383年道格拉斯冷杉重建观测到的海洋对奇里卡华山脉干旱的影响

IF 1.1 4区 农林科学 Q3 FORESTRY
J. Abella‐Gutiérrez, R. Touchan, Jehren Boehm, K. Bolles, A. Trevino, Kelly L. Swarts, L. Uliana, D. Meko
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引用次数: 0

摘要

摘要北美西南部的干旱是一种反复出现的现象。了解干旱的复发和严重程度对于该地区的可持续水资源管理至关重要。气候变量的树木年轮重建为气候变化提供了有价值的间接证据,并阐明了该地区大规模环流异常与气候之间的关系。在这里,我们根据Chiricahua山脉(亚利桑那州东南部)的Pseudotsuga menziesii在公元1634年至2017年期间的树木年轮重建了5月至7月的Palmer干旱严重程度指数(PDSI)。最干旱的时期出现在21世纪初(2000-2005年),其次是1666-1670年、1952-1956年和1729-1734年。Chiricahua山脉重建的PDSI显示出与厄尔尼诺-南方涛动的弱相关性,正如先前的研究所报道的那样,具有间歇性影响。太平洋十年振荡是Chiricahua小气候变化的主要原因,1860年至1950年期间除外,当时主要驱动因素是北大西洋振荡。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Oceanic Influence on Chiricahua Mountains Drought Observed in a 383-Year Douglas-Fir Reconstruction
ABSTRACT Drought in the North American Southwest is a recurring phenomenon. The knowledge of drought recurrence and severity is crucial for sustainable water resource management in the region. Tree-ring reconstructions of climate variables provide valuable indirect evidence of climate variability and elucidate the relationship between large-scale circulation anomalies and the climate in the region. Here we have developed a May–July Palmer Drought Severity Index (PDSI) reconstruction from tree-ring chronologies of Pseudotsuga menziesii from the Chiricahua Mountains (southeastern Arizona) for the period 1634–2017 CE. The driest period occurred at the beginning of the 21st Century (2000–2005), followed by 1666–1670, 1952–1956, and 1729–1734. Reconstructed PDSI of the Chiricahua Mountains shows a weak correlation with the El Niño-Southern Oscillation, with intermittent influence as previous studies have reported. The Pacific Decadal Oscillation accounts for the majority of the variability in the Chiricahua hydroclimate, except for the period from 1860–1950 when the predominant driver was the North Atlantic Oscillation.
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来源期刊
Tree-Ring Research
Tree-Ring Research 农林科学-林学
CiteScore
2.40
自引率
12.50%
发文量
15
审稿时长
>36 weeks
期刊介绍: Tree-Ring Research (TRR) is devoted to papers dealing with the growth rings of trees and the applications of tree-ring research in a wide variety of fields, including but not limited to archaeology, geology, ecology, hydrology, climatology, forestry, and botany. Papers involving research results, new techniques of data acquisition or analysis, and regional or subject-oriented reviews or syntheses are considered for publication. Scientific papers usually fall into two main categories. Articles should not exceed 5000 words, or approximately 20 double-spaced typewritten pages, including tables, references, and an abstract of 200 words or fewer. All manuscripts submitted as Articles are reviewed by at least two referees. Research Reports, which are usually reviewed by at least one outside referee, should not exceed 1500 words or include more than two figures. Research Reports address technical developments, describe well-documented but preliminary research results, or present findings for which the Article format is not appropriate. Book or monograph Reviews of 500 words or less are also considered. Other categories of papers are occasionally published. All papers are published only in English. Abstracts of the Articles or Reports may be printed in other languages if supplied by the author(s) with English translations.
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