164161 20251127172930.0 doi 10.5194/cp-21-2205-2025 sideral 146336 ART-2025-146336 eng Marín-Martín, Marcos A five-century tree-ring record from Spain reveals recent intensification of western Mediterranean precipitation extremes 2025 Abstract. The Mediterranean basin, a recognized climate change hotspot, faces increasing hydroclimatic pressures, particularly from severe drought and precipitation events. To assess contemporary changes and potentially manage future impacts, it is crucial to understand the long-term context of this variability beyond the relatively short instrumental record. This study utilizes tree-ring records to reconstruct past hydroclimate in the Iberian Range of eastern Spain, a water-sensitive Mediterranean environment. We present a well-replicated tree-ring width chronology from Pinus sylvestris and Pinus nigra trees that calibrates and verifies significantly against cumulative instrumental precipitation over a 320 d period ending in June (r = 0.749; p < 0.01). The resulting 520-year reconstruction reveals substantial multi-centennial variability in precipitation and reveals an increase in the frequency and intensity of hydroclimatic extremes (both wet and dry) during the late 20th and early 21st centuries compared to the longer-term baseline. The reconstruction has a spatial representativeness centred over eastern and central Iberia and covaries with independent historical drought indices derived from rogation ceremony records during the late 18th and early 19th centuries. The documented intensification of hydroclimatic extremes is consistent with climate change projections and provides a baseline for evaluating ecosystem resilience and water resource vulnerability. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/MICIU/PID2024-160542OB-I00 info:eu-repo/semantics/openAccess by https://creativecommons.org/licenses/by/4.0/deed.es info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Tejedor, Ernesto Benito, Gerardo Saz, Miguel A. Universidad de Zaragoza (orcid)0000-0001-8979-0253 Barriendos, Mariano Martínez del Castillo, Edurne Esper, Jan Luis, Martín de Universidad de Zaragoza (orcid)0000-0002-7585-3636 3006 430 Universidad de Zaragoza Dpto. Geograf. Ordenac.Territ. Área Geografía Física 3006 010 Universidad de Zaragoza Dpto. Geograf. Ordenac.Territ. Área Análisis Geográfico Regi. 21, 11 (2025), 2205-2223 Clim. past. Climate of the Past 1814-9324 6372729 http://zaguan.unizar.es/record/164161/files/texto_completo.pdf Versión publicada 2779523 http://zaguan.unizar.es/record/164161/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:164161 articulos driver 2025-11-27-15:16:13 ARTICLE