@article{ArguellodeSouzaSamprognaMohorGuzmanAriasetal.2023,
  author    = {Arguello de Souza, Felipe Augusto and Samprogna Mohor, Guilherme and Guzman Arias, Diego Alejandro and Sarmento Buarque, Ana Carolina and Taffarello, Denise and Mendiondo, Eduardo Mario},
  title     = {Droughts in S{\~a}o Paulo},
  series = {Urban water journal},
  volume    = {20},
  journal   = {Urban water journal},
  number    = {10},
  publisher = {Taylor \& Francis},
  address   = {London [u.a.]},
  issn      = {1573-062X},
  doi       = {10.1080/1573062X.2022.2047735},
  pages     = {1682 -- 1694},
  year      = {2023},
  abstract  = {Literature has suggested that droughts and societies are mutually shaped and, therefore, both require a better understanding of their coevolution on risk reduction and water adaptation. Although the Sao Paulo Metropolitan Region drew attention because of the 2013-2015 drought, this was not the first event. This paper revisits this event and the 1985-1986 drought to compare the evolution of drought risk management aspects. Documents and hydrological records are analyzed to evaluate the hazard intensity, preparedness, exposure, vulnerability, responses, and mitigation aspects of both events. Although the hazard intensity and exposure of the latter event were larger than the former one, the policy implementation delay and the dependency of service areas in a single reservoir exposed the region to higher vulnerability. In addition to the structural and non-structural tools implemented just after the events, this work raises the possibility of rainwater reuse for reducing the stress in reservoirs.},
  language  = {en}
}
@article{GuzmanAriasSamprognaMohorMendiondo2022,
  author    = {Guzman Arias, Diego Alejandro and Samprogna Mohor, Guilherme and Mendiondo, Eduardo Mario},
  title     = {Multi-driver ensemble to evaluate the water utility business interruption cost induced by hydrological drought risk scenarios in Brazil},
  series = {Urban water journal},
  journal   = {Urban water journal},
  publisher = {Routledge, Taylor \& Francis Group},
  address   = {Abingdon},
  issn      = {1573-062X},
  doi       = {10.1080/1573062X.2022.2058564},
  pages     = {15},
  year      = {2022},
  abstract  = {Climate change and increasing water demand in urban environments necessitate planning water utility companies' finances. Traditionally, methods to estimate the direct water utility business interruption costs (WUBIC) caused by droughts have not been clearly established. We propose a multi-driver assessment method. We project the water yield using a hydrological model driven by regional climate models under radiative forcing scenarios. We project water demand under stationary and non-stationary conditions to estimate drought severity and duration, which are linked with pricing policies recently adopted by the Sao Paulo Water Utility Company. The results showed water insecurity. The non-stationary trend imposed larger differences in the drought resilience financial gap, suggesting that the uncertainties of WUBIC derived from demand and climate models are greater than those associated with radiative forcing scenarios. As populations increase, proactively controlling demand is recommended to avoid or minimize reactive policy changes during future drought events, repeating recent financial impacts.},
  language  = {en}
}