Temperature variability of the Iberian Range since 1602 inferred from tree-ring records

Tejedor, E. (Universidad de Zaragoza) ; Saz, M.A. (Universidad de Zaragoza) ; Cuadrat, J.M. (Universidad de Zaragoza) ; Esper, J. ; de Luis, M. (Universidad de Zaragoza)

Resumen: Tree rings are an important proxy to understand the natural drivers of climate variability in the Mediterranean Basin and hence to improve future climate scenarios in a vulnerable region. Here, we compile 316 treering width series from 11 conifer sites in the western Iberian Range. We apply a new standardization method based on the trunk basal area instead of the tree cambial age to develop a regional chronology which preserves high to low-frequency variability. A new reconstruction for the 1602–2012 period correlates at ??0.78 with observational September temperatures with a cumulative mean of the 21 previous months over the 1945– 2012 calibration period. The new IR2Tmax reconstruction is spatially representative for the Iberian Peninsula and captures the full range of past Iberian Range temperature variability. Reconstructed longterm temperature variations match reasonably well with solar irradiance changes since warm and cold phases correspond with high and low solar activity, respectively. In addition, some annual temperature downturns coincide with volcanic eruptions with a 3-year lag.

Idioma: Inglés

DOI: 10.5194/cp-2016-9

Año: 2017

Publicado en: Climate of the Past Discussions 13 (2017), 93-105
ISSN: 1814-9359

Factor impacto SCIMAGO: 0.166 - Stratigraphy (Q3) - Global and Planetary Change (Q4) - Paleontology (Q4)

Financiación: info:eu-repo/grantAgreement/ES/DGA/Clima
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CGL2011-28255
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CGL2015-69985

Tipo y forma: Article (Published version)

Área (Departamento): Área Geografía Física (Dpto. Geograf. Ordenac.Territ.)
Área (Departamento): Área Análisis Geográfico Regi. (Dpto. Geograf. Ordenac.Territ.)