Climate dependencies and deterministic variability in stratospheric dynamics and ozone [Elektronische Ressource] / vorgelegt von Rudolf Deckert

Rudolf Deckert

Description

Climate Dependencies and DeterministicVariability in Stratospheric Dynamics and OzoneDissertationder Fakultat¨ fur¨ Physik derLudwig-Maximilians-Universitat¨ Munc¨ henvorgelegt von Rudolf Deckertaus Wasserburg am InnMunchen, 21. Dezember 2007¨1. Gutachter: Prof. Dr. Martin Dameris, LMU Munchen¨2.hter: Prof. Dr. Olaf Kruger,¨ LMU Munc¨ henTag der mundlichen Prufungen: 17. Juni 2008¨ ¨AbstractEstimates of the ozone layer future evolution must consider both climate de-pendencies and interannual variability. These considerations imply analyses oftransient-scenario realisations with chemistry-climate models (CCM) under re-alistic boundary conditions. In this context, investigations of ozone variabilityusually involve multiple regression analysis (MRA), a statistically efficient albeitcomplicated tool. However, a careful use of advanced regression approaches mayimprove the variability assessment considerably. The present study addressesclimate dependencies in ozone transport, and adopts an advanced regression ap-proach to both quantify deterministic ozone variability and trace it back to thescenario boundary conditions; the investigations refer to transient output of theCCM E39/C.Recent observations show a cooling of the tropical lower stratosphere, andCCMs suggest a spatial coincidence of the cooling with a stronger upward ad-vection of ozone-poor tropospheric air.

Informations

• Publié par: ludwig-maximilians-universitat_munchen
• Publié le: 01 janvier 2007
• Nombre de lectures: 3
• Langue: English
• Poids de l'ouvrage: 4 Mo

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