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Andrew J. Charlton
Researcher at Columbia University
Publications - 6
Citations - 1370
Andrew J. Charlton is an academic researcher from Columbia University. The author has contributed to research in topics: Stratosphere & Baroclinity. The author has an hindex of 6, co-authored 6 publications receiving 1204 citations.
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A New Look at Stratospheric Sudden Warmings. Part I: Climatology and Modeling Benchmarks
TL;DR: In this paper, all major midwinter stratospheric warming events are identified and classified, in both the NCEP-NCAR and 40-yr ECMWF Re-Analysis (ERA-40) datasets.
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A New Look at Stratospheric Sudden Warmings. Part II: Evaluation of Numerical Model Simulations
Andrew J. Charlton,Lorenzo M. Polvani,Judith Perlwitz,Fabrizio Sassi,Elisa Manzini,Kiyotaka Shibata,Steven Pawson,J. Eric Nielsen,David Rind +8 more
TL;DR: In this article, the simulation of major midwinter stratospheric sudden warmings (SSWs) in six stratosphere-resolving general circulation models (GCMs) is examined, and the results indicate that GCMs are capable of quite accurately simulating the dynamics required to produce SSWs, but with lower frequency than the climatology.
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The Effect of Lower Stratospheric Shear on Baroclinic Instability
TL;DR: In this article, the effect of vertical shear in the lower stratosphere on baroclinic instability in the tropospheric midlatitude jet is examined using a hierarchy of models and observations.
Journal ArticleDOI
Stratospheric influence on baroclinic lifecycles and its connection to the Arctic Oscillation
TL;DR: In this article, the authors investigate how stratospheric conditions alter the development of baroclinic instability in the troposphere and find that the addition of the stratosphere jet yields a net surface geopotential height anomaly that strongly resembles the Arctic Oscillation.
Stratospheric influence on baroclinic lifecycles and its connection to the
TL;DR: Wittman et al. as mentioned in this paper investigated how stratospheric conditions alter the development of baroclinic instability in the troposphere and found that the addition of the stratosphere jet yields a net surface geopotential height anomaly that strongly resembles the Arctic Oscillation.