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<p>This study carries out an analysis of a precipitation diminution in Tenerife, located in the Canary Islands. The research focuses on the apparent reduction in precipitation occurring during the 2020s compared to historical climate patterns, a trend that may be accelerated by the impact of climate change. Mean precipitation during the period 1990–2022 undergoes significant reductions, with December experiencing the most pronounced decreases. Analyzing the time series from 1990 to 2019 with respect to 2020 to 2022, there is a 33.43% reduction in average annual precipitation on the island, with the most significant decreases in the higher altitude regions. Historical observations at long-term weather observation stations confirm spatio-temporal fluctuations in this island’s region. The northern slope of the island receives a higher average annual rainfall. However, the results show that the southern slope experiences greater reductions when comparing the two time series analyses. These new trends defy traditional elevation-precipitation relations and therefore make water-resource planning a complex issue. The conclusions derived from this analysis confirm the importance of developing studies and strategies adapted to each island’s context, as in the case of Tenerife, where its complex orography influences the evolution of precipitation. An adaptable approach proposed for countering this challenge prioritizes improving water-use efficiency and employing nature-based solutions, such as reforestation and wetland restoration programs.</p>

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Prolonged drought in Tenerife (1990–2022): altitudinal precipitation trends and challenges for water management in island territories

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年4月29日

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  • Juan C. Santamarta,
  • Noelia Cruz-Pérez,
  • Susana Clavijo-Núñez,
  • Alejandro García-Gil,
  • César Paradinas-Blázquez

摘要

This study carries out an analysis of a precipitation diminution in Tenerife, located in the Canary Islands. The research focuses on the apparent reduction in precipitation occurring during the 2020s compared to historical climate patterns, a trend that may be accelerated by the impact of climate change. Mean precipitation during the period 1990–2022 undergoes significant reductions, with December experiencing the most pronounced decreases. Analyzing the time series from 1990 to 2019 with respect to 2020 to 2022, there is a 33.43% reduction in average annual precipitation on the island, with the most significant decreases in the higher altitude regions. Historical observations at long-term weather observation stations confirm spatio-temporal fluctuations in this island’s region. The northern slope of the island receives a higher average annual rainfall. However, the results show that the southern slope experiences greater reductions when comparing the two time series analyses. These new trends defy traditional elevation-precipitation relations and therefore make water-resource planning a complex issue. The conclusions derived from this analysis confirm the importance of developing studies and strategies adapted to each island’s context, as in the case of Tenerife, where its complex orography influences the evolution of precipitation. An adaptable approach proposed for countering this challenge prioritizes improving water-use efficiency and employing nature-based solutions, such as reforestation and wetland restoration programs.