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Variability of the Observed Midlatitude Storm Tracks in Relation to Low-Frequency Changes in the Circulation Pattern
Publisher: American Meteorological Society
Abstract: The principal modes of month-to-month variability of the wintertime storm tracks over the North Pacific and North Atlantic are identified by empirical orthogonal function analysis of the root-mean-square statistics of ...
2015 Bernhard Haurwitz Memorial Lecture: Model Diagnosis of El Niño Teleconnections to the Global Atmosphere–Ocean System
Publisher: American Meteorological Society
Abstract: he El Niño?Southern Oscillation (ENSO) phenomenon is one of the most prominent modes of atmospheric and oceanic variability on interannual and interdecadal time scales. The essential ENSO signals originate from the tropical ...
A Diagnostic Study of Recurrent Meteorological Anomalies Appearing in a 15-Year Simulation with a GFDL General Circulation Model
Publisher: American Meteorological Society
Abstract: The spatial structure and temporal characteristics of prominent anomalies occurring in a 15-year simulation with a GFDL spectral general circulation model are examined using empirical orthogonal functions, teleconnection ...
Modeling the Seasonal Dependence of the Atmospheric Response to Observed El Niños in 1962–76
Publisher: American Meteorological Society
Abstract: Two 15-year atmospheric GCM integrations are conducted with the lower boundary over the tropical Pacific being forced by observed month-to-month sea surface temperature (SST) changes during the period 1962?76. A descriptive ...
On the Three-Dimensional Structure of the Observed Transient Eddy Statistics of the Northern Hemisphere Wintertime Circulation
Publisher: American Meteorological Society
Abstract: The three-dimensional structure of temporal mean, variance and covariance fields of the Northern Hemisphere wintertime circulation is documented by making use of twice-daily hemispheric analyses at 10 pressure levels ...
The Observed Structure of Tropospheric Stationary Waves and the Local Balances of Vorticity and Heat
Publisher: American Meteorological Society
Abstract: The physical structure and the associated transport properties of stationary waves in the troposphere are described using circulation statistics compiled from twice-daily hemispheric analyses covering 11 winters. The ...
The Structure and Energetics of Transient Disturbances in the Northern Hemisphere Wintertime Circulation
Publisher: American Meteorological Society
Abstract: The hemispheric distributions of wintertime circulation statistics derived from the forecast fields of vertical motion are presented. The dominant features in the pattern for time-mean vertical velocity are consistent with ...
Interactions between Global SST Anomalies and the Midlatitude Atmospheric Circulation
Publisher: American Meteorological Society
Abstract: A review is given of the processes contributing to variability of the atmosphere?ocean system on interannual timescales. Particular emphasis is placed on the relationships between midlatitude atmospheric fluctuations and ...
Intraseasonal Teleconnection between North American and Western North Pacific Monsoons with 20-Day Time Scale
Publisher: American Meteorological Society
Abstract: Based on a recently released, high-resolution reanalysis dataset for the North American region, the intraseasonal variability (ISV; with a time scale of about 20 days) of the North American monsoon (NAM) is examined. The ...
A Diagnostic and Modeling Study of the Monthly Mean Wintertime Anomalies Appearing in a 100-Year GCM Experiment
Publisher: American Meteorological Society
Abstract: The nature of simulated atmospheric variability on monthly time scales has been investigated by analyzing the output from a 100-year integration of a spectral GCM with rhomboidal wavenumber 15 truncation. In this experiment, ...