A New Look at Stratospheric Sudden Warmings. Part III: Polar Vortex Evolution and Vertical Structure

By Joss Matthewman, J. Esler, A. Charlton-Perez, L. Polvani. 2009

354 citations recorded by the source corpus.

Subfields: Atmospheric Science, Global and Planetary Change

View Paper: https://www.semanticscholar.org/paper/725ae80d005b48f14a131011061eaa0b9d7943b7

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atmospheric Science

1. A. Butler
2. C. Garfinkel
3. T. Birner
4. F. Sassi
5. Han-Li Liu
6. L. Polvani
7. A. Charlton-Perez
8. Jorge L. Chau

In Global and Planetary Change

1. A. Butler
2. C. Garfinkel
3. T. Birner
4. F. Sassi
5. L. Polvani
6. A. Charlton-Perez
7. J. Anstey
8. T. Woollings

Citations in the corpus

• Multimodel projections of stratospheric ozone in the 21st century (2007, neutral): “This includes the representation of vortex barriers and the frequency and timing of major midwinter stratospheric sudden warmings as a basic unit of stratospheric variability [ Charlton and Polvani , 2007].”
• Observed connection between stratospheric sudden warmings and the Madden‐Julian Oscillation (2012, background): “The results are not sensitive, in a qualitative sense, to discriminating between displacement or split SSWs (described in Charlton and Polvani [2007]), or to distinguishing between El Niño or La Niña SSW.”
• Stratosphere–Troposphere Coupling in a Relatively Simple AGCM: The Importance of Stratospheric Variability (2009, background): “The stratospheric vortex splits abruptly, nearly synchronously at all levels (Matthewman et al. 2009), as seen in the sharp drop to negative NAM index values in the stratosphere just before lag zero.”
• Associations between stratospheric variability and tropospheric blocking (2010, background): “In particular, the orientation of EOF patterns is very close to the stratospheric variability observed during minor and major warmings [e.g., Matthewman et al. , 2009].”
• Vortex Preconditioning due to Planetary and Gravity Waves prior to Sudden Stratospheric Warmings (2014, methodology): “The strong peak in split events during midwinter suggests that we look closer at the geometry of the vortex during January and February versus the surrounding months.”
• Geomagnetic activity signatures in wintertime stratosphere wind, temperature, and wave response (2013, background): “Geomagnetic Signals in Dynamical Parameters [16] In the first part of our study, we will focus on results from analysis where data from winters during which a midwinter Sudden Stratospheric Warming (SSW) occurred [see Charlton and Polvani, 2007; Manney et al., 2009] were omitted. While this does red”
• A practical method to identify displaced and split stratospheric polar vortex events (2013, background): “These two types have a very different spatial structure and evolution timescale [Matthewman et al., 2009].”
• Blocking precursors to stratospheric sudden warming events (2009, methodology): “displacement event), or torn into two distinct pieces (a vortex splitting event) [Charlton and Polvani, 2007].”
• Aura Microwave Limb Sounder observations of dynamics and transport during the record‐breaking 2009 Arctic stratospheric major warming (2009, background): “SSWs can be classified as vortex displacement or vortex split events [e.g., Charlton and Polvani , 2007, hereinafter CP07].”
• Equatorial and Low Latitude Ionospheric Effects During Sudden Stratospheric Warming Events (2011, background): “Recently, Charlton and Polvani (2007) and Matthewman et al. (2009) suggested a vortex-oriented classification as a more appropriate approach and separated SSW events into those which split or do not split the stratospheric polar vortex.”
• Toward a Physically Based Gravity Wave Source Parameterization in a General Circulation Model (2010, background): “Typically, GCMs have difficulties reproducing the observed SSW frequency (Charlton and Polvani 2007; Charlton et al. 2007).”
• Defining Sudden Stratospheric Warmings (2015, methodology): “2002) • Tendency of the northern annular mode index at 10 hPa (Martineau and Son 2013), polar cap temperature (Nakagawa and Yamazaki 2006), or the zonal-mean zonal wind at 10 hPa near 60°N (Birner and Albers 2015) • k-means clustering technique (Coughlin and Gray 2009) • Vortex geometry, including v”
• The influence of stratospheric vortex displacements and splits on surface climate (2013, methodology): “Both types of event have often been defined using diagnostics based on the zonal mean (Charlton and Polvani 2007, hereafter CP07) or annular mode (Thompson and Wallace 1998).”