English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/207927
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:


On the representation of major stratospheric warmings in reanalyses

AuthorsBarriopedro, D.; Ayarzagüena, B.; Palmeiro, F.M.; Calvo, N.; Langematz, U.; Shibata, K.
Issue Date2019
PublisherEuropean Geophysical Society
CitationAtmospheric Chemistry and Physics 19: 9469- 9484 (2019)
AbstractMajor sudden stratospheric warmings (SSWs) represent one of the most abrupt phenomena of the boreal wintertime stratospheric variability, and constitute the clearest example of coupling between the stratosphere and the troposphere. A good representation of SSWs in climate models is required to reduce their biases and uncertainties in future projections of stratospheric variability. The ability of models to reproduce these phenomena is usually assessed with just one reanalysis. However, the number of reanalyses has increased in the last decade and their own biases may affect the model evaluation. Here we compare the representation of the main aspects of SSWs across reanalyses. The examination of their main characteristics in the pre- and post-satellite periods reveals that reanalyses behave very similarly in both periods. However, discrepancies are larger in the pre-satellite period compared to afterwards, particularly for the NCEP-NCAR reanalysis. All datasets reproduce similarly the specific features of wavenumber-1 and wavenumber-2 SSWs. A good agreement among reanalyses is also found for triggering mechanisms, tropospheric precursors, and surface response. In particular, differences in blocking precursor activity of SSWs across reanalyses are much smaller than between blocking definitions.
Publisher version (URL)http://dx.doi.org/10.5194/acp-19-9469-2019
Identifiersdoi: 10.5194/acp-19-9469-2019
issn: 1680-7324
Appears in Collections:(IGEO) Artículos
Files in This Item:
File Description SizeFormat 
769955.pdf2,26 MBUnknownView/Open
Show full item record
Review this work

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.