Indian summer monsoon variability in northeastern India during the last two millennia
文献类型：期刊论文
| 作者 | Dutt, Som2; Gupta, Anil K.3; Cheng, Hai4,5,6; Clemens, Steven C.7; Singh, Raj K.8; Tewari, Vinod C.1 |
| 刊名 | QUATERNARY INTERNATIONAL
 |
| 出版日期 | 2021-01-10 |
| 卷号 | 571页码:73-80 |
| 关键词 | MCA LIA Last millennium Late holocene Indian subcontinent Speleothems |
| ISSN号 | 1040-6182 |
| DOI | 10.1016/j.quaint.2020.10.021 |
| 通讯作者 | Dutt, Som(somduttmudgil1@gmail.com) |
| 英文摘要 | High-resolution proxy records help to understand natural forcing of climate variability and improving our capability to predict climate variability on decadal to centennial time scales. Present study from the Mawmluh cave, northeastern India shows sudden shifts in speleothem oxygen isotope values, indicating several abrupt changes in the Indian summer monsoon (ISM) during-212 BCE to 1986 CE. Moderate ISM conditions prevailed during-212 BCE to 400 CE punctuated with weak intervals, strong ISM during 400 and 500 CE and from 640 to 1060 CE, whereas weak ISM conditions prevailed during 520-540 CE, 820-850 CE and 940-980 CE and after 1060 CE. The interval from 1060 to 1986 CE witnessed decreased precipitation than the previous millennium. The latter phase of the Medieval Climate Anomaly (MCA; 1060 to 1200 CE) was quite drier in contrast to the earlier intervals. The ISM was generally weak during the Little Ice Age (LIA; 1350 to 1850 CE) with short-term pulses of high precipitation when sun-spot activity was high. The data shows the weakest ISM condition during 1640-1740 CE (Maunder Minimum) of the last two millennia. Variations in extra-tropical northern hemisphere temperatures due to volcanic activity and solar insolation, and accompanying northward/southward shifting of the Inter-Tropical Convergence Zone played a pivotal role in modulating the strength of the ISM during the past two millennia. |
| WOS关键词 | ASIAN SOUTHWEST MONSOON ; NORTHERN-HEMISPHERE ; TEMPERATURE VARIABILITY ; SPELEOTHEM RECORD ; STALAGMITE ; RESOLUTION ; RAINFALL ; HOLOCENE ; RECONSTRUCTION ; PRECIPITATION |
| 资助项目 | Department of Science and Technology, New Delhi[SR/S2/JCB-80/2011] ; IIT Bhubaneswar[SP 053] ; MoES, Govt. of India[RP088] ; NSFC[41888101] |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000612111700003 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Department of Science and Technology, New Delhi ; IIT Bhubaneswar ; MoES, Govt. of India ; NSFC |
| 源URL | [http://ir.ieecas.cn/handle/361006/15961]  |
| 专题 | 地球环境研究所_黄土与第四纪地质国家重点实验室（2010~） |
| 通讯作者 | Dutt, Som |
| 作者单位 | 1.Sikkim Univ, Dept Geol, Gangtok 737102, India 2.Wadia Inst Himalayan Geol, 33 Gen Mahadeo Singh Rd, Dehra Dun 248001, Uttarakhand, India 3.Indian Inst Technol Kharagpur, Dept Geol & Geophys, Kharagpur 721302, W Bengal, India 4.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710054, Peoples R China 5.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 6.CAGS, Key Lab Karst Dynam, Inst Karst Geol, MLR, Guilin 541004, Peoples R China 7.Brown Univ, Dept Earth Environm & Planetary Sci, 324 Brook St,POB 1846, Providence, RI 02912 USA 8.Indian Inst Technol Bhubaneswar, Sch Earth Ocean & Climate Sci, Bhubaneswar 751007, India |
| 推荐引用方式 GB/T 7714 | Dutt, Som,Gupta, Anil K.,Cheng, Hai,et al. Indian summer monsoon variability in northeastern India during the last two millennia[J]. QUATERNARY INTERNATIONAL,2021,571:73-80. |
| APA | Dutt, Som,Gupta, Anil K.,Cheng, Hai,Clemens, Steven C.,Singh, Raj K.,&Tewari, Vinod C..(2021).Indian summer monsoon variability in northeastern India during the last two millennia.QUATERNARY INTERNATIONAL,571,73-80. |
| MLA | Dutt, Som,et al."Indian summer monsoon variability in northeastern India during the last two millennia".QUATERNARY INTERNATIONAL 571(2021):73-80. |
入库方式： OAI收割
来源：地球环境研究所
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