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Eugenio Molina Navarro

Hydrological modeling of climate change impacts in a Tropical River Basin: A case study of the Cauto River, Cuba

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  • Yalina Montecelos-Zamora, Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE)
  • ,
  • Tereza Cavazos, Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE)
  • ,
  • Thomas Kretzschmar, Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE)
  • ,
  • Enrique R. Vivoni, Arizona State University
  • ,
  • Gerald Corzo, UNESCO-IHE Institute for Water Education
  • ,
  • Eugenio Molina-Navarro

The soil and water assessment tool (SWAT) model was applied for the first time in Cuba to assess the potential impacts of climate change on water availability in the Cauto River basin. The model was calibrated (and validated) for the 2001-2006 (2007-2010) period at a monthly timescale in two subbasins La Fuente and Las Coloradas, representative of middle and upper sections of the Cauto basin; the calibrated models showed good performance. The output available for the regional climate Model RegCM4.3 was used to force the calibrated SWAT models to simulate a baseline (1970-2000) period and near-future (2015-2039) hydrologic regimes under the representative concentration pathway (RCP) 8.5 emission scenario. The future projections suggest regional increases of 1.5 °C in mean annual temperature and a 38% decrease in mean annual precipitation in the subbasins. These changes translate to possible reductions in the annual streamflow of up to 61% with respect to the baseline period, whereas the aquifer recharge in the basin is expected to decrease up to 58%, with a consequent reduction of groundwater flow, especially during the boreal summer wet season. These projection scenarios should be of interest to water resources managers in tropical regions.

Original languageEnglish
Article number1135
JournalWater (Switzerland)
Volume10
Issue9
ISSN2073-4441
DOIs
Publication statusPublished - 25 Aug 2018

    Research areas

  • Climate change, Cuba, Rainfall-runoffmodeling, RegCM4.3, SWAT, Water management

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