Abstract: Lateral mixing and compensating subsidence of penetrative convection are two different techniques of parameterizing the large-scale effects of deep cumuli. Both methods are jointly derived by averaging the conservative ...

Abstract: Daily 500 mb geopotentials gridded along 50°S are statistically analyzed for five summer and winter seasons (1959?64): 1) to establish climatic statistics of the macro-turbulent processes in the Southern Hemisphere westwind ...

Abstract: Probability of precipitation (POP) for the 12 hours 0600 to 1800 local time was predicted for Melbourne each day for the three months (winter) period June-August 1986 using six different techniques. These were: a Markov ...

Abstract: A ?minimal? model is proposed here for the short-term prediction (up to 12 h ahead) of precipitation occurrence in the tropics. The model is purely statistical, consisting of an optimally weighted linear combination of a ...

Abstract: In this article, the theory is presented for a linear combination of two independent predictive techniques (either probabilistic or binary). It is shown that substantial gains might be expected for optimal weighting of the ...

Abstract: The results of a major real-time trial of techniques for the short-term (12 h ahead) prediction of precipitation for the Australian tropical city of Darwin are described. The trial compared current operational manual ...

Abstract: Certain methods are tested to estimate the divergence of the outflow anvil of tropical cloud clusters. These methods are based on the change of digitized brightness values given by a sequence of satellite pictures. From ...

Abstract: It is demonstrated that the skill of short-term regional numerical forecasts can be predicted on a day-to-day basis. This was achieved by using a statistical regression scheme with the model forecast errors (MFE) as the ...