Antarctic Air over Southern Midlatitudes Following Vortex Breakdown in 1998
After breakdown of the Antarctic vortex, ozone-depleted air is transported to southern midlatitudes. Examination of ozonesonde profiles for Lauder, New Zealand, for the month of December 1998, suggests that the 1998 Antarctic vortex breakdown had a noticeable impact on stratospheric ozone levels abo...
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ftunivbelgradfvm:oai:vet-erinar.vet.bg.ac.rs:123456789/2433 2023-07-16T03:54:43+02:00 Antarctic Air over Southern Midlatitudes Following Vortex Breakdown in 1998 Ajtić, Jelena Connor, Brian J. Randall, Cora E. Bodeker, Gregory E. Lawrence, Bryan N. Hoppel, Karl W. Rosenfield, Joan E. Heuff, Darlene N. 2002 https://vet-erinar.vet.bg.ac.rs/handle/123456789/2433 http://veterinar.vet.bg.ac.rs/bitstream/id/6749/bitstream_6749.pdf https://hdl.handle.net/21.15107/rcub_veterinar_2433 en eng AGU https://vet-erinar.vet.bg.ac.rs/handle/123456789/2433 http://veterinar.vet.bg.ac.rs/bitstream/id/6749/bitstream_6749.pdf https://hdl.handle.net/21.15107/rcub_veterinar_2433 openAccess ARR Eos, Transactions, American Geophysical Union, 83(22), July 09–12, Wellington, New Zealand conferenceObject publishedVersion 2002 ftunivbelgradfvm 2023-06-27T16:17:47Z After breakdown of the Antarctic vortex, ozone-depleted air is transported to southern midlatitudes. Examination of ozonesonde profiles for Lauder, New Zealand, for the month of December 1998, suggests that the 1998 Antarctic vortex breakdown had a noticeable impact on stratospheric ozone levels above New Zealand. To investigate this period, diabatic reverse domain filling calculations are performed for the parcels in southern midlatitudes (30-60$^\circ$\,S, on a $1^\circ$ latitude by $1^\circ$ longitude grid). The trajectories are run back to 10 October 1998. It is assumed that the depletion processes within the vortex did not take place after this date. The parcels originating inside the vortex are labelled using potential vorticity values that define the vortex edge on 10 October 1998. Seven potential temperature surfaces are examined 400-700 K, with a 50 K difference. In the next step, the vortex parcels are initialized with depleted ozone mixing ratios. Assuming that the depleted ozone is a tracer, it is advected forward in time, and the decreases in midlatitude ozone levels due to the depletion process within the vortex, are calculated. Conference Object Antarc* Antarctic Veterinar - Repository of the Faculty of Veterinary Medicine, University of Belgrade Antarctic New Zealand The Antarctic |
institution |
Open Polar |
collection |
Veterinar - Repository of the Faculty of Veterinary Medicine, University of Belgrade |
op_collection_id |
ftunivbelgradfvm |
language |
English |
description |
After breakdown of the Antarctic vortex, ozone-depleted air is transported to southern midlatitudes. Examination of ozonesonde profiles for Lauder, New Zealand, for the month of December 1998, suggests that the 1998 Antarctic vortex breakdown had a noticeable impact on stratospheric ozone levels above New Zealand. To investigate this period, diabatic reverse domain filling calculations are performed for the parcels in southern midlatitudes (30-60$^\circ$\,S, on a $1^\circ$ latitude by $1^\circ$ longitude grid). The trajectories are run back to 10 October 1998. It is assumed that the depletion processes within the vortex did not take place after this date. The parcels originating inside the vortex are labelled using potential vorticity values that define the vortex edge on 10 October 1998. Seven potential temperature surfaces are examined 400-700 K, with a 50 K difference. In the next step, the vortex parcels are initialized with depleted ozone mixing ratios. Assuming that the depleted ozone is a tracer, it is advected forward in time, and the decreases in midlatitude ozone levels due to the depletion process within the vortex, are calculated. |
format |
Conference Object |
author |
Ajtić, Jelena Connor, Brian J. Randall, Cora E. Bodeker, Gregory E. Lawrence, Bryan N. Hoppel, Karl W. Rosenfield, Joan E. Heuff, Darlene N. |
spellingShingle |
Ajtić, Jelena Connor, Brian J. Randall, Cora E. Bodeker, Gregory E. Lawrence, Bryan N. Hoppel, Karl W. Rosenfield, Joan E. Heuff, Darlene N. Antarctic Air over Southern Midlatitudes Following Vortex Breakdown in 1998 |
author_facet |
Ajtić, Jelena Connor, Brian J. Randall, Cora E. Bodeker, Gregory E. Lawrence, Bryan N. Hoppel, Karl W. Rosenfield, Joan E. Heuff, Darlene N. |
author_sort |
Ajtić, Jelena |
title |
Antarctic Air over Southern Midlatitudes Following Vortex Breakdown in 1998 |
title_short |
Antarctic Air over Southern Midlatitudes Following Vortex Breakdown in 1998 |
title_full |
Antarctic Air over Southern Midlatitudes Following Vortex Breakdown in 1998 |
title_fullStr |
Antarctic Air over Southern Midlatitudes Following Vortex Breakdown in 1998 |
title_full_unstemmed |
Antarctic Air over Southern Midlatitudes Following Vortex Breakdown in 1998 |
title_sort |
antarctic air over southern midlatitudes following vortex breakdown in 1998 |
publisher |
AGU |
publishDate |
2002 |
url |
https://vet-erinar.vet.bg.ac.rs/handle/123456789/2433 http://veterinar.vet.bg.ac.rs/bitstream/id/6749/bitstream_6749.pdf https://hdl.handle.net/21.15107/rcub_veterinar_2433 |
geographic |
Antarctic New Zealand The Antarctic |
geographic_facet |
Antarctic New Zealand The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Eos, Transactions, American Geophysical Union, 83(22), July 09–12, Wellington, New Zealand |
op_relation |
https://vet-erinar.vet.bg.ac.rs/handle/123456789/2433 http://veterinar.vet.bg.ac.rs/bitstream/id/6749/bitstream_6749.pdf https://hdl.handle.net/21.15107/rcub_veterinar_2433 |
op_rights |
openAccess ARR |
_version_ |
1771541066342727680 |