Equatorial Kelvin wave signatures in ozone profile measurements from Global Ozone Monitoring Experiment (GOME)
Identifieur interne : 001B05 ( Main/Exploration ); précédent : 001B04; suivant : 001B06Equatorial Kelvin wave signatures in ozone profile measurements from Global Ozone Monitoring Experiment (GOME)
Auteurs : R. M. A. Timmermans [Pays-Bas] ; R. F. Van Oss [Pays-Bas] ; H. M. Kelder [Pays-Bas]Source :
- Journal of Geophysical Research: Atmospheres [ 0148-0227 ] ; 2005-11-16.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Ozone.
English descriptors
- KwdEn :
Abstract
This study investigates the ability to derive height‐resolved information on equatorial Kelvin wave activity from three different Global Ozone Monitoring Experiment (GOME) ozone profile data sets. The ozone profiles derived using the Ozone Profile Retrieval Algorithm (OPERA) based on optimal estimation and the Neural Network Ozone Retrieval System (NNORSY) both show Kelvin wave signals in agreement with previously identified signals in the GOME total ozone columns. However, because of the inadequate vertical resolution, these two data sets are not able to resolve the vertical structure of the Kelvin wave activity. The third data set, consisting of assimilated OPERA ozone profiles, does provide height‐resolved information on Kelvin wave activity that is consistent with results from the analysis of GOME total ozone columns and ECMWF Re‐Analysis (ERA‐40) temperature data. Largest Kelvin‐wave‐induced perturbations of up to 0.69 DU/km coincide with the maximum vertical gradient in ozone around 35 hPa and show an in‐phase relationship with temperature perturbations in ERA‐40 as expected from theoretical considerations. These results indicate that the ozone perturbations in the lower stratosphere and in the total column of ozone are transport related. Between 10 and 1 hPa, large Kelvin‐wave‐induced fluctuations in ozone mixing ratio are present that, however, because of their small contribution to the total column, do not constitute a large contribution to the total ozone column perturbations. The ozone perturbations between 10 and 1 hPa show an out‐of‐phase relationship with temperature perturbations in ERA‐40, indicating that the perturbations can either be caused by transport effects or photochemical influences.
Url:
DOI: 10.1029/2005JD005929
Affiliations:
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M. A." last="Timmermans">R. M. A. Timmermans</name><affiliation wicri:level="1"><country xml:lang="fr">Pays-Bas</country><wicri:regionArea>Royal Netherlands Meteorological Institute, De Bilt</wicri:regionArea><wicri:noRegion>De Bilt</wicri:noRegion></affiliation><affiliation wicri:level="1"><country xml:lang="fr" wicri:curation="lc">Pays-Bas</country><wicri:regionArea>Now at Environment, Health, and Safety, Netherlands Organisation for Applied Scientific Research TNO, Apeldoorn</wicri:regionArea><wicri:noRegion>Apeldoorn</wicri:noRegion></affiliation><affiliation><wicri:noCountry code="no comma">E-mail: rensket@gmail.com</wicri:noCountry></affiliation></author><author><name sortKey="Van Oss, R F" sort="Van Oss, R F" uniqKey="Van Oss R" first="R. F." last="Van Oss">R. F. Van Oss</name><affiliation wicri:level="1"><country xml:lang="fr">Pays-Bas</country><wicri:regionArea>Royal Netherlands Meteorological Institute, De Bilt</wicri:regionArea><wicri:noRegion>De Bilt</wicri:noRegion></affiliation></author><author><name sortKey="Kelder, H M" sort="Kelder, H M" uniqKey="Kelder H" first="H. M." last="Kelder">H. M. Kelder</name><affiliation wicri:level="1"><country xml:lang="fr">Pays-Bas</country><wicri:regionArea>Royal Netherlands Meteorological Institute, De Bilt</wicri:regionArea><wicri:noRegion>De Bilt</wicri:noRegion></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Pays-Bas</country><wicri:regionArea>Department of Applied Physics, Eindhoven University of Technology, Eindhoven</wicri:regionArea><wicri:noRegion>Eindhoven</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Geophysical Research: Atmospheres</title><title level="j" type="abbrev">J. Geophys. Res.