DOI: 10.1016/j.quascirev.2014.10.012
Scopus记录号: 2-s2.0-84909647333
论文题名: Hydroclimatic changes in China and surroundings during the Medieval Climate Anomaly and Little Ice Age: Spatial patterns and possible mechanisms
作者: Chen J. ; Chen F. ; Feng S. ; Huang W. ; Liu J. ; Zhou A.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2015
卷: 107 起始页码: 98
结束页码: 111
语种: 英语
英文关键词: Arid central Asia
; Little Ice Age
; Mechanisms
; Medieval Climate Anomaly
; Monsoonal China
; Spatial pattern
Scopus关键词: Atmospheric pressure
; Climatology
; Driers (materials)
; Glacial geology
; Greenhouse gases
; Mechanisms
; Moisture
; Nickel
; Central Asia
; Little Ice Age
; Medieval climate anomalies
; Monsoonal China
; Spatial patterns
; Ice
; climate variation
; Little Ice Age
; Medieval Warm Period
; moisture content
; paleoclimate
; proxy climate record
; spatial analysis
; China
英文摘要: Investigating hydroclimatic changes during key periods such as the Medieval Climate Anomaly (MCA, 1000-1300AD) and the Little Ice Age (LIA, 1400-1900AD) is of fundamental importance for quantifying the responses of precipitation to greenhouse gas-induced warming on regional and global scales. This study synthesizes the most up-to-date and comprehensive proxy moisture/precipitation records during the past 1000 years in China and surroundings. The proxy data collected include 34 records from arid central Asia (ACA) and 37 records from monsoonal Asia. Our results demonstrate a pattern of generally coherent regional moisture variations during the MCA and LIA. In mid-latitude Asia north of 30°N, monsoonal northern China (North China and Northeast China) was generally wetter, while ACA (Northwest China and Central Asia) was generally drier during the MCA than in the LIA (a West-East mode). The boundary between wetter northern China and drier ACA was roughly consistent with the modern summer monsoon boundary. In monsoonal China to the east of 105°E, the northern part was generally wetter, while the southern part was generally drier during the MCA than in the LIA (a North-South mode), with a boundary roughly along the Huai River at about 34°N. These spatial patterns of moisture/precipitation variations are also identified by instrumental data during the past 50 years.In order to understand the possible mechanisms related to the moisture variations during the MCA and LIA, we investigate the major SST and atmospheric modes (e.g. the El Niño/Southern Oscillation (ENSO), the Atlantic Multidecadal Oscillation (AMO) and the North Atlantic Oscillation (NAO)) which affect the moisture/precipitation variations in the study region using both the instrumental data and the reconstructed time series. It is found that the ENSO may play an important role in determining hydroclimatic variability over China and surroundings on a multi-centennial time-scale and that the foregoing spatial patterns could be attributed to the La Niña-like (El Niño-like) condition during the MCA (LIA). In addition, AMO and NAO may also have their own contributions. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60064
Appears in Collections: 过去全球变化的重建
There are no files associated with this item.
作者单位: MOE Key Laboratory of Western China's Environmental System, Research School of Arid Environment and Climate Change, Lanzhou University, Lanzhou, China; Department of Geosciences, University of Arkansas, Fayetteville, AR, United States
Recommended Citation:
Chen J.,Chen F.,Feng S.,et al. Hydroclimatic changes in China and surroundings during the Medieval Climate Anomaly and Little Ice Age: Spatial patterns and possible mechanisms[J]. Quaternary Science Reviews,2015-01-01,107