Defining metrics of the Quasi-Biennial Oscillation in global climate models
As the dominant mode of variability in the tropical stratosphere, the Quasi-Biennial Oscillation (QBO) has been subject to extensive research. Though there is a well-developed theory of this phenomenon being forced by wave–mean flow interaction, simulating the QBO adequately in global climate mo...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2017-06-01
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| Series: | Geoscientific Model Development |
| Online Access: | http://www.geosci-model-dev.net/10/2157/2017/gmd-10-2157-2017.pdf |
| Summary: | As the dominant mode of variability in the tropical stratosphere,
the Quasi-Biennial Oscillation (QBO) has been subject to extensive research.
Though there is a well-developed theory of this phenomenon being forced by
wave–mean flow interaction, simulating the QBO adequately in global climate
models still remains difficult. This paper presents a set of metrics to
characterize the morphology of the QBO using a number of different reanalysis
datasets and the FU Berlin radiosonde observation dataset. The same metrics
are then calculated from Coupled Model Intercomparison Project 5 and
Chemistry-Climate Model Validation Activity 2 simulations which included a
representation of QBO-like behaviour to evaluate which aspects of the QBO are
well captured by the models and which ones remain a challenge for future
model development. |
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| ISSN: | 1991-959X 1991-9603 |