</title><idno type="ISSN">0148-0227</idno><idno type="eISSN">2156-2202</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><date type="published" when="2005-11-16">2005-11-16</date><biblScope unit="volume">110</biblScope><biblScope unit="issue">D21</biblScope><biblScope unit="page" from="n/a">n/a</biblScope><biblScope unit="page" to="n/a">n/a</biblScope></imprint><idno type="ISSN">0148-0227</idno></series><idno type="istex">80E0A270F90F0547162F2BAE65BA92E5C726F032</idno><idno type="DOI">10.1029/2005JD005929</idno><idno type="ArticleID">2005JD005929</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0148-0227</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Height</term><term>Kelvin wave</term><term>Mixing ratio</term><term>Optimal estimation</term><term>Perturbation</term><term>Total ozone content</term><term>Vertical gradient</term><term>experimental studies</term><term>fluctuations</term><term>global</term><term>monitoring</term><term>neural networks</term><term>ozone</term><term>stratosphere</term><term>temperature</term><term>transport</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Contenu total ozone</term><term>Estimation optimale</term><term>Etude expérimentale</term><term>Fluctuation</term><term>Gradient vertical</term><term>Hauteur</term><term>Monde</term><term>Onde Kelvin</term><term>Ozone</term><term>Perturbation</term><term>Rapport mélange</term><term>Réseau neuronal</term><term>Stratosphère</term><term>Surveillance</term><term>Température</term><term>Transport</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Ozone</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">This study investigates the ability to derive height‐resolved information on equatorial Kelvin wave activity from three different Global Ozone Monitoring Experiment (GOME) ozone profile data sets. The ozone profiles derived using the Ozone Profile Retrieval Algorithm (OPERA) based on optimal estimation and the Neural Network Ozone Retrieval System (NNORSY) both show Kelvin wave signals in agreement with previously identified signals in the GOME total ozone columns. However, because of the inadequate vertical resolution, these two data sets are not able to resolve the vertical structure of the Kelvin wave activity. The third data set, consisting of assimilated OPERA ozone profiles, does provide height‐resolved information on Kelvin wave activity that is consistent with results from the analysis of GOME total ozone columns and ECMWF Re‐Analysis (ERA‐40) temperature data. Largest Kelvin‐wave‐induced perturbations of up to 0.69 DU/km coincide with the maximum vertical gradient in ozone around 35 hPa and show an in‐phase relationship with temperature perturbations in ERA‐40 as expected from theoretical considerations. These results indicate that the ozone perturbations in the lower stratosphere and in the total column of ozone are transport related. Between 10 and 1 hPa, large Kelvin‐wave‐induced fluctuations in ozone mixing ratio are present that, however, because of their small contribution to the total column, do not constitute a large contribution to the total ozone column perturbations. The ozone perturbations between 10 and 1 hPa show an out‐of‐phase relationship with temperature perturbations in ERA‐40, indicating that the perturbations can either be caused by transport effects or photochemical influences.</div></front></TEI><affiliations><list><country><li>Pays-Bas</li></country></list><tree><country name="Pays-Bas"><noRegion><name sortKey="Timmermans, R M A" sort="Timmermans, R M A" uniqKey="Timmermans R" first="R. M. A." last="Timmermans">R. M. A. Timmermans</name></noRegion><name sortKey="Kelder, H M" sort="Kelder, H M" uniqKey="Kelder H" first="H. M." last="Kelder">H. M. Kelder</name><name sortKey="Kelder, H M" sort="Kelder, H M" uniqKey="Kelder H" first="H. M." last="Kelder">H. M. Kelder</name><name sortKey="Timmermans, R M A" sort="Timmermans, R M A" uniqKey="Timmermans R" first="R. M. A." last="Timmermans">R. M. A. Timmermans</name><name sortKey="Van Oss, R F" sort="Van Oss, R F" uniqKey="Van Oss R" first="R. F." last="Van Oss">R. F. Van Oss</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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