This issue of RIBAGUA presents two important studies related to the management and planning of water resources in Latin America. The first analyzes extreme wave conditions along the coasts of Costa Rica using calibrated reanalysis data, providing a solid scientific basis for coastal design and risk mitigation in the face of extreme events. The second article examines the potential impact of increased salinity at Argentine water intakes from the Río de la Plata, as a consequence of reduced flow in the Paraná River—a situation that poses significant challenges for the region’s drinking water supply. Both studies highlight the importance of an integrated and up-to-date understanding of water dynamics in the context of climate change and hydrological variability.

 Articles

• Potencial impacto de salinidad en las tomas argentinas del Río de la Plata debido al descenso del caudal del Río Paraná | 
  Potential impact of salinity on argentinean intakes in the Río de la Plata due to the decrease in the flow of Panama River
  Pablo Sebastián Chiesa, Diego Norberto Bottelli y Juan Martín Marcenaro
  DOI 10.1080/23863781.2024.2423932

• Análisis de oleaje extremo para las costa de Costa Rica basado en reanálisis calibrado y análisis comparativo | 
  Extreme wave analysis for Costa Rican coasts based on calibrated reanalysis and comparative analysis
  Henry Alfaro-Chavarría, Javier Zumbado-González y Georges Govaere-Vicarioli
  DOI 10.1080/23863781.2025.2474952
  

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