气候变化领域集成服务门户(CCPortal): Multivariate Climate Field Reconstructions Using Tree Rings for the Northeastern United States

CCPortal

DOI	10.1029/2019JD031619
	Multivariate Climate Field Reconstructions Using Tree Rings for the Northeastern United States
	Pearl J.K.; Anchukaitis K.J.; Pederson N.; Donnelly J.P.
发表日期	2020
ISSN	2169897X
卷号	125 期号:1
英文摘要	High-resolution paleoclimate records are essential for improving our understanding of internal variability and the detection and attribution of forced climate system responses. The densely populated northeastern United States is at risk from increasing temperatures, severe droughts, and extreme precipitation, but the region has limited annual and seasonal-resolution paleoclimate records beyond the instrumental record. Chamaecyparis thyoides, L. (B.S.P.), Atlantic white cedar, a wetland conifer found within 200 km of the Atlantic coastline of the United States, is a promising tree-ring proxy that can fill in these data gaps. Here, we develop and analyze a new network of Atlantic white cedar tree-ring chronologies across the northeastern United States and demonstrate that site selection is important for regional paleoclimate reconstructions. Ring width variability reflects winter through summer temperatures at inland and hydrologically stable sites in the northernmost section of the species' range. Ombrotrophic sites along the coast record hydrological signals and correlate with growing season precipitation. We demonstrate skillful regional climate field reconstructions for the last several centuries and show the increased skill from incorporating our moisture sensitive sites into broad-scale products like the North American Drought Atlas. This comprehensive understanding of the species' climate responses leads to a tree-ring network that provides the long-term multivariate climate context at multidecadal and centennial time scales for the large-scale ocean-atmospheric processes that influence the climate of the region. We use this network to examine the covariance of temperature and drought across the New England area over the past two centuries. © 2019. American Geophysical Union. All Rights Reserved.
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186237
作者单位	Department of Geosciences, University of Arizona, Tucson, AZ, United States; Laboratory of Tree-Ring Research, University of Arizona, Tucson, AZ, United States; Woods Hole Oceanographic Institution, Woods Hole, MA, United States; School of Geography and Development, University of Arizona, Tucson, AZ, United States; Harvard Forest, Harvard University, Petersham, MA, United States
推荐引用方式 GB/T 7714	Pearl J.K.,Anchukaitis K.J.,Pederson N.,et al. Multivariate Climate Field Reconstructions Using Tree Rings for the Northeastern United States[J],2020,125(1).
APA	Pearl J.K.,Anchukaitis K.J.,Pederson N.,&Donnelly J.P..(2020).Multivariate Climate Field Reconstructions Using Tree Rings for the Northeastern United States.Journal of Geophysical Research: Atmospheres,125(1).
MLA	Pearl J.K.,et al."Multivariate Climate Field Reconstructions Using Tree Rings for the Northeastern United States".Journal of Geophysical Research: Atmospheres 125.1(2020).