Hydroclimate patterns over the Northern Hemisphere when megadroughts occurred in North China during the last millennium
文献类型：期刊论文
| 作者 | Bai, Mengxin1,2; Zheng, Jingyun1,2; Hao, Zhixin1,2; Zhang, Xuezhen1,2; Zeng, Gang3 |
| 刊名 | CLIMATIC CHANGE
 |
| 出版日期 | 2019-12-01 |
| 卷号 | 157期号:3-4页码:365-385 |
| ISSN号 | 0165-0009 |
| DOI | 10.1007/s10584-019-02580-w |
| 通讯作者 | Zhang, Xuezhen(xzzhang@igsnrr.ac.cn) |
| 英文摘要 | Using multiple proxy data of historical hydroclimate variations, this study first selects the five heaviest megadrought decades in North China during the last millennium and then depicts the spatial pattern of hydroclimate over the Northern Hemisphere through these five megadrought decades. The results shows that abnormally dry conditions existed in East Asia, North America, and Europe when megadroughts in North China during the last millennium. The intensity of dry conditions in North America was stronger than that in Europe. Then, through comparing the spatial patterns of hydroclimate from proxy data with ensemble modeling of nine CMIP5/PMIP3 models, we find that such megadroughts in North China, and the contemporaneously abnormal dry conditions over the Northern Hemisphere were very likely mainly induced by external forcing, i.e., large volcanic eruptions and weakened solar irradiation. These external forcing may lead to climate cooling and, hence, air motion downward at mid-lower layer of troposphere, inducing a much more stable troposphere; as well as, the land-ocean pressure differences were weakened, and, hence, there would be decreased water vapor flux from ocean to land. Both of intensified stability of troposphere and weakened vapor transportations to land would lead to precipitation decline and, as a result, would be favorable for drought. It is therefore necessary to consider these external forcing into future climate change predicting to improve our ability of predicting megadrought. |
| WOS关键词 | VOLCANIC-ERUPTIONS ; CLIMATE-CHANGE ; RECONSTRUCTION ; PRECIPITATION ; VARIABILITY ; DROUGHT |
| 资助项目 | National Key Research and Development Program of China[2017YFA0603301] ; National Natural Science Foundation of China[41790424] ; National Natural Science Foundation of China[41430528] ; Key Research Program of Frontier Sciences from CAS[QYZDB-SSW-DQC005] ; Key Research Program of Frontier Sciences from CAS[ZDRW-ZS-2017-4] ; Key Laboratory of Meteorological Disaster of Ministry of Education, Nanjing University of Information Science and Technology[KLME1506] |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000505169800003 |
| 出版者 | SPRINGER |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences from CAS ; Key Laboratory of Meteorological Disaster of Ministry of Education, Nanjing University of Information Science and Technology |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/131136]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhang, Xuezhen |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Nanjing Univ Informat Sci & Technol, Minist Educ, Key Lab Meteorol Disaster, Nanjing 210044, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bai, Mengxin,Zheng, Jingyun,Hao, Zhixin,et al. Hydroclimate patterns over the Northern Hemisphere when megadroughts occurred in North China during the last millennium[J]. CLIMATIC CHANGE,2019,157(3-4):365-385. |
| APA | Bai, Mengxin,Zheng, Jingyun,Hao, Zhixin,Zhang, Xuezhen,&Zeng, Gang.(2019).Hydroclimate patterns over the Northern Hemisphere when megadroughts occurred in North China during the last millennium.CLIMATIC CHANGE,157(3-4),365-385. |
| MLA | Bai, Mengxin,et al."Hydroclimate patterns over the Northern Hemisphere when megadroughts occurred in North China during the last millennium".CLIMATIC CHANGE 157.3-4(2019):365-385. |
入库方式： OAI收割
来源：地理科学与资源研究所
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