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- Assessing sea level rise exposure and social vulnerability scenarios for sustainable land use planningPublication . Trindade, Jorge; Zêzere, José; Reis, Eusébio; Rocha, Jorge; Santos, Pedro Pinto; Garcia, Ricardo; Oliveira, Sérgio; Pereira, SusanaThe climate change scenarios, with sea level rise and increased frequency of extreme hydro- meteorological events, associated with the growing pressure on the coastal zone, highlight the need to improve the ability to predict risk factors under future scenarios and assess impacts in these territories at global and national level. Starting from the current scenario, the High Waters research project intends to contribute to the definition of a roadmap of adaptation and mitigation measures for coastal risks in the medium and long term. Taking 2040, 2070 and 2100 as time stamps it aims at analysing the future hazard, exposure and vulnerability over Portuguese coastal areas. The project aims also to elaborate municipal risk profiles to support proposals of management strategies for coastal zones, using various methods, including fieldwork, statistical and remote sensing data processing and application of machine learning techniques.
- A comprehensive approach to understanding flood risk drivers at the municipal levelPublication . Santos, Pedro Pinto; Pereira, Susana; Zêzere, José; Tavares, Alexandre Oliveira; Reis, Eusébio; Garcia, Ricardo A C; Oliveira, SérgioDuring the period 1998–2017, floods were responsible for 11% of the loss of life and 23% of the economic loss caused by climate-related and geophysical-related disasters worldwide. An integrated and effective definition of flood risk management strategies therefore still requires synthesized and comprehensive knowledge about the driving forces of flood risk. In this study, 278 Portuguese municipalities are analyzed and classified according to flood hazard, exposure, and vulnerability. After evaluating the three components that describe risk, an index of the flood risk is calculated and a cluster analysis is further performed to understand the role of the risk drivers (hazard, exposure, and vulnerability) in each municipality. The proposed approach therefore provides flood risk indexes on a municipal basis, which are built upon different sources of both cell-by-cell data and an aggregation of municipal-level data that has been statistically validated. Municipalities both in the NW part of the country and along the valleys of major rivers demonstrate a significant superimposition of high levels of exposure and hazard, while vulnerability presents a disperse pattern throughout the country. The results obtained using this approach should contribute to the diversification of flood risk management strategies. This is still lacking in the majority of the national-level flood risk governance processes, namely those strategies that focus on the contingency of daily activities and those aiming at a long-term reduction of the exposure, vulnerability, and hazard components that shape flood disasters.