Reconstruction of the constituent distribution and trends in the Antarctic polar vortex from ER-2 flight observations
The measurements of ozone, ClO, and N2O concentrations in the south polar region taken aboard the ER-2 aircraft during the Airborne Antarctic Ozone Experiment are analyzed using conservative coordinate transformations to potential temperature-N2O and potential temperature-potential vorticity space....
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ftnasantrs:oai:casi.ntrs.nasa.gov:19900031900 2023-05-15T14:04:33+02:00 Reconstruction of the constituent distribution and trends in the Antarctic polar vortex from ER-2 flight observations Schoeberl, Mark R. Lait, Leslie R. Newman, Paul A. Martin, Russell L. Proffitt, Michael H. Hartmann, Dennis L. Loewenstein, Max Podolske, James Strahan, Susan E. Gary, Bruce Unclassified, Unlimited, Publicly available Nov 30, 1989 http://ntrs.nasa.gov/search.jsp?R=19900031900 unknown http://ntrs.nasa.gov/search.jsp?R=19900031900 Accession ID: 90A18955 Copyright Other Sources 46 Journal of Geophysical Research; 94; 16815-16 1989 ftnasantrs 2012-02-15T18:24:27Z The measurements of ozone, ClO, and N2O concentrations in the south polar region taken aboard the ER-2 aircraft during the Airborne Antarctic Ozone Experiment are analyzed using conservative coordinate transformations to potential temperature-N2O and potential temperature-potential vorticity space. The latter transformation is equivalent to interpreting trace species observations within the modified Lagrangian mean (MLM) coordinate system. The results show that the MLM transformed ozone concentration decreases at about 0.06 ppmv per day between 20- and 16-km altitude inside the polar vortex during the mid-August to mid-September period. These ozone changes are collocated with the region of high ClO concentration. Outside the chemically perturbed region, at the highest aircraft altitudes, ozone concentration systematically increases, suggesting a diabatic cooling of the order 0.3-0.6 K/day. Other/Unknown Material Antarc* Antarctic NASA Technical Reports Server (NTRS) Antarctic The Antarctic |
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NASA Technical Reports Server (NTRS) |
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ftnasantrs |
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unknown |
topic |
46 |
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46 Schoeberl, Mark R. Lait, Leslie R. Newman, Paul A. Martin, Russell L. Proffitt, Michael H. Hartmann, Dennis L. Loewenstein, Max Podolske, James Strahan, Susan E. Gary, Bruce Reconstruction of the constituent distribution and trends in the Antarctic polar vortex from ER-2 flight observations |
topic_facet |
46 |
description |
The measurements of ozone, ClO, and N2O concentrations in the south polar region taken aboard the ER-2 aircraft during the Airborne Antarctic Ozone Experiment are analyzed using conservative coordinate transformations to potential temperature-N2O and potential temperature-potential vorticity space. The latter transformation is equivalent to interpreting trace species observations within the modified Lagrangian mean (MLM) coordinate system. The results show that the MLM transformed ozone concentration decreases at about 0.06 ppmv per day between 20- and 16-km altitude inside the polar vortex during the mid-August to mid-September period. These ozone changes are collocated with the region of high ClO concentration. Outside the chemically perturbed region, at the highest aircraft altitudes, ozone concentration systematically increases, suggesting a diabatic cooling of the order 0.3-0.6 K/day. |
format |
Other/Unknown Material |
author |
Schoeberl, Mark R. Lait, Leslie R. Newman, Paul A. Martin, Russell L. Proffitt, Michael H. Hartmann, Dennis L. Loewenstein, Max Podolske, James Strahan, Susan E. Gary, Bruce |
author_facet |
Schoeberl, Mark R. Lait, Leslie R. Newman, Paul A. Martin, Russell L. Proffitt, Michael H. Hartmann, Dennis L. Loewenstein, Max Podolske, James Strahan, Susan E. Gary, Bruce |
author_sort |
Schoeberl, Mark R. |
title |
Reconstruction of the constituent distribution and trends in the Antarctic polar vortex from ER-2 flight observations |
title_short |
Reconstruction of the constituent distribution and trends in the Antarctic polar vortex from ER-2 flight observations |
title_full |
Reconstruction of the constituent distribution and trends in the Antarctic polar vortex from ER-2 flight observations |
title_fullStr |
Reconstruction of the constituent distribution and trends in the Antarctic polar vortex from ER-2 flight observations |
title_full_unstemmed |
Reconstruction of the constituent distribution and trends in the Antarctic polar vortex from ER-2 flight observations |
title_sort |
reconstruction of the constituent distribution and trends in the antarctic polar vortex from er-2 flight observations |
publishDate |
1989 |
url |
http://ntrs.nasa.gov/search.jsp?R=19900031900 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19900031900 Accession ID: 90A18955 |
op_rights |
Copyright |
_version_ |
1766275740520677376 |