Indian summer monsoon variability in northeastern India during the last two millennia

doi:10.1016/j.quaint.2020.10.021

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（2010~）

	Indian summer monsoon variability in northeastern India during the last two millennia
	Dutt, Som 1; Gupta, Anil K.2; Cheng, Hai 3,4,5; Clemens, Steven C.6; Singh, Raj K.7; Tewari, Vinod C.8
通讯作者	Dutt, Som(somduttmudgil1@gmail.com)
	2021-01-10
发表期刊	QUATERNARY INTERNATIONAL
ISSN	1040-6182
卷号	571 页码:73-80
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.
关键词	MCA LIA Last millennium Late holocene Indian subcontinent Speleothems
DOI	10.1016/j.quaint.2020.10.021
关键词[WOS]	ASIAN SOUTHWEST MONSOON ; NORTHERN-HEMISPHERE ; TEMPERATURE VARIABILITY ; SPELEOTHEM RECORD ; STALAGMITE ; RESOLUTION ; RAINFALL ; HOLOCENE ; RECONSTRUCTION ; PRECIPITATION
收录类别	SCI ; SCI
语种	英语
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
项目资助者	Department of Science and Technology, New Delhi ; IIT Bhubaneswar ; MoES, Govt. of India ; NSFC
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000612111700003
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/15962
专题	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.Wadia Inst Himalayan Geol, 33 Gen Mahadeo Singh Rd, Dehra Dun 248001, Uttarakhand, India 2.Indian Inst Technol Kharagpur, Dept Geol & Geophys, Kharagpur 721302, W Bengal, India 3.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710054, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 5.CAGS, Key Lab Karst Dynam, Inst Karst Geol, MLR, Guilin 541004, Peoples R China 6.Brown Univ, Dept Earth Environm & Planetary Sci, 324 Brook St,POB 1846, Providence, RI 02912 USA 7.Indian Inst Technol Bhubaneswar, Sch Earth Ocean & Climate Sci, Bhubaneswar 751007, India 8.Sikkim Univ, Dept Geol, Gangtok 737102, 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.