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RISWinter Midlatitude Cold Anomalies Linked to North Atlantic Sea Ice and SST Anomalies: The Pivotal Role of the Potential Vorticity Gradient
Publisher: American Meteorological Society
Abstract: AbstractThis study establishes a linkage between the North Atlantic sea ice concentration (SIC) or sea surface temperature (SST) and cold anomalies over northern Europe and North America through the Greenland blocking (GB) ...
Linear and Nonlinear Dynamics of North Atlantic Oscillations: A New Thinking of Symmetry Breaking
Publisher: American Meteorological Society
Abstract: AbstractObservations reveal that the North Atlantic Oscillation (NAO) exhibits a strong asymmetry: large amplitude, long persistence, and westward movement in its negative phase (NAO?) and conversely in its positive phase ...
Contrasting Deep and Shallow Winter Warming over the Barents–Kara Seas on the Intraseasonal Time Scale
Publisher: American Meteorological Society
Changes in Atmospheric Blocking Circulations Linked with Winter Arctic Warming: A New Perspective
Publisher: American Meteorological Society
Abstract: AbstractWinter atmospheric blocking circulations such as Ural blocking (UB) have been recognized to play an important role in recent winter Eurasian cooling. Observational analyses performed here reveal that the winter ...
Impact of Winter Ural Blocking on Arctic Sea Ice: Short-Time Variability
Publisher: American Meteorological Society
Abstract: AbstractUsing daily reanalysis data from 1979 to 2015, this paper examines the impact of winter Ural blocking (UB) on winter Arctic sea ice concentration (SIC) change over the Barents and Kara Seas (BKS). A case study of ...
Characteristics and Mechanisms of the Interannual Variability of the Northwest–Southeast Shift of the Tropical Easterly Jet’s Core in July
Publisher: American Meteorological Society
Weakened Potential Vorticity Barrier Linked to Recent Winter Arctic Sea Ice Loss and Midlatitude Cold Extremes
Publisher: American Meteorological Society
Abstract: AbstractA winter Eurasian cooling trend and a large decline of winter sea ice concentration (SIC) in the Barents?Kara Seas (BKS) are striking features of recent climate changes. The question arises as to what extent these ...
Decadal Thermal Variability of the Upper Southern Ocean: Zonal Asymmetry
Publisher: American Meteorological Society
Nonlinear Response of Atmospheric Blocking to Early Winter Barents–Kara Seas Warming: An Idealized Model Study
Publisher: American Meteorological Society