243 years of reconstructed streamflow volume and identification of extreme hydroclimatic events in the Conchos River Bas
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ORIGINAL ARTICLE
243 years of reconstructed streamflow volume and identification of extreme hydroclimatic events in the Conchos River Basin, Chihuahua, Mexico Aldo Rafael Martínez‑Sifuentes1 · José Villanueva‑Díaz2 · Teodoro Carlón‑Allende3 · Juan Estrada‑Ávalos2 Received: 11 February 2020 / Accepted: 10 June 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Key message The extreme hydroclimatic events in the Conchos River Basin, are strongly associated with ocean–atmospheric phenomena such as the El Niño Southern Oscillation, Pacific Decadal Oscillation, and Atlantic Multidecadal Oscillation, the streamflow reconstruction showed the occurrence of up to 10-year droughts. Abstract Dendrochronology is a modern science used to study hydroclimatic events through the measurement and standardization of tree-rings. Long-term dendrochronological series contribute to the improvement of our knowledge of past climatic events and provide information for wise management of water resources. The objective of this study was to generate an actualized streamflow volume reconstruction with a regional chronology and identify extreme hydroclimatic events in the Conchos River Basin. We analyzed the hydroclimatic behavior of the streamflow volume through a dendrochronological network in the Basin. The regional earlywood chronology was analyzed by single correlation and principal component analysis, which allowed obtaining the transfer model to determine extreme hydroclimatic events and defined the influence of large-scale ocean–atmospheric phenomena. Nine earlywood series showed a common variance and responded significantly (r = 0.68, n = 67, p
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