Water Supply Basins of São Paulo Metropolitan Region: Hydro-Climatic Characteristics of the 2013–2015 Water Crisis

Détails

Ressource 1Télécharger: Milano_2018_Water_SP_water crisis.pdf (7325.92 [Ko])
Etat: Serval
Version: Final published version
ID Serval
serval:BIB_B2187FF1FD53
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Water Supply Basins of São Paulo Metropolitan Region: Hydro-Climatic Characteristics of the 2013–2015 Water Crisis
Périodique
Water
Auteur(s)
Milano M., Reynard E., Muniz-Miranda G., Guerrin J.
ISSN
2073-4441
Statut éditorial
Publié
Date de publication
25/10/2018
Peer-reviewed
Oui
Volume
10
Numéro
11
Pages
NA
Langue
anglais
Résumé
São Paulo metropolitan region experienced an acute water crisis between 2013 and 2015. According to the Brazilian and international press, it was due to climatic, anthropogenic, and water management factors. This paper assesses the hydro-climatic characteristics of the crisis by focusing on the Alto-Tietê basin and the headwater of the Piracicaba-Capivari-Jundiaí (PCJ) basin that supply 70% of the water consumed in the metropolis. Based on 16 rain-gauge stations, 5 runoff-gauge stations, and several statistical analyses carried over the 1951–2015 period, this assessment shows that the 2013–2015 hydro-climatic crisis resulted from a large number of days without rain in the north of the Alto-Tietê basin and to less intense precipitation events in the headwaters of the PCJ basin during the austral spring 2013 and the year 2014. It also defines a return period of 98 years for observed river flows in 2014. Despite the rare nature of this hydrological drought, the need for efficient water saving policies is brought forward.
Mots-clé
São Paulo, Brazil, water scarcity, hydrological drought, low-flow frequency, low-flow threshold
Open Access
Oui
Création de la notice
29/10/2018 10:34
Dernière modification de la notice
08/05/2019 23:55
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