气候变化领域集成服务门户(CCPortal): Moisture and Temperature Covariability over the Southeastern Tibetan Plateau during the Past Nine Centuries

CCPortal

DOI	10.1175/JCLI-D-19-0363.1
	Moisture and Temperature Covariability over the Southeastern Tibetan Plateau during the Past Nine Centuries
	Wang J.; Yang B.; Ljungqvist F.C.
发表日期	2020
ISSN	0894-8755
起始页码	6583
结束页码	6598
卷号	33 期号:15
英文摘要	Accurate projections of moisture variability across the Tibetan Plateau (TP) are crucial for managing regional water resources, ecosystems, and agriculture in densely populated downstream regions. Our understanding of how moisture conditions respond to increasing temperatures over the TP is still limited, due to the short length of instrumental data and the limited spatial coverage of high-resolution paleoclimate proxy records in this region. This study presents a new, early-summer (May-June) self-calibrating Palmer drought severity index (scPDSI) reconstruction for the southeastern TP (SETP) covering 1135-2010 CE using 14 treering records based on 1669 individual width sample series. The new reconstruction reveals that the SETP experienced the longest period of pluvial conditions in 1154-75 CE, and the longest droughts during the periods 1262-80 and 1958-76 CE. The scPDSI reconstruction shows stable and significant in-phase relationships with temperature at both high and low frequencies throughout the past 900 years. This supports the hypothesis that climatic warming may increase moisture by enhancing moisture recycling and convective precipitation over the SETP; it is also consistent with climate model projections of wetter conditions by the late twenty-first century in response to global warming. © 2020 American Meteorological Society. All rights reserved.
英文关键词	Agricultural robots; Climate models; Drought; Global warming; Water resources; Convective precipitation; Increasing temperatures; Instrumental data; Moisture conditions; Moisture variability; Paleoclimate proxy; Regional water resources; Self-calibrating Palmer drought severity indices; Moisture; air temperature; atmospheric moisture; climate modeling; drought; Holocene; paleoclimate; proxy climate record; tree ring; warming; China; Qinghai-Xizang Plateau
语种	英语
来源期刊	Journal of Climate
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/171199
作者单位	Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China; Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China; Cas Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, Beijing, China; Bolin Centre for Climate Research, Department of History, StockholmUniversity, Stockholm, Sweden; Swedish Collegium for Advanced Study, Uppsala, Sweden
推荐引用方式 GB/T 7714	Wang J.,Yang B.,Ljungqvist F.C.. Moisture and Temperature Covariability over the Southeastern Tibetan Plateau during the Past Nine Centuries[J]. 中国科学院西北生态环境资源研究院,2020,33(15).
APA	Wang J.,Yang B.,&Ljungqvist F.C..(2020).Moisture and Temperature Covariability over the Southeastern Tibetan Plateau during the Past Nine Centuries.Journal of Climate,33(15).
MLA	Wang J.,et al."Moisture and Temperature Covariability over the Southeastern Tibetan Plateau during the Past Nine Centuries".Journal of Climate 33.15(2020).