Tropospheric Precursors of Anomalous Northern Hemisphere Stratospheric Polar Vortices

By C. Garfinkel, D. Hartmann, F. Sassi. 2009

302 citations recorded by the source corpus.

Subfields: Atmospheric Science, Global and Planetary Change

View Paper: https://www.semanticscholar.org/paper/1e00bd02ccb7d91caea49248de1932c419acdf98

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Citations in the corpus

Sudden Stratospheric Warmings (2020, background): “…variability of the stratospheric vortex, with more extensive snow leading to a weakened vortex (Cohen et al., 2007; Henderson et al., 2018) via a strengthened Ural ridge and subsequent construc-610 tive interference with climatological stationary waves (Garﬁnkel et al., 2010; Cohen et al., 2014).”
Observed connection between stratospheric sudden warmings and the Madden‐Julian Oscillation (2012, unknown): “…during an El Niño winter, mid-tropospheric geopotential heights are anomalously low in the NP, and these teleconnections with the midlatitudes have been linked with a weakened polar vortex [ Garfinkel and Hartmann , 2008; Bell et al. , 2009; Ineson and Scaife , 2009; Garfinkel et al. , 2010, 2012].”
The Remarkably Strong Arctic Stratospheric Polar Vortex of Winter 2020: Links to Record‐Breaking Arctic Oscillation and Ozone Loss (2020, background): “In general, waves in the troposphere that linearly interfere in a constructive/destructive way with the climatological stationary wave pattern result in amplified/dampened wave driving of the polar vortex (see, e.g., Garfinkel et al., 2010; Kolstad & Charlton-Perez, 2011; Smith & Kushner, 2012).”
Tropospheric Precursors and Stratospheric Warmings (2011, background): “There is also present an opposite low pressure anomaly associated with a deeper Aleutian low, which has been argued to be associated with El Niño (Ineson and Scaife 2009; Garfinkel et al. 2010).”
Vortex Preconditioning due to Planetary and Gravity Waves prior to Sudden Stratospheric Warmings (2014, background): “Indeed, many studies are able to ﬁnd a high correlation between SSWs and various tropospheric phenomena that are favorable for generating wave activity, including tropospheric blocking, ENSO, and storm-track shifts (e.g., Martius et al. 2009; Garﬁnkel et al. 2010; Cohen and Jones 2011).”
Does the Holton–Tan Mechanism Explain How the Quasi-Biennial Oscillation Modulates the Arctic Polar Vortex? (2012, background): “Although much of this variability is stochastic (Holton and Mass 1976), Garfinkel et al. (2010) found that approximately 40% of the variability on interseasonal time scales may be linked to variability occurring outside of the polar stratosphere.”
The predictability of the extratropical stratosphere on monthly time‐scales and its impact on the skill of tropospheric forecasts (2015, background): “As noted by Haynes (2005), it is likely that variability in the stratosphere is determined both by the ‘valve’ effects described in this section and also by transient changes to tropospheric planetary waves driven by a range of tropospheric processes (Garfinkel et al., 2010; Kolstad and Charlton-Per”
The association between stratospheric weak polar vortex events and cold air outbreaks in the Northern Hemisphere (2009, background): “This corresponds to a pattern 160 found to favour stratospheric warmings through upward-propagating tropospheric waves 161 (Kuroda and Kodera, 1999; Breiteig, 2009; Garfinkel et al., 2009) and is a tropospheric precursor 162 of the warming aloft.”
The Teleconnection of El Niño Southern Oscillation to the Stratosphere (2019, background): “As discussed in Garfinkel et al. (2010), a low in the northeastern Pacific is less effective at weakening the vortex as compared to a low that extends into the northwestern Pacific.”