Autor segons l'article: Vegas-Vilarrubia, T; Corella, JP; Sigro, J; Rull, V; Dorado-Linan, I; Valero-Garces, B; Gutierrez-Merino, E
Departament: Geografia
Autor/s de la URV: Sigro Rodríguez, Francisco Javier
Paraules clau: Water resources Transfer function model North-atlantic oscillation Little ice age Climate warming Autumn precipitation Authigenic varves water resources transfer function model southern-oscillation sediment record pre-pyrenees multidecadal oscillation little ice age last millennium laminated sediments iberian peninsula climate warming climate variability central spain autumn precipitation
Resum: The Mediterranean region is expected to be highly impacted by global warming, although the uncertainty of future scenarios, particularly about precipitation patterns remains quite large. To better predict shifts in its current climate system and to test models, more regional climate records are needed spanning longer than the instrumental period. Here we provide a high-resolution reconstruction of Autumn precipitation for the Central Pyrenees since 1500 CE based on calcite sublayer width from from Montcortès Lake (Central southern Pyrenees) varved sediments. The 500-yr calcite data series was detrended and calibrated with instrumental climate records by applying correlations and cross-correlations to regional precipitation anomalies. Highest relationships were obtained between a composite calcite series and autumn precipitation anomalies for the complete calibration period (1900-2002) and for the two halves of the full period. Applied statistical tests were significant, evidencing that the climatic signal could be reconstructed. The reconstructed precipitation anomalies show interdecadal shifts, and rainfall decrease within the coldest period of the LIA and during the second half of the 20th century, probably associated to current Global Warming. Neither increasing nor decreasing linear trends or periods of extreme precipitation events were identified. Our results are coherent with other palaeohydrological reconstructions for northern Iberian Peninsula. Correlations between the predicted autumn precipitation and the main teleconnections -NAO, ENSO and WEMO- were weak, although a potential relationship with the Atlantic Multidecadal Oscillation (AMO) pattern is suggested. The obtained reconstruction provides the first estimations of regional autumn precipitation shifts in the Central Pyrenees and is one of the few reconstructions that cover annual-to-century scale climate variability of precipitation in the Mediterranean region from the end of the Litte Ice Age (LIA) to the current period of Global Warming.Copyright © 2021. Published by Elsevier B.V.
Àrees temàtiques: Zootecnia / recursos pesqueiros Waste management and disposal Saúde coletiva Química Pollution Odontología Nutrição Medicina veterinaria Medicina iii Medicina ii Medicina i Materiais Matemática / probabilidade e estatística Interdisciplinar Historia Geografía Geociências Farmacia Environmental sciences Environmental engineering Environmental chemistry Ensino Engenharias iii Engenharias ii Engenharias i Enfermagem Direito Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Ciência da computação Biotecnología Biodiversidade Astronomia / física
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: javier.sigro@urv.cat javier.sigro@urv.cat
Identificador de l'autor: 0000-0003-0969-0338 0000-0003-0969-0338
Data d'alta del registre: 2024-09-07
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://www.sciencedirect.com/science/article/pii/S0048969722008658
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Science Of The Total Environment. 826 153773-153773
Referència de l'ítem segons les normes APA: Vegas-Vilarrubia, T; Corella, JP; Sigro, J; Rull, V; Dorado-Linan, I; Valero-Garces, B; Gutierrez-Merino, E (2022). Regional precipitation trends since 1500 CE reconstructed from calcite sublayers of a varved Mediterranean lake record (Central Pyrenees). Science Of The Total Environment, 826(), 153773-153773. DOI: 10.1016/j.scitotenv.2022.153773
DOI de l'article: 10.1016/j.scitotenv.2022.153773
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2022
Tipus de publicació: Journal Publications
Repositori URV