Linking Arctic variability and change with extreme winter weather in the United States

Judah Cohen, Laurie Agel, Mathew Barlow, Chaim I. Garfinkel, Ian White

פרסום מחקרי: פרסום בכתב עתמאמרביקורת עמיתים

תקציר

The Arctic is warming at a rate twice the global average and severe winter weather is reported to be increasing across many heavily populated mid-latitude regions, but there is no agreement on whether a physical link exists between the two phenomena. We use observational analysis to show that a lesser-known stratospheric polar vortex (SPV) disruption that involves wave reflection and stretching of the SPV is linked with extreme cold across parts of Asia and North America, including the recent February 2021 Texas cold wave, and has been increasing over the satellite era. We then use numerical modeling experiments forced with trends in autumn snow cover and Arctic sea ice to establish a physical link between Arctic change and SPV stretching and related surface impacts.

שפה מקוריתאנגלית אמריקאית
עמודים (מ-עד)1116-1121
מספר עמודים6
כתב עתScience
כרך373
מספר גיליון6559
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםפורסם - 3 ספט׳ 2021

ASJC Scopus subject areas

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