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On the seasonality of climate fluctuations over the contiguous United States
The dominant spatial patterns of climatic fluctuation over the contiguous United States during the winter and summer seasons (1931-82) are examined using monthly mean temperature and monthly total precipitation anomalies for the 344 climatic divisions. These data are expanded into orthogonal components using rotated principal ...
Numerical simulation of tropical cyclone genesis
Past hurricane or typhoon simulation studies have concentrated on the development of the mature storm. Most of these simulations began with initial states that had closed, relatively strong cyclonic circulations and that ultimately produced hurricane disturbances during the integrations. Numerical modelers have generally not ...
On the maintenance of blocking anticyclones in a general circulation model
Blocking anticyclones that appear in perpetual January simulations of a general circulation model are examined. Blocks in three geographical regions are studied: the North Pacific, the North Atlantic and Western North America. Local time-averaged balances of vorticity and heat are evaluated for composite cases of blocking. ...