Proxy Response Heterogeneity to the Indian Monsoon During Last Millennium in the Himalayan Region

We reviewed the available climate records for the past 2 millennia based on the analyzed sediment and speleothem archives from different regions of South Asia. Speleothem records from the core-monsoon regions of the Indian sub-continent have revealed the Little Ice Age (LIA) as a climatically dry ph...

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Main Authors: Ipsita Roy, Nidhi Tomar, Parminder Singh Ranhotra, Jaishri Sanwal
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-06-01
Series:Frontiers in Ecology and Evolution
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fevo.2022.778825/full
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author Ipsita Roy
Nidhi Tomar
Nidhi Tomar
Parminder Singh Ranhotra
Parminder Singh Ranhotra
Jaishri Sanwal
author_facet Ipsita Roy
Nidhi Tomar
Nidhi Tomar
Parminder Singh Ranhotra
Parminder Singh Ranhotra
Jaishri Sanwal
author_sort Ipsita Roy
collection DOAJ
description We reviewed the available climate records for the past 2 millennia based on the analyzed sediment and speleothem archives from different regions of South Asia. Speleothem records from the core-monsoon regions of the Indian sub-continent have revealed the Little Ice Age (LIA) as a climatically dry phase, whereas the same from the western and central Himalaya recorded LIA as wet. Moreover, the sediment-derived vegetation proxy records [pollen-spores and