyse the correspondence ... |
format |
Article in Journal/Newspaper |
author |
Orte, Pablo Facundo Wolfram, Elian Augusto Salvador, Jacobo Omar Mizuno, Akira Bègue, Nelson Bencherif, Hassan Bali, Juan Lucas D'Elia, Raul Pazmiño, Andrea Godin Beekmann, Sophie Ohyama, Hirofumi Quiroga, Jonathan Javier |
author_facet |
Orte, Pablo Facundo Wolfram, Elian Augusto Salvador, Jacobo Omar Mizuno, Akira Bègue, Nelson Bencherif, Hassan Bali, Juan Lucas D'Elia, Raul Pazmiño, Andrea Godin Beekmann, Sophie Ohyama, Hirofumi Quiroga, Jonathan Javier |
author_sort |
Orte, Pablo Facundo |
title |
Analysis of a southern sub-polar short-term ozone variation event using a millimetre-wave radiometer |
title_short |
Analysis of a southern sub-polar short-term ozone variation event using a millimetre-wave radiometer |
title_full |
Analysis of a southern sub-polar short-term ozone variation event using a millimetre-wave radiometer |
title_fullStr |
Analysis of a southern sub-polar short-term ozone variation event using a millimetre-wave radiometer |
title_full_unstemmed |
Analysis of a southern sub-polar short-term ozone variation event using a millimetre-wave radiometer |
title_sort |
analysis of a southern sub-polar short-term ozone variation event using a millimetre-wave radiometer |
publisher |
Copernicus Publications |
url |
http://hdl.handle.net/11336/117872 |
long_lat |
ENVELOPE(-62.993,-62.993,-64.330,-64.330) ENVELOPE(-67.150,-67.150,-68.133,-68.133) |
geographic |
Antarctic The Antarctic Austral Patagonia Argentina Observatorio Gallegos |
geographic_facet |
Antarctic The Antarctic Austral Patagonia Argentina Observatorio Gallegos |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/angeo-37-613-2019 info:eu-repo/semantics/altIdentifier/url/https://angeo.copernicus.org/articles/37/613/2019/ http://hdl.handle.net/11336/117872 Orte, Pablo Facundo; Wolfram, Elian Augusto; Salvador, Jacobo Omar; Mizuno, Akira; Bègue, Nelson; et al.; Analysis of a southern sub-polar short-term ozone variation event using a millimetre-wave radiometer; Copernicus Publications; Annales Geophysicae; 37; 4; 7-2019; 613-629 0992-7689 1432-0576 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
op_doi |
https://doi.org/10.5194/angeo-37-613-2019 |
container_title |
Annales Geophysicae |
container_volume |
37 |
container_issue |
4 |
container_start_page |
613 |
op_container_end_page |
629 |
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1779309962678239232 |