Effects of Sudden Stratospheric Warmings on the observed near-surface wind speed in the Northern Hemisphere, 1961-2021

<p>Sudden Stratospheric Warmings (SSW) are known to have impacts on the tropospheric atmospheric circulation that can persist up to 60 days. The aim of this work is to evaluate the influence of SSW on both observed mean wind speed and daily peak wind gusts across the Northern Hemisphere for 1961-2021. A set of 26 SSW with tropospheric response, including split (12) and displaced (14) events, are chosen for this matter. Daily wind speed means and peak gust data are retrieved from the quality-controlled and sub-daily station dataset: HadISD. The ultimate goal will be to prove the ability of SSW as possible source of predictability in the medium term for surface wind speed across the Northern Hemisphere, which would have direct applications in areas such as: wind-power generation, agriculture and air quality, among many other socioeconomic and environmental issues.</p>