Towards seasonal prediction: stratosphere-troposphere coupling in the atmospheric model ICON-NWP

Stratospheric variability is one of the main potential sources for sub-seasonal to seasonal predictability in mid-latitudes in winter. Stratospheric pathways play an important role for long-range teleconnections between tropical phenomena, such as the quasi-biennial oscillation (QBO) and El Niño-Sou...

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1. Verfasser: Köhler, Raphael H. (VerfasserIn)
Format: Abschlussarbeit Elektronisch E-Book
Sprache:English
Veröffentlicht: Potsdam 2020
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Zusammenfassung:Stratospheric variability is one of the main potential sources for sub-seasonal to seasonal predictability in mid-latitudes in winter. Stratospheric pathways play an important role for long-range teleconnections between tropical phenomena, such as the quasi-biennial oscillation (QBO) and El Niño-Southern Oscillation (ENSO), and the mid-latitudes on the one hand, and linkages between Arctic climate change and the mid-latitudes on the other hand. In order to move forward in the field of extratropical seasonal predictions, it is essential that an atmospheric model is able to realistically simulate the stratospheric circulation and variability. The numerical weather prediction (NWP) configuration of the ICOsahedral Non-hydrostatic atmosphere model ICON is currently being used by the German Meteorological Service for the regular weather forecast, and is intended to produce seasonal predictions in future. This thesis represents the first extensive evaluation of Northern Hemisphere stratospheric winter circulation in ICON-NWP by analysing a ...
Beschreibung:1 Online-Ressource (viii, 119 Seiten, 58877 KB) Illustrationen, Diagramme, Karten
DOI:10.25932/publishup-48723

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