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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]

The Varadero beach is a tourism place one of the most famous in Cuba. For the Oasis sector has been design and artificial beach compose for several submerged breakwater parallel to the coast, and an initial sand supply project. It this paper is presented the evaluation of the project applying a train of numerical model coupling ADCIRC + SWAN + Xbeach. It was analyzed the hydrodynamics and wave variables. The morphological behavior of the initial nourishment was evaluated. The results of the study show the proposal is not effective, the losses of sand and the reshape of the beach for climate condition studied do not meet the tourism demands. [ABSTRACT FROM AUTHOR]

The aim of this paper is to present a panoramic view of the impact of climate change on the Cuban Southeast. It discusses the principal threats and risks affecting coastal areas, and describes the most recent and pertinent results of scientific research carried out with the aim of tackling climate change in such areas. Programmes that have been adopted in order to identify and implement solutions regarding Integrated Coastal Zone Management and the management of human settlements are also presented. Such programmes aim to reduce vulnerabilities resulting from serious natural threats, progressive sea-level rise or from the effects observed through models of upwelling in the case of hurricanes of different categories. This paper concludes that climatic change in the Cuban Southeast is a process beyond doubt, and it is currently being confronted as a matter of priority; more than ten programmes have already been put in action, involving various collaborating institutions. [ABSTRACT FROM AUTHOR]

High intensity hurricanes attack frequently the Cuban island with great damages and high costs in the evacuation of people living in vulnerable areas. This paper presents an analysis of hurricanes that have affected the region to assist in the design and construction of solutions to prevent strong sea penetrations, by means of the SWAN mathematical model. Precedent studies have shown that a simple relationship between hurricane intensity and wave heights associated to it does not exist for a given point in the coastline. The paper shows the results of an investigation applying the SWAN model, developed by the Technological University of Delft. It is applied in its non stationary form to simulate the most unfavorable possible trajectories in the study region. [ABSTRACT FROM AUTHOR]

The paper shows the experience in handling the design of Caibarien- Santa Maria key causeway to fit it with the environmental characteristics of the watershed in which it is located. By means of a cause-effect modeling graphic, corroborated by an up-dated informatics software, it is demonstrated the fundamental character that keeping the ocean-island shelf interchange has, as well as the hydrodynamics, in the preservation of the marine environmental characteristics. It is also explained the general strategy that was followed, on the assumption that the causeway is, according to the environmental point of view, a hydraulic construction as a set of its main components: the road layout, the calculation of bridges by hydraulically quasi-homogenous sections, the manner the bridges are located, the off-road induced works and the so-called ecological bridges. [ABSTRACT FROM AUTHOR]

Five species of macroalgae (rhodophytes) are newly added to Cuban marine flora, all collected in the coast of Cienfuegos province: Dasya ocellata (Gratel.) Harv. in Hook., Griffithsia schousboei Mont. in Webb var. anastomosans E.C. Oliveira, Gelidium torulosum Kützing, Halymenia pseudofloresii Collins & M. Howe and Champia vieillardii Kützing. Griffithsia schousboei var. anastomosans and Gelidium torulosum represent new records for the Caribbean region; these taxa were previously known only from Brazil. Comments about taxonomy, ecology and biogeography of the involved taxa are also discussed offered in this paper. It is noteworthy that Halymenia pseudofloresii showed a great variability in size and branches diameter, as in its type locality (Bermuda). [ABSTRACT FROM AUTHOR]