Abstract: The dynamics of frontogenesis at upper levels are investigated using a hierarchy of three numerical models. They are, in order of decreasing sophistication, the anelastic (AN), the geostrophic momentum (GM), and the ...

Abstract: n objective method for the identification of the intertropical convergence zone (ITCZ) in gridded numerical weather prediction datasets is presented. This technique uses layer- and time-averaged winds in the lower troposphere ...

Abstract: We examine air parcel trajectories in the two-dimensional model for a cold front by Reeder and Smith. These are found to be in close agreement with trajectories deduced from analyses of summertime ?cool changes? in ...

Abstract: The climatology of convection over northern Australia and the surrounding oceans, based on six wet seasons (September?April), is derived from the Japanese Meteorological Agency Geostationary Meteorological Satellite-5 ...

Abstract: The variability of the north Australian wet season is examined by performing cluster analysis on the wind and thermodynamic information contained in the 2300 UTC radiosonde data at Darwin for 49 wet seasons (September?April) ...

Abstract: A cluster analysis is applied to the mesoscale convective systems (MCSs) that developed in northern Australia and the surrounding oceans during six wet seasons (September?April) from 1995/96 to 2000/01. During this period, ...

Abstract: The dynamics of frontal evolution is investigated in the context of the Australian summertime cool change using a two-dimensional numerical model. The model is essentially the same as that used by Reeder and Smith, but ...

Abstract: This study uses a two-dimensional cloud-resolving model to examine how convectively generated gravity waves modify the environment of an isolated convective cloud. The model is initialized with an idealized sounding, and ...

Abstract: he wet season of the Australian monsoon is characterized by subseasonal periods of excessively wet or dry conditions, commonly known as monsoon bursts and breaks. This study is concerned with the synoptic evolution prior ...