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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]

In the Yanuncay river that runs through the city of Cuenca, floods frequently occur due to the large discharge that flow through the river. The anticipated knowledge of these phenomena requires a detailed study of the rain-runoff relationship. In the present paper, the determination of this relationship was obtained through a calibration process with nine events (with maximum discharge contained in the range of 17, 1 to 101 m3 / s that occurred in two hydrometric stations) and a subsequent validation stage, with four new events, using for this the HEC-HMS program. The selected events for these stages allowed the process to be carried out, guaranteeing its representativeness for the flow interval with large return periods that could occur in the basin. [ABSTRACT FROM AUTHOR]

The octubre 23th of 2005 the Wilma hurricane live the water near of Cuba, despite being more than 200 km in the Gulf of Mexico, he left his footprints in Havana. It is e necessity to protect the city form the attack of the hurricanes and other severe events, for that reason several studies in order to kwon the behavior of the flooding have been done. In this paper are presented the formulas to compute the average wave overtopping, it is define the wave characteristics by mean a train of numerical model that allow to obtain the hydrographs to force the Iber model, and were done different flooding simulation of the study area, it allow define the location with more hazard. [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]

Severe meteorological events are the main threat in the country, as there is a large population living in areas at risk from hurricanes, tropical storms, heavy rains and flooding for different reasons. For specialized decision makers it would be useful to have historical information on the behavior of the basin under extreme events and the consequences thereof in the region. In most cases, historical rainfall records are present in the basins from the installed equipment. In this paper a procedure is presented to obtain these events from historical rainfall records. The method allows to obtain the events in the basin for further modeling, which is an important tool for decision makers. [ABSTRACT FROM AUTHOR]

The high frequency of tropical storms in Cuba has made Cuban people to follow informations released by the forecast department of the Instituto de Meteorología (Meteorological Institute) together with instructions emitted by the Estado Mayor Nacional de Defensa Civil (Civil Defense National Headquarters), with the purpose of planning relevant protection measures aimmed at disaster mitigation. These informations deal mainly with wind intensity among others but very little is said about rainfall amounts and their consequent flooding danger. The authors of this paper are herein presenting, as a first part, a very short synthesis of the state of the art situation of this important subject. The subject will be treated subsequently in the second part. [ABSTRACT FROM AUTHOR]

In order to reduce flooding vulnerability in Rosario city and surroundings (Santa Fe, Argentina) the Provincial Water Authority managed the installation of a telemetric network to monitoring hydrological variables, along with the development of a river levels forecasting model. This paper presents the structure of the mathematical model used and some partial results. The model's architecture is based on four modules: rainfall generation, estimation of antecedent soil moisture conditions, initial loss and infiltration calculation, and runoff simulation and levels forecast. The performance of the proposed model was successful in terms of comparison between measured and forecasted levels. Medium-size events evidence the sensitivity of the results to the antecedent soil moisture conditions; while the results for important rain events have greater certainty. [ABSTRACT FROM AUTHOR]

Flood hazard criteria in urban areas, considering combined action of depth and velocity, have been developed for rural basins and are applied in fluvial flooding cases. By using GIS tools and the modules for spatial analysis an analysis of flood risk in urban watershed based on multicriteria decision analysis and combinatorial weighting factors has been developed. The aim of this paper is to make contributions to the mixed weighing method to determine urban flood hazard. Risk maps were developed in a case study by applying EPA_SWMM model to simulate a 1 hour and 28.8 mm depth rainfall event. Finally, new criteria are proposed for standardization of this indicator by changing the normalized scale, from a qualitative sensitivity analysis and comparing hazard maps. [ABSTRACT FROM AUTHOR]

In the last few years Cuban analysts have been working to obtain flood hydrograms in some regions of the country applying HEC-HMS model but the experience is not yet enough. The present paper reports research work with HEC-HMS model in mountainous basins of the Cuban eastern region and some recommendations are obtained from its application in Las Coloradas basin. Valuable experiences were derived with calculation methods and their best application range as well as suitable parameter values for them. Physico-geographic and climatical characteristics of eastern mountainous basins were taken into account and their existing hydrometeorological information. [ABSTRACT FROM AUTHOR]

This paper presents a study about regional analysis of maximum rainfall series. A summary of several aspects usually covered in regional analysis is introduced, such as parameter estimation, frequency analysis and others. The results of an example using the so-called "index flood" method proposed by Dalrymple in 1960 are shown. The case study refers to the annual maximum rainfall series in the river Zaza basin. As a conclusion of the study in this basin, it can be established that when it is divided into three sub-regions, they can be considered as homogeneous and they can be adjusted to different theoretical probability distributions. [ABSTRACT FROM AUTHOR]

Hydrologic studies in Coro river basin have neither considered wasted water by spillway overflow nor the "El Isiro" dam break which supplies Coro city. An accelerated urbanization existing downstream of the reservoir in the river floodplain considerably increases posible damages. This paper updated the hydrologic study where "El Isiro" subbasin was included as well as the posibility of the dam break. The impact on the basin response was evaluated allowing the quantification of the flood threat and consequences. The study was supported on HEC-HMS v.3.3 software. Results show that maximum discharges at the end of the basin increase by some 20-35% including spillway discharges. When the dam break is included they are magnified 5-17 times. On the other hand, under the break event peak times are considerably reduced. This work represents a valuable contribution to the flood risk management in the zone. [ABSTRACT FROM AUTHOR]

Flood risk management in urban areas settled over floodplains must be supported on quantitative analysis toestimate probable damage of their impact. This will be the basis for authorized institutions in taking measures to reduce the risk. When estimating flood risk in these zones due to river overtopping threat and vulnerability must be quantified as well as probability of occurrence of the phenomena and its damage. Estimations must result from hydrologichydraulic modeling and physical damage determination caused by hydrometeorological events originating floods in basins. At present there is no agreement as to which is the best methodology to be applied. Neither is this paper aimed at selecting the best. It only presents a review and analysis of accumulated experience from the application of several methodologies to concrete case studies. [ABSTRACT FROM AUTHOR]

Flooding due to rainstorms over watersheds are considered as natural events causing disturbances, risks and damages to many activities, properties and even to human existence. Problems associated to this extreme event are in reality extremely complex because its occurrence is affected by many factors like physiographic, hydrografy and climatology of the basin. Characteristics and use of the soils, vegetation, size and location of populations, works and men activities also influence on the studied areas. A general methodology to deal with flooding and two case studies solved by using different professional software in Tarija City, Bolivia and from Jaruco dam until the confluence with rivers Blanco and San Miguel along Jaruco river in Havana province are presented in this paper. [ABSTRACT FROM AUTHOR]