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Meteorological driving mechanisms and human impacts of the February 1979: extreme hydro-geomorphological event in Western Iberia
| Nome: | Descrição: | Tamanho: | Formato: | |
|---|---|---|---|---|
| Rebelo et al (2018) | 30.92 MB | Adobe PDF |
Orientador(es)
Resumo(s)
The large number of floods and landslides that occurred on 5–16 February 1979 in Portugal
was a major hydro-geomorphologic extreme event according to the DISASTER database in terms
of number of displaced people. The February 1979 event is the top ranked episode in terms of the
total number of evacuated people (4244), displaced people (14,322) and also on the number of days
of event duration (12 days) for the period 1865–2015. In this event, 62 damaging floods and five
damaging landslides causing eight fatalities were recorded in Portugal. This event was driven by
an unusually intense atmospheric forcing mechanism acting at different time scales. Despite the
intense magnitude and the widespread impact on the population, this event has not been studied in
detail. In this study, we show that the precipitation period of February 1979 had produced several
multi-day accumulated precipitation events over the Portuguese continental territory, ranking among
the top 10 events observed between 1950–2008. Additionally, most of the precipitation from this event
occured in days in which atmospheric circulation was dominated by “wet” circulation weather types
(CWTs), namely, cyclonic (C), west (W) or southwest (SW) types.
Descrição
Palavras-chave
Floods Landslides DISASTER database Weather types Synoptic analysis Atmospheric rivers
Contexto Educativo
Citação
Rebelo, L., Ramos, A. M., Pereira, S.,Trigo, R. M. (2018). Meteorological driving mechanisms and human impacts of the February 1979: extreme hydro-geomorphological event in Western Iberia. Water , 10, 454.
Editora
MDPI