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Abstract: Two categories of theories have been proposed to explain the observed tropical intraseasonal oscillations whose main periodicity is between 30?50 days: (i) those based on eastward propagating Kelvin waves maintained by ...

Abstract: Atmospheric general circulation model (AGCM) simulations are carried out to test a hypothesis (Chang et al.) for the asymmetric monsoon transition in which the maximum convection marches gradually from the Asian summer ...

Abstract: The key questions of how the tropospheric biennial oscillation (TBO) maintains the same phase from northern summer in South Asia to southern summer in Australia, and how the reversed phase can last through three locally ...

Abstract: In order to understand the northeasterly monsoon surges and associated tropical motions over Southeast Asia during northern winter, the dynamic response of the tropical atmosphere to midlatitude pressure surges is studied ...

Abstract: Tropical heating due to latent heat release has been proposed as a source that may influence midlatitude weather through teleconnection patterns. However, such heating is usually-internal (with the maximum in the midtroposphere) ...

Abstract: Using a linearized model with constant mean wind on an equatorial ?-plane, two types of atmospheric response to steady tropical forcing are studied by an eigenmode analysis. The first type is the less rotationally trapped ...

Abstract: Two cases of summer monsoon depressions in the vicinity of the Bay of Bengal are analyzed to study the importance of the baroclinic mechanism. Both cases show a baroclinic structure with well-defined warm and cold sectors, ...

Abstract: This study compares the spectral characteristics of tropical synoptic (5-day) disturbances over the western Pacific contained in radiosonde observations and the initial analysis and 48-h forecast of the navy's operational ...