Analysis of the breakdown of the Antarctic circumpolar vortex using TOMS ozone data
Climatological analysis of data from the Total Ozone Mapping Spectrometer (TOMS) on the Nimbus 7 satellite has shown that the annual cycles of ozone are very different in the Arctic and Antarctic. The annual cycle in the Arctic is a relatively smooth annual sine wave; but in the Antarctic the circum...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19880004397 2023-05-15T13:35:11+02:00 Analysis of the breakdown of the Antarctic circumpolar vortex using TOMS ozone data Bowman, Kenneth P. Unclassified, Unlimited, Publicly available Dec 1, 1987 application/pdf http://hdl.handle.net/2060/19880004397 unknown Document ID: 19880004397 Accession ID: 88N13779 http://hdl.handle.net/2060/19880004397 No Copyright CASI ENVIRONMENT POLLUTION NASA. Goddard Space Flight Center, Scientific and Operational Requirements for TOMS Data; p 12-13 1987 ftnasantrs 2015-03-15T06:16:47Z Climatological analysis of data from the Total Ozone Mapping Spectrometer (TOMS) on the Nimbus 7 satellite has shown that the annual cycles of ozone are very different in the Arctic and Antarctic. The annual cycle in the Arctic is a relatively smooth annual sine wave; but in the Antarctic the circumpolar vortex breaks down rapidly during the Southern Hemisphere spring (September through November), producing a rapid rise in total ozone and a sawtooth-shaped annual cycle. The evolution of the Antarctic total ozone field during the vortex breakdown was studied by computing areally-integrated ozone amounts from the TOMS data. This technique avoids substantial difficulties with using zonally-averaged ozone amounts to study the asymmetric breakdown phenomenon. Variability of total ozone is found to be large both within an individual year and between different years. During the last decade monthly-mean total ozone values in the Antarctic during the springtime vortex breakdown period have decreased dramatically. The ozone-area statistics indicate that the decrease has resulted in part from changes in the timing of the vortex breakdown and resultant ozone increase, which have occurred later during recent years. Analysis of the spatial scales involved in the ozone transport and mixing that occur during the vortex breakdown is now underway. Reliable calculation of diagnostic quantities like areally-integrated ozone is possible only with the high-resolution, two-dimensional, daily coverage provided by the TOMS instrument. Other/Unknown Material Antarc* Antarctic Arctic NASA Technical Reports Server (NTRS) Arctic Antarctic The Antarctic |
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NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
ENVIRONMENT POLLUTION |
spellingShingle |
ENVIRONMENT POLLUTION Bowman, Kenneth P. Analysis of the breakdown of the Antarctic circumpolar vortex using TOMS ozone data |
topic_facet |
ENVIRONMENT POLLUTION |
description |
Climatological analysis of data from the Total Ozone Mapping Spectrometer (TOMS) on the Nimbus 7 satellite has shown that the annual cycles of ozone are very different in the Arctic and Antarctic. The annual cycle in the Arctic is a relatively smooth annual sine wave; but in the Antarctic the circumpolar vortex breaks down rapidly during the Southern Hemisphere spring (September through November), producing a rapid rise in total ozone and a sawtooth-shaped annual cycle. The evolution of the Antarctic total ozone field during the vortex breakdown was studied by computing areally-integrated ozone amounts from the TOMS data. This technique avoids substantial difficulties with using zonally-averaged ozone amounts to study the asymmetric breakdown phenomenon. Variability of total ozone is found to be large both within an individual year and between different years. During the last decade monthly-mean total ozone values in the Antarctic during the springtime vortex breakdown period have decreased dramatically. The ozone-area statistics indicate that the decrease has resulted in part from changes in the timing of the vortex breakdown and resultant ozone increase, which have occurred later during recent years. Analysis of the spatial scales involved in the ozone transport and mixing that occur during the vortex breakdown is now underway. Reliable calculation of diagnostic quantities like areally-integrated ozone is possible only with the high-resolution, two-dimensional, daily coverage provided by the TOMS instrument. |
format |
Other/Unknown Material |
author |
Bowman, Kenneth P. |
author_facet |
Bowman, Kenneth P. |
author_sort |
Bowman, Kenneth P. |
title |
Analysis of the breakdown of the Antarctic circumpolar vortex using TOMS ozone data |
title_short |
Analysis of the breakdown of the Antarctic circumpolar vortex using TOMS ozone data |
title_full |
Analysis of the breakdown of the Antarctic circumpolar vortex using TOMS ozone data |
title_fullStr |
Analysis of the breakdown of the Antarctic circumpolar vortex using TOMS ozone data |
title_full_unstemmed |
Analysis of the breakdown of the Antarctic circumpolar vortex using TOMS ozone data |
title_sort |
analysis of the breakdown of the antarctic circumpolar vortex using toms ozone data |
publishDate |
1987 |
url |
http://hdl.handle.net/2060/19880004397 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Arctic Antarctic The Antarctic |
geographic_facet |
Arctic Antarctic The Antarctic |
genre |
Antarc* Antarctic Arctic |
genre_facet |
Antarc* Antarctic Arctic |
op_source |
CASI |
op_relation |
Document ID: 19880004397 Accession ID: 88N13779 http://hdl.handle.net/2060/19880004397 |
op_rights |
No Copyright |
_version_ |
1766062098972934144 |