中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地理科学与资源研究所
  3. 中国科学院地理科学与资源研究所
Evaluation of multidecadal and longer-term temperature changes since 850 CE based on Northern Hemisphere proxy-based reconstructions and model simulations

文献类型：期刊论文

作者Wang, Jianglin6; Yang, Bao6,7; Zheng, Jingyun1; Zhang, Xuezhen1; Wang, Zhiyuan2; Fang, Miao3; Shi, Feng4,5; Liu, Jingjing6
刊名SCIENCE CHINA-EARTH SCIENCES
出版日期2020-05-14
页码18
关键词Temperature changes Multidecadal and longer-term variability Northern Hemisphere Last millennium
ISSN号1674-7313
DOI10.1007/s11430-019-9607-x
通讯作者Yang, Bao(yangbao@lzb.ac.cn)
英文摘要The temperature variability over multidecadal and longer timescales (e.g., the cold epochs in the late 15th, 17th, and early 19th centuries) is significant and dominant in the millennium-long, large-scale reconstructions and model simulations; however, their temporal patterns in the reconstructed and simulated temperature series are not well understood and require a detailed assessment and comparison. Here, we compare the reconstructed and simulated temperature series for the Northern Hemisphere (NH) at multidecadal and longer-term timescales (>30 years) by evaluating their covariance, climate sensitivity and amplitude of temperature changes. We found that covariances between different reconstructions or between reconstructions and simulations are generally high for the whole period of 850-1999 CE, due to their similar long-term temporal patterns. However, covariances between different reconstructions or between reconstructions and simulations steadily decline as time series extends further back in time, becoming particularly small during Medieval times. This is related to the large uncetainties in the reconstructions caused by the decreased number of proxy records and sample duplication during the pre-instrumental periods. Reconstructions based solely on tree-ring data show higher skill than multiproxy reconstructions in capturing the amplitude of volcanic cooling simulated by models. Meanwhile, climate models have a shorter recovery (i.e., lag) in response to the cooling caused by volcanic eruptions and solar activity minima, implying the lack of some important feedback mechanisms between external forcing and internal climate processes in climate models. Amplitudes of temperature variations in the latest published tree-ring reconstructions are comparable to those of the multiproxy reconstructions. We found that the temperature difference between the Medieval Climate Anomaly (950-1250 CE) and the Little Ice Age (1450-1850 CE) is generally larger in proxy-based reconstructions than in model simulations, but the reason is unclear.
WOS关键词PAST 2000 YEARS ; LAST MILLENNIUM ; SURFACE-TEMPERATURE ; CLIMATE VARIABILITY ; TIBETAN PLATEAU ; LARGE-SCALE ; ICE-AGE ; ATLANTIC CLIMATE ; MEAN TEMPERATURE ; EASTERN CHINA
资助项目National Key R&D Program of China[2017YFA0603302] ; National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[41602192] ; National Natural Science Foundation of China[41977383] ; Belmont Forum ; JPI-Climate, Collaborative Research Action INTEGRATE[41661144008] ; Youth Innovation Promotion Association Foundation of the Chinese Academy of Sciences[2018471] ; National Natural Science Foundation[41901095] ; National Natural Science Foundation[41877440] ; Opening Fund of Key Laboratory of Desert and Desertification, Chinese Academy of Sciences[KLDD-2019-04]
WOS研究方向Geology
语种英语
WOS记录号WOS:000533046800001
出版者SCIENCE PRESS
资助机构National Key R&D Program of China ; National Natural Science Foundation of China ; Belmont Forum ; JPI-Climate, Collaborative Research Action INTEGRATE ; Youth Innovation Promotion Association Foundation of the Chinese Academy of Sciences ; National Natural Science Foundation ; Opening Fund of Key Laboratory of Desert and Desertification, Chinese Academy of Sciences
源URL[http://ir.igsnrr.ac.cn/handle/311030/159758]  
专题中国科学院地理科学与资源研究所
通讯作者Yang, Bao
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100049, Peoples R China
2.Zhejiang Normal Univ, Coll Geog & Environm Sci, Jinhua 321004, Zhejiang, Peoples R China
3.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resource, Lanzhou 730000, Peoples R China
4.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
6.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou 730000, Peoples R China
7.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Jianglin,Yang, Bao,Zheng, Jingyun,et al. Evaluation of multidecadal and longer-term temperature changes since 850 CE based on Northern Hemisphere proxy-based reconstructions and model simulations[J]. SCIENCE CHINA-EARTH SCIENCES,2020:18.
APA Wang, Jianglin.,Yang, Bao.,Zheng, Jingyun.,Zhang, Xuezhen.,Wang, Zhiyuan.,...&Liu, Jingjing.(2020).Evaluation of multidecadal and longer-term temperature changes since 850 CE based on Northern Hemisphere proxy-based reconstructions and model simulations.SCIENCE CHINA-EARTH SCIENCES,18.
MLA Wang, Jianglin,et al."Evaluation of multidecadal and longer-term temperature changes since 850 CE based on Northern Hemisphere proxy-based reconstructions and model simulations".SCIENCE CHINA-EARTH SCIENCES (2020):18.

入库方式： OAI收割

来源：地理科学与资源研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。