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RISGlobal Extratropical Response to Diabatic Heating Variability of the Asian Summer Monsoon
Publisher: American Meteorological Society
Abstract: Global teleconnections associated with the Asian summer monsoon convective activities are investigated based on monthly data of 29 Northern Hemisphere summers defined as June?September (JJAS). Two distinct teleconnection ...
Seasonal Predictability in a Model Atmosphere
Publisher: American Meteorological Society
Abstract: The predictability of atmospheric mean-seasonal conditions in the absence of externally varying forcing is examined. A perfect-model approach is adopted, in which a global T21 three-level quasigeostrophic atmospheric model ...
Monitoring and Predicting the Intraseasonal Variability of the East Asian–Western North Pacific Summer Monsoon
Publisher: American Meteorological Society
Abstract: n this study, a new index is defined to capture the prominent northward propagation of the intraseasonal oscillation (ISO) in boreal summer in the East Asian and western North Pacific (EAWNP) region. It is based on the ...
Influence of Forced Large-Scale Atmospheric Patterns on Surface Air Temperature in China
Publisher: American Meteorological Society
Abstract: The seasonality of the influence of the tropical Pacific sea surface temperature (SST)-forced large-scale atmospheric patterns on the surface air temperature (SAT) over China is investigated for the period from 1969 to ...
The Influence of the Madden–Julian Oscillation on Canadian Wintertime Surface Air Temperature
Publisher: American Meteorological Society
Abstract: Using the homogenized Canadian historical daily surface air temperature (SAT) for 210 relatively evenly distributed stations across Canada, the lagged composites and probability of the above- and below-normal SAT in Canada ...
Nonlinearity of the Extratropical Response to Tropical Forcing
Publisher: American Meteorological Society
Abstract: A primitive equations dry atmospheric model is used to investigate the atmospheric response to a tropical diabatic forcing pattern and explore how the atmospheric response changes as a function of the amplitude of the ...
Contribution of the Autumn Tibetan Plateau Snow Cover to Seasonal Prediction of North American Winter Temperature
Publisher: American Meteorological Society
Abstract: redicting surface air temperature (T) is a major task of North American (NA) winter seasonal prediction. It has been recognized that variations of the NA winter T?s can be associated with El Niño?Southern Oscillation (ENSO) ...
Tropical Atmospheric Forcing of the Wintertime North Atlantic Oscillation
Publisher: American Meteorological Society
Abstract: he relationship between the interannual wintertime variability of the North Atlantic Oscillation (NAO) and tropical heating anomalies is examined using the NCEP?NCAR reanalysis and observation-based sea surface temperature ...
Extratropical Response to the MJO: Nonlinearity and Sensitivity to the Initial State
Publisher: American Meteorological Society
Abstract: AbstractPrevious studies have shown that the Madden?Julian oscillation (MJO) has a global impact that may provide an important source of skill for subseasonal predictions. The extratropical response was found to be the ...
Tropical–Extratropical Interactions of Intraseasonal Oscillations
Publisher: American Meteorological Society
Abstract: ropical?extratropical interactions of intraseasonal oscillations (ISOs), based on 30 years (1979?2009) of northern winter observations and theory, are compared. The phase relationships between the tropical signal of the ...