气候变化领域集成服务门户(CCPortal): Late summer temperature variability for the Southern Rocky Mountains (USA) since 1735 CE: applying blue light intensity to low-latitude Picea engelmannii Parry ex Engelm

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DOI	10.1007/s10584-020-02772-9
	Late summer temperature variability for the Southern Rocky Mountains (USA) since 1735 CE: applying blue light intensity to low-latitude Picea engelmannii Parry ex Engelm
	Heeter K.J.; Harley G.L.; Maxwell J.T.; McGee J.H.; Matheus T.J.
发表日期	2020
ISSN	0165-0009
起始页码	965
结束页码	988
卷号	162 期号:2
英文摘要	Our study examines the application of using blue intensity (BI) methods to develop a late summer maximum temperature (Tmax) reconstruction for the Southern Rocky Mountains—a mid-latitude (i.e., 36° N), arid region in North America. We reconstruct August–September (AS) Tmax for the period 1735–2015 CE using a composite latewood BI (LWB) Engelmann spruce (Picea engelmannii Parry ex Engelm.) chronology from multiple sites across the Sangre de Cristo Mountains in Northern New Mexico, USA. This study presents the first BI-derived temperature reconstruction for the lower mid-latitudes (30–45° N) of North America. We compare the climate response of multiple tree-ring parameters: LWB, earlywood BI (EWB), ∆BI (earlywood BI minus latewood BI), ring width (RW), and maximum latewood density (MXD). Of all parameters, the site-composite LWB and ∆BI chronologies show the strongest correlations with AS Tmax. Reconstructed AS Tmax demonstrates fluctuating warm and cool periods during the latter portion of the Little Ice Age (ca. 1730–1850) and pronounced warming through the early to mid-twentieth century (ca. 1920–1950s). The reconstruction also documents substantial warming over the last decade, the trend of which appears to be anomalous within the context of the past ca. 280 years. We highlight the potential for BI methods to be successfully used at high-elevation, mid-latitude locations where temperature proxy datasets are scarce or non-existent. As many places across the mid-latitudes lack contiguous, temporally resolved, decadal-scale paleotemperature proxies, we suggest here that BI methods can be effective at improving the spatial gaps in the Northern Hemisphere temperature proxy network. © 2020, Springer Nature B.V.
英文关键词	Blue intensity; Climate reconstruction; Dendrochronology; North American Southwest; Paleoclimatology
语种	英语
scopus关键词	Climate change; Climate models; Maximum latewood density; Maximum temperature; Northern Hemispheres; Paleotemperature proxy; Southern rocky mountains; Summer temperature; Temperature reconstruction; Temporally resolved; Landforms; air temperature; climate effect; coniferous tree; correlation; high temperature; paleotemperature; parameterization; proxy climate record; reconstruction; summer; tree ring; twentieth century; warming; wood; New Mexico; Rocky Mountains; Sangre de Cristo Mountains; United States; Jatropha cardiophylla; Picea engelmannii
来源期刊	Climatic Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147092
作者单位	Idaho Tree-Ring Laboratory, Department of Geography, University of Idaho, Moscow, ID 83843, United States; Environmental Tree-Ring Laboratory, Department of Geography, Indiana University, Bloomington, IN 4740, United States; Harvard Forest, Harvard University, Petersham, MA 01336, United States; Cal-Dendro Tree-Ring Laboratory, Department of Geography and Environment, California State University, Fullerton, Fullerton, CA 92831, United States
推荐引用方式 GB/T 7714	Heeter K.J.,Harley G.L.,Maxwell J.T.,et al. Late summer temperature variability for the Southern Rocky Mountains (USA) since 1735 CE: applying blue light intensity to low-latitude Picea engelmannii Parry ex Engelm[J],2020,162(2).
APA	Heeter K.J.,Harley G.L.,Maxwell J.T.,McGee J.H.,&Matheus T.J..(2020).Late summer temperature variability for the Southern Rocky Mountains (USA) since 1735 CE: applying blue light intensity to low-latitude Picea engelmannii Parry ex Engelm.Climatic Change,162(2).
MLA	Heeter K.J.,et al."Late summer temperature variability for the Southern Rocky Mountains (USA) since 1735 CE: applying blue light intensity to low-latitude Picea engelmannii Parry ex Engelm".Climatic Change 162.2(2020).