On the observed connection between Arctic sea ice and Eurasian snow in relation to the winter North Atlantic Oscillation
Visualitza/Obre
Cita com:
hdl:2117/337096
Tipus de documentArticle
Data publicació2020
EditorIOP Publishing
Condicions d'accésAccés obert
Llevat que s'hi indiqui el contrari, els
continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
:
Reconeixement 3.0 Espanya
ProjecteAPPLICATE - Advanced Prediction in Polar regions and beyond: Modelling, observing system design and LInkages associated with ArctiC ClimATE change (EC-H2020-727862)
PRIMAVERA - PRocess-based climate sIMulation: AdVances in high resolution modelling and European climate Risk Assessment (EC-H2020-641727)
PRIMAVERA - PRocess-based climate sIMulation: AdVances in high resolution modelling and European climate Risk Assessment (EC-H2020-641727)
Abstract
Sea ice concentration (SIC) in the eastern Arctic and snow cover extent (SCE) over central Eurasia in late autumn have been proposed as potential predictors of the winter North Atlantic Oscillation (NAO). Here, maximum covariance analysis is used to further investigate the links between autumn SIC in the Barents-Kara Seas (BK) and SCE over Eurasia (EUR) with winter sea level pressure (SLP) in the North Atlantic-European region over 1979-2019. As shown by previous studies, the most significant covariability mode of SIC/BK is found for November. Similarly, the covariability with SCE/EUR is only statistically significant for November, not for October. Changes in temperature, specific humidity, SIC/BK and SCE/EUR in November are associated with a circulation anomaly over the Ural-Siberian region that appears as a precursor of the winter NAO; where the advection of climatological temperature/humidity by the anomalous flow is related to SCE/EUR and SIC/BK anomalies.
CitacióSantolaria-Otín, M. [et al.]. On the observed connection between Arctic sea ice and Eurasian snow in relation to the winter North Atlantic Oscillation. "Environmental Research Letters", 2020, vol. 15, núm. 12, 124010.
ISSN1748-9326
Versió de l'editorhttps://iopscience.iop.org/article/10.1088/1748-9326/abad57
Col·leccions
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
Santolaria-Otín ... ._Res._Lett._15_124010.pdf | 7,918Mb | Visualitza/Obre |