Academic Journal
Hydroclimate and ENSO Variability Recorded by Oxygen Isotopes from Tree Rings in the South American Altiplano
| العنوان: | Hydroclimate and ENSO Variability Recorded by Oxygen Isotopes from Tree Rings in the South American Altiplano |
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| المؤلفون: | Rodriguez‐caton, Milagros, Andreu‐hayles, Laia, Daux, Valérie, Vuille, Mathias, Varuolo‐clarke, Arianna, Oelkers, Rose, Christie, Duncan A., d'Arrigo, Rosanne, Morales, Mariano, S, Rao, Mukund, Palat, Srur, Ana, M, Vimeux, Françoise, Villalba, Ricardo |
| المساهمون: | Lamont-Doherty Earth Observatory (LDEO), Columbia University New York, Centre for Ecological Research and Applied Forestries = Centre de Recerca Ecologica i Aplicacions Forestals (CREAF), Consejo Superior de Investigaciones Cientificas España = Spanish National Research Council Spain (CSIC), Institució Catalana de Recerca i Estudis Avançats = Catalan Institution for Research and Advanced Studies (ICREA), Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), State University of New York (SUNY), Universidad Austral de Chile, Center for Climate and Resilience Research Conception ((CR)2), Universidad de Concepción = University of Concepción Chile (UdeC), Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales Mendoza (CONICET-IANIGLA), Consejo Nacional de Investigaciones Científicas y Técnicas Buenos Aires (CONICET)-Universidad Nacional de Cuyo Mendoza (UNCUYO), Universidad Continental Huancayo, Peru, University Corporation for Atmospheric Research (UCAR), University of California Davis (UC Davis), University of California (UC), Hydrosciences Montpellier (HSM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS-PSL), Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X), Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), This research was supported by the project THEMES funded by Foundation BNP Paribas Climate Initiative program, United States National Science Foundation (OISE-1743738, PLR-1504134, AGS-1702789, and AGS-1702439), and Lamont-Doherty Earth Observatory Climate Center. M. Rodriguez-Caton and L. Andreu-Hayles were partly funded by the Columbia University’s Center for Climate and Life, and L. Andreu-Hayles also by NSF AGS-1903687. D. A. Christie was supported by Agencia Nacional de Investigación y Desarrollo (FONDECYT 1201411 and FONDAP 15110009). M. S. Morales was partly funded by Agencia Nacional de Promoción Científica y Tecnológica PICT 2013-1880, Consejo Nacional de Investigaciones Científicas y Técnicas de Argentina (PIP CONI-CET 11220130100584), and Proyecto Fondo Nacional de Desarrollo Científico, Tecnológico y de Innovación Tecnológica a Banco Mundial (FONDECYT-BMINC. INV 039-2019). M. P. Rao was supported by the NOAA Climate and Global Change Postdoctoral Fellowship Program, administered by UCAR's Cooperative Programs for the Advancement of Earth System Science (CPAESS) under award #NA18NWS4620043B. |
| المصدر: | ISSN: 0094-8276. |
| بيانات النشر: | CCSD American Geophysical Union |
| سنة النشر: | 2022 |
| المجموعة: | Université de Montpellier: HAL |
| مصطلحات موضوعية: | [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment |
| الوصف: | International audience ; Hydroclimate variability in tropical South America is strongly regulated by the South American Summer Monsoon (SASM). However, past precipitation changes are poorly constrained due to limited observations and high-resolution paleoproxies. We found that summer precipitation and the El Niño - Southern Oscillation (ENSO) variability are well registered in tree-ring stable oxygen isotopes (δ18OTR) of Polylepis tarapacana in the Chilean and Bolivian Altiplano in the Central Andes (18-22ºS, ~4500 m a.s.l.), with the northern forests having the strongest climate signal. More enriched δ18OTR values were found at the southern sites, likely due to the increasing aridity towards the south-west of the Altiplano. The climate signal of P. tarapacana δ18OTR is the combined result of moisture transported from the Amazon Basin, modulated by the SASM, ENSO and local evaporation, and emerges as a novel tree-ring climate proxy for the southern tropical Andes. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | IRD: fdi:010084396 |
| DOI: | 10.1029/2021GL095883 |
| الاتاحة: | https://hal.science/hal-03566432 https://hal.science/hal-03566432v1/document https://hal.science/hal-03566432v1/file/Geophysical%20Research%20Letters%20-%202022%20-%20Rodriguez%25u2010Caton%20-%20Hydroclimate%20and%20ENSO%20Variability%20Recorded%20by%20Oxygen%20Isotopes%20from.pdf https://doi.org/10.1029/2021GL095883 |
| Rights: | http://creativecommons.org/licenses/by/ ; info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.C57F6571 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1029/2021GL095883 |
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