Conceição Juana Fortes

Preliminary phases of the HIDRALERTA system: Assessment of the flood levels at S. João da Caparica beach, Portugal

ABSTRACT Raposeiro, P.D., Fortes, C.J.E.M., Capitão, R., Reis, M.T., Ferreira, J.C., Pereira, M.T.S., Guerreiro, J., 2013. Preliminary phases of the HIDRALERTA system: Assessment of the flood levels at S. João da Caparica beach, Portugal. The length of the Portuguese coast, the severity of the sea conditions and the concentration of population and economic activities on its coastal zone justify the importance of studying wave-induced risks and, in particular, flooding due to wave action. Indeed, emergency situations caused by adverse sea conditions are frequent and put in danger the safety of people and goods, with negative impacts for society, economy and natural heritage. So, assessing the risk of flooding of coastal and port areas is essential for the proper planning and management of these areas. In this framework, a methodology for the flood risk assessment in coastal and port areas is under development. The methodology is embedded into the HIDRALERTA system, a novel integrated system for port and coastal management, designed to prevent emergency situations, to support their management and to forecast incidental long-term interventions. The present paper describes the methodology, the HIDRALERTA system and a case study, the São João da Caparica beach, on the Lisbons area, where the referred methodology was recently applied. Sea wave characterization and flood level calculations are presented for the study.

Port of Ponta Delgada, S. Miguel, Azores: assessment of the consequences of overtopping using AHP methodology

This work describes the application of a methodology for assessment of overtopping consequences at the port of Ponta Delgada, S. Miguel, Azores, by using a multi-criteria analysis (Analytic Hierarchy Process, AHP) on the impact of extreme overtopping exceeding the admissible values. Such approach allows obtaining results based on spatial analysis of the indicators that characterize the studied port area with respect to their relative importance.This work describes the application of a methodology for assessment of overtopping consequences at the port of Ponta Delgada, S. Miguel, Azores, by using a multi-criteria analysis (Analytic Hierarchy Process, AHP) on the impact of extreme overtopping exceeding the admissible values. Such approach allows obtaining results based on spatial analysis of the indicators thatxa0 characterize the studied port area with respect to their relative importance.xa0https://doi.org/10.14195/1647-7723_24_9

A Web Platform for the Systematic Monitoring of Coastal Structures.

Due to both its geographic location and maritime importance, Portugal is equipped with a large number of port infrastructures, the majority of which built for goals such as to guarantee the tranquility of the sheltered areas of the harbour basins, to help controlling sedimentation by guiding the currents, to protect water taken from thermoelectric plants, amongst others. In Portugal, the most common of these structures is the rubblemound breakwater. Due to its characteristics, maintenance or repair works are common throughout its lifetime. However, the need for these repair works should be evaluated in advance, in order to avoid significant costs associated to those works or, even worse, the collapse of the structure. It is therefore quite important to evaluate the Present Condition of the structure, as well its Evolution and Risk Conditions. The Present Condition is periodically checked on-site and all relevant data gathered is recorded, by filling in inspection forms, in order to perform further comparisons and analyses with previous inspections of the structure, as to eventually characterize Evolution and Risk conditions. To expedite all this process and prevent likely occurrence of errors in data collection, a monitoring tool, supported through a map-based online geographic information system (WebGIS) was developed, enabling the georeferencing of the structures concerned. This system adapts to the location of the user’s device and to the capacities of the device itself. Media data, such as photos and videos can be associated to the structural data collected. The resulting platform was successfully evaluated by the involved researchers from Portuguese National Laboratory for Civil Engineering (which are the end users of the system), and by non-expert users.

Avaliação da probabilidade de ocorrência de galgamentos não admissíveis no posto 2 do terminal de granéis líquidos do porto de Sines

espanolSe describen los procedimientos para evaluar el flujo medio de caudal de rebase en un tramo de un rompeolas a partir de las caracteristicas de la agitacion maritima incidente en el mismo tramo. Se presenta una metodologia para estimar los valores extremos de la serie temporal de la misma variable y se ilustra la aplicacion de los procedimientos descritos en el tramo del muelle oeste del puerto de Sines, que protege el puesto 2 del terminal de graneles liquidos de la accion de la agitacion maritima. Este regimen de extremos del flujo medio de caudal de rebase es fundamental para la evaluacion del riesgo de ocurrencia de rebases inadmisibles en el puesto 2. francaisLes procedures devaluation du debit moyen de debordement sur un troncon dun brise-lames de type talus sont decrites a partir des caracteristiques de l’agitation maritime incidente sur ce troncon. Une methode pour estimer les valeurs extremes de ce debordement a partir des series temporales de cette meme variable est presentee ainsi que l’application des procedures decrites au troncon de la jetee ouest du port de Sines qui protege le poste 2 du terminal de vrac liquide de l’action des vagues. Ce regime des extremes du debit moyen de debordement est fondamental pour evaluer le risque d’occurrence de debordement non-admissible au poste 2. portuguesDescrevem-se os procedimentos para avaliar o caudal medio galgado sobre um trecho de um quebra-mar de taludes a partir das carateristicas da agitacao maritima incidente no mesmo trecho. Apresenta-se uma metodologia para estimacao de valores extremos daquele caudal, partindo das series temporais da mesma variavel, e ilustram-se esses procedimentos num trecho do molhe oeste do porto de Sines que protege o posto 2 do terminal de graneis liquidos da acao da agitacao maritima. Este regime de extremos do caudal medio galgado e fundamental para a avaliacao do risco de ocorrencia de galgamentos nao admissiveis no posto 2. EnglishThe procedures to evaluate the mean wave overtopping discharge over a stretch of a rubble-mound breakwater from the characteristics of the incident sea waves are presented. A method is also presented for estimating extreme values of such discharge from the time series of the same variable. The application of the described procedures is illustrated with the evaluation of the extreme regime for the mean overtopping discharge over the stretch of the western breakwater that protects berth 2 of the port of Sines liquid bulk terminal from wave action. Such extreme regime for the mean wave overtopping discharge is fundamental for assessing the risk associated to nonadmissible overtopping at berth 2.