26 documents found, page 1 of 3
Temporal clustering of precipitation for detection of potential landslides
Banfi, Fabiola; Bevacqua, Emanuele; Rivoire, Pauline; Oliveira, Sérgio; Pinto, Joaquim G.; Ramos, Alexandre M.; Michele, Carlo deLandslides are complex phenomena that cause important impacts in vulnerable areas, including the destruction of infrastructure, environmental damage, and loss of life. The occurrence of landslide events is often triggered by rainfall episodes, single and intense ones or multiple ones occurring in sequence, i.e., clustered in time. Landslide prediction is typically obtained via process-based or empirical thresho...
Understanding the Atlantic influence on climate and vegetation dynamics in west...
Santos, Ricardo N.; Rodrigues, Teresa; Naughton, Filipa; Schefuß, Enno; Oliveira, Dulce; Moreno, João; Raposeiro, Pedro M.; Gil-Romera, GracielaPredicting the environmental impact of climate change in extremely sensitive areas, like western Iberia, requires an understanding of the long-term interactions between climate and vegetation. Here we present a novel hightemporal resolution multiproxy analysis, including plant-wax n-alkane isotope data, pollen analysis, macrocharcoal identification, chironomid and diatom records of sediments from a mountain lak...
The timing of the deglaciation in the Atlantic Iberian mountains: Insights from...
Hernández, Armand; Sáez, Alberto; Santos, Ricardo N.; Rodrigues, Teresa; Martin‐Puertas, Celia; Gil‐Romera, Graciela; Abbott, Mark; Carballeira, RafaelUnderstanding the environmental response to the last glacial termination in regions located in transitional climate zones such as the Atlantic Iberian mountains is crucial to estimate potential changes in regions affected by current glacial melting. We present an 8.5 m-long, solid last deglaciation and Holocene chronostratigraphic record including detailed sediment analysis from Lake Peix˜ao, a pro-glacial lake...
Validation of 3-day rainfall forecast at the regional scale
Melo, Raquel; Oliveira, Sandra; Tomé, Ricardo; Ramos, Alexandre M.; Oliveira, Sérgio C.Nearly half of the natural disasters in the world are due to hydro-geomorphological hazards. Therefore, rainfall forecast is a key parameter for the implementation of landslides and flash-floods early warning systems. In this work we developed a routine in R software that enables the validation of a 3-day rainfall forecast by comparison with the daily rainfall data recorded in 101 automatic meteorological stati...
The timing of the deglaciation in the Atlantic Iberian mountains: Insights from...
Hernández, Armand; Sáez, Alberto; Santos, Ricardo N.; Rodrigues, Teresa; Martin‐Puertas, Celia; Gil‐Romera, Graciela; Abbott, Mark; Carballeira, RafaelUnderstanding the environmental response to the last glacial termination in regions located in transitional climate zones such as the Atlantic Iberian mountains is crucial to estimatjavascript:void(null);e potential changes in regions affected by current glacial melting. We present an 8.5 m-long, solid last deglaciation and Holocene chronostratigraphic record including detailed sediment analysis from Lake Peixã...
Validation of 3-day rainfall forecast at the regional scale
Melo, Raquel; Oliveira, Sandra; Tomé, Ricardo; Ramos, Alexandre M.; Oliveira, SérgioNearly half of the natural disasters in the world are due to hydro-geomorphological hazards. Therefore, rainfall forecast is a key parameter for the implementation of landslides and flash-floods early warning systems. In this work we developed a routine in R software that enables the validation of a 3-day rainfall forecast by comparison with the daily rainfall data recorded in 101 automatic meteorological stati...
The timing of the deglaciation in the Atlantic Iberian mountains: Insights from...
Hernández, Armand; Sáez, Alberto; Santos, Ricardo N.; Rodrigues, Teresa; Martin‐Puertas, Celia; Gil‐Romera, Graciela; Abbott, Mark; Carballeira, RafaelUnderstanding the environmental response to the last glacial termination in regions located in transitional climate zones such as the Atlantic Iberian mountains is crucial to estimate potential changes in regions affected by current glacial melting. We present an 8.5 m-long, solid last deglaciation and Holocene chronostratigraphic record including detailed sediment analysis from Lake Peix˜ao, a pro-glacial lake...
The timing of the deglaciation in the Atlantic Iberian mountains: Insights from...
Hernández, Armand; Sáez, Alberto; Santos, Ricardo N.; Rodrigues, Teresa; Martin‐Puertas, Celia; Gil‐Romera, Graciela; Abbott, Mark; Carballeira, RafaelUnderstanding the environmental response to the last glacial termination in regions located in transitional climate zones such as the Atlantic Iberian mountains is crucial to estimate potential changes in regions affected by current glacial melting. We present an 8.5 m-long, solid last deglaciation and Holocene chronostratigraphic record including detailed sediment analysis from Lake Peixao, a pro-glacial lake ...
Impact of extreme rainfall events on landslide activity in Portugal under clima...
Araújo, Joana R.; Ramos, Alexandre M.; Soares, Pedro M.M.; Melo, Raquel; Oliveira, Sérgio C.; Trigo, Ricardo M.Rainfall is considered the most important physical process for landslide triggering in Portugal. It is expected that changes in the precipitation regimes in the region, as a direct consequence of climate change, will have influence in the occurrence of extreme rainfall events that will be more frequently, throughout the century. The aim of this study relied on the assessment of the projected future changes in t...
Landslide events in Portugal under future climate change scenarios
Araújo, Joana; Ramos, Alexandre M.; Soares, Pedro M.M.; Melo, Raquel; Oliveira, Sérgio C.; Trigo, Ricardo M.It is expected that landslide events will occur more frequently, throughout the century, as a direct consequence of climate change. The main triggering factor, over Portugal mainland, is extreme precipitation. Thus, the aim of this study relied on the assessment of the projected future changes in the extreme precipitation over Portugal mainland and quantifying the correlation between extreme rainfall events and...