Abrupt Indian summer monsoon shifts aligned with Heinrich events and D-O cycles since MIS 3
The tropics experienced a unique monsoon climate that drove important changes in socio-economic conditions and shaped different phases of human history during the late Quaternary across the Indian subcontinent. This study presents a new high-resolution speleothem-record of Indian summer monsoon (ISM...
Published in: | Palaeogeography, Palaeoclimatology, Palaeoecology |
---|---|
Main Authors: | , , , , , |
Format: | Report |
Language: | English |
Published: |
ELSEVIER
2021
|
Subjects: | |
Online Access: | http://ir.ieecas.cn/handle/361006/17060 https://doi.org/10.1016/j.palaeo.2021.110658 |
id |
ftchinacascieeca:oai:ir.ieecas.cn:361006/17060 |
---|---|
record_format |
openpolar |
spelling |
ftchinacascieeca:oai:ir.ieecas.cn:361006/17060 2023-06-11T04:12:18+02:00 Abrupt Indian summer monsoon shifts aligned with Heinrich events and D-O cycles since MIS 3 Jaglan, Sonu Gupta, Anil K. Clemens, Steven C. Dutt, Som Cheng, Hai Singh, Raj K. 2021-12-01 http://ir.ieecas.cn/handle/361006/17060 https://doi.org/10.1016/j.palaeo.2021.110658 英语 eng ELSEVIER PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY http://ir.ieecas.cn/handle/361006/17060 doi:10.1016/j.palaeo.2021.110658 Indian summer monsoon Henrich events Dansgaard-Oeschger cycles Solar insolation Precession harmonics Inter tropical convergence zone NORTH-ATLANTIC CLIMATE ASIAN MONSOON NORTHEASTERN INDIA MOISTURE TRANSPORT MEGHALAYA PLATEAU ARABIAN SEA STALAGMITE RAINFALL VARIABILITY INSOLATION Physical Geography Geology Paleontology Geography Physical Geosciences Multidisciplinary 期刊论文 2021 ftchinacascieeca https://doi.org/10.1016/j.palaeo.2021.110658 2023-05-08T13:25:26Z The tropics experienced a unique monsoon climate that drove important changes in socio-economic conditions and shaped different phases of human history during the late Quaternary across the Indian subcontinent. This study presents a new high-resolution speleothem-record of Indian summer monsoon (ISM) variability ranging from similar to 45,000 to 34,000 yr BP combined with a published record up to 5500 yr BP from the Mawmluh cave, northeastern India. We document significant changes in solar insolation and precession harmonics, implicating solar activity as one of the major forcing factors for rapid monsoonal shifts. Our new delta O-18 time series shows high-amplitude shifts in the ISM during the marine isotope stage 3 (MIS 3), similar to Dansgaard-Oeschger (D-O) oscillations recorded at high northern latitudes, which mimic the Greenland ice sheet record. The sun driven Northern Hemisphere high latitude climate anomalies played an active role in driving ISM variability and changes in the regional hydrological cycle on centennial to millennial time scales across the Indian subcontinent. Report Greenland Ice Sheet North Atlantic Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences) Greenland Indian Palaeogeography, Palaeoclimatology, Palaeoecology 583 110658 |
institution |
Open Polar |
collection |
Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacascieeca |
language |
English |
topic |
Indian summer monsoon Henrich events Dansgaard-Oeschger cycles Solar insolation Precession harmonics Inter tropical convergence zone NORTH-ATLANTIC CLIMATE ASIAN MONSOON NORTHEASTERN INDIA MOISTURE TRANSPORT MEGHALAYA PLATEAU ARABIAN SEA STALAGMITE RAINFALL VARIABILITY INSOLATION Physical Geography Geology Paleontology Geography Physical Geosciences Multidisciplinary |
spellingShingle |
