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Trends in extreme rainfall and hydrogeometeorological disasters in the Metropolitan Area of Sao Paulo: a review

Texto completo
Marengo, Jose A. [1] ; Alves, Lincoln M. [2] ; Ambrizzi, Tercio [3] ; Young, Andrea [1] ; Barreto, Naurinete J. C. [2] ; Ramos, Andrea M. [4]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] CEMADEN, Brazilian Natl Ctr Monitoring & Early Warning Nat, BR-12245320 Sao Jose Dos Campos, SP - Brazil
[2] CCST INPE, Earth Syst Sci Ctr, Natl Inst Space Res, Sao Jose Dos Campos, SP - Brazil
[3] Univ Sao Paulo, Dept Atmospher Sci, IAG USP, Sao Paulo - Brazil
[4] INMET, Natl Inst Meteorol, Brasilia, DF - Brazil
Número total de Afiliações: 4
Tipo de documento: Artigo de Revisão
Fonte: Annals of the New York Academy of Sciences; FEB 2020.
Citações Web of Science: 0

Our paper reviews recent progress in the study and understanding of observed trends in extreme rainfall events in the Metropolitan Area of Sao Paulo (MASP). These are discussed in relation to hydrometeorological hazards that trigger natural disasters, such as flash floods, landslides, and droughts, that affect the population and local economies. A review of the most updated literature on rainfall and extremes in the MASP shows a significant increase in the total volume of rainy-season rainfall during the last seven decades. While there were practically no days with heavy rain (more than 50 mm) in the 1950s, these days have been occurring two to five times a year in the last 10 years. This, together with the inappropriate occupation of risky areas, such as slopes and banks of watercourses, leads to inundation, flooding, and landslides. Changes in extremes can be partly due to natural climate variability but can also be related to global warming and/or urbanization. There is ample evidence of an increasing risk of rainfall-related hazards in the MASP. This is particularly so for landslides in vulnerable areas. Exposure will continue to lead to risk increases. This calls for significant improvement in climate and disaster risk reduction and management efforts in the MASP region. (AU)

Processo FAPESP: 14/50848-9 - INCT 2014: INCT para Mudanças Climáticas (INCT-MC)
Beneficiário:Jose Antonio Marengo Orsini
Linha de fomento: Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Temático
Processo FAPESP: 15/03804-9 - Governança ambiental da macrometrópole paulista face à variabilidade climática
Beneficiário:Pedro Roberto Jacobi
Linha de fomento: Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Temático
Processo FAPESP: 15/50122-0 - Fenômenos dinâmicos em redes complexas: fundamentos e aplicações
Beneficiário:Elbert Einstein Nehrer Macau
Linha de fomento: Auxílio à Pesquisa - Temático