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In Cuba, due to the need to measure the flows that circulate through small and large diameter conductors and given the momentary impossibility of acquiring high-tech solutions in international markets, these solutions have begun to be implemented as a provisional alternative variant to carry out these measurements. This paper is a summary of the main aspects that must be kept in mind when undertaking the design and construction of a proportional flowmeter, emphasizing the potentialities and weaknesses of each of the solutions that can be implemented for such purposes. [ABSTRACT FROM AUTHOR]

This paper presents a study of the upwelling of tropical cyclones Iván (2004) and Gustav (2008), both associated with coastal flooding in the area. The Delft3D-FLOW model was applied in order to determine its influence on the total sea surges that occurred. Graphs of sea elevation due to upwelling were obtained at La Coloma, Playa Bailen, Cabo de San Antonio, Playa Bibijagua and Carapachibey. In the absence of measured data, it was validated by comparing the results with previous studies and modeling in another area, with the presence of sea level measurement stations, but applying the same methodology. Finally, it was concluded that the application of the model under the methodology used correctly described the phenomenon. [ABSTRACT FROM AUTHOR]

In this paper was calculated the return period of coastal floods for each of the coastal settlements that report this extreme event in the Cuban archipelago, based on the period 1901-2020. The chronology and classification of coastal floods for each province was used, as well as the Poisson distribution and the χ² goodness of fit test. It is concluded that the Poisson distribution was suitable in all cases for the significance level of 5%; while the greatest hazard is presented by Havana, Baracoa and the settlements of the Gulf of Batabanó in which the occurrence of a flood event is expected at least once every three to five years. [ABSTRACT FROM AUTHOR]