Indian summer monsoon Henrich events Dansgaard-Oeschger cycles Solar insolation Precession harmonics Inter tropical convergence zone NORTH-ATLANTIC CLIMATE ASIAN MONSOON NORTHEASTERN INDIA MOISTURE TRANSPORT MEGHALAYA PLATEAU ARABIAN SEA STALAGMITE RAINFALL VARIABILITY INSOLATION Physical Geography Geology Paleontology Geography Physical Geosciences Multidisciplinary Jaglan, Sonu Gupta, Anil K. Clemens, Steven C. Dutt, Som Cheng, Hai Singh, Raj K. Abrupt Indian summer monsoon shifts aligned with Heinrich events and D-O cycles since MIS 3 |
topic_facet |
Indian summer monsoon Henrich events Dansgaard-Oeschger cycles Solar insolation Precession harmonics Inter tropical convergence zone NORTH-ATLANTIC CLIMATE ASIAN MONSOON NORTHEASTERN INDIA MOISTURE TRANSPORT MEGHALAYA PLATEAU ARABIAN SEA STALAGMITE RAINFALL VARIABILITY INSOLATION Physical Geography Geology Paleontology Geography Physical Geosciences Multidisciplinary |
description |
The tropics experienced a unique monsoon climate that drove important changes in socio-economic conditions and shaped different phases of human history during the late Quaternary across the Indian subcontinent. This study presents a new high-resolution speleothem-record of Indian summer monsoon (ISM) variability ranging from similar to 45,000 to 34,000 yr BP combined with a published record up to 5500 yr BP from the Mawmluh cave, northeastern India. We document significant changes in solar insolation and precession harmonics, implicating solar activity as one of the major forcing factors for rapid monsoonal shifts. Our new delta O-18 time series shows high-amplitude shifts in the ISM during the marine isotope stage 3 (MIS 3), similar to Dansgaard-Oeschger (D-O) oscillations recorded at high northern latitudes, which mimic the Greenland ice sheet record. The sun driven Northern Hemisphere high latitude climate anomalies played an active role in driving ISM variability and changes in the regional hydrological cycle on centennial to millennial time scales across the Indian subcontinent. |
format |
Report |
author |
Jaglan, Sonu Gupta, Anil K. Clemens, Steven C. Dutt, Som Cheng, Hai Singh, Raj K. |
author_facet |
Jaglan, Sonu Gupta, Anil K. Clemens, Steven C. Dutt, Som Cheng, Hai Singh, Raj K. |
author_sort |
Jaglan, Sonu |
title |
Abrupt Indian summer monsoon shifts aligned with Heinrich events and D-O cycles since MIS 3 |
title_short |
Abrupt Indian summer monsoon shifts aligned with Heinrich events and D-O cycles since MIS 3 |
title_full |
Abrupt Indian summer monsoon shifts aligned with Heinrich events and D-O cycles since MIS 3 |
title_fullStr |
Abrupt Indian summer monsoon shifts aligned with Heinrich events and D-O cycles since MIS 3 |
title_full_unstemmed |
Abrupt Indian summer monsoon shifts aligned with Heinrich events and D-O cycles since MIS 3 |
title_sort |
abrupt indian summer monsoon shifts aligned with heinrich events and d-o cycles since mis 3 |
publisher |
ELSEVIER |
publishDate |
2021 |
url |
http://ir.ieecas.cn/handle/361006/17060 https://doi.org/10.1016/j.palaeo.2021.110658 |
geographic |
Greenland Indian |
geographic_facet |
Greenland Indian |
genre |
Greenland Ice Sheet North Atlantic |
genre_facet |
Greenland Ice Sheet North Atlantic |
op_relation |
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY http://ir.ieecas.cn/handle/361006/17060 doi:10.1016/j.palaeo.2021.110658 |
op_doi |
https://doi.org/10.1016/j.palaeo.2021.110658 |
container_title |
Palaeogeography, Palaeoclimatology, Palaeoecology |
container_volume |
583 |
container_start_page |
110658 |
_version_ |
1768388041855991808 |