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The Role of Tropospheric Rossby Wave Breaking in the Pacific Decadal Oscillation
Publisher: American Meteorological Society
Abstract: The leading pattern of extratropical Pacific sea surface temperature variability [the Pacific decadal oscillation (PDO)] is shown to depend on observed variability in the spatiotemporal distribution of tropospheric Rossby ...
The Role of Rossby Wave Breaking in Shaping the Equilibrium Atmospheric Circulation Response to North Atlantic Boundary Forcing
Publisher: American Meteorological Society
Abstract: The role of Rossby wave breaking (RWB) is explored in the transient response of an atmospheric general circulation model to boundary forcing by sea ice anomalies related to the North Atlantic Oscillation (NAO). When the ...
Tropospheric Rossby Wave Breaking and the NAO/NAM
Publisher: American Meteorological Society
Abstract: Objective analysis of several hundred thousand anticyclonic and cyclonic breaking Rossby waves is performed for the Northern Hemisphere (NH) winters of 1958?2006. A winter climatology of both anticyclonic and cyclonic ...
Propagating Atmospheric Patterns Associated with Sea Ice Motion through the Fram Strait
Publisher: American Meteorological Society
Abstract: novel analysis method involving phase-shifted complex Hilbert empirical orthogonal functions (HEOFs) was used to examine how variations in predominant propagating patterns of Arctic surface wind influence daily Fram Strait ...
The Winter Atmospheric Response to Sea Ice Anomalies in the Barents Sea
Publisher: American Meteorological Society
Abstract: he atmospheric response to sea ice anomalies over the Barents Sea during winter was determined by boundary forcing the Community Atmosphere Model (CAM) with daily varying high and low sea ice concentration (SIC) anomalies ...
A Model-Based Decomposition of the Sea Ice–Atmosphere Feedback over the Barents Sea during Winter
Publisher: American Meteorological Society
Abstract: he feedback between Barents Sea ice and the winter atmosphere was studied in a modeling framework by decomposing it into two sequential boundary forcing experiments. The Community Ice Code (CICE) model was initialized with ...
Propagating Atmospheric Patterns Associated with Midwest Winter Precipitation
Publisher: American Meteorological Society
Abstract: or winters over eastern North America, complex Hilbert empirical orthogonal function (HEOF) analysis was used to objectively identify propagating patterns in four atmospheric fields that have potential relevance to ...
Atmospheric Modeling Study on Convection-Triggered Teleconnections Driving the Summer North American Dipole
Publisher: American Meteorological Society
Variability in the Position and Strength of Winter Jet Stream Cores Related to Northern Hemisphere Teleconnections
Publisher: American Meteorological Society
Abstract: Numerous teleconnections have been identified based upon spatial variability in sea level pressure or lower-tropospheric geopotential height fields. These teleconnections, which are commonly strongest in winter when the ...
A New Method for Generating Stochastic Simulations of Daily Air Temperature for Use in Weather Generators
Publisher: American Meteorological Society
Abstract: stochastic harmonic autoregressive parametric (SHArP) weather generator is presented that simulates trended, nonstationary temperature values directly, circumventing the conventional approach of adding simulated standardized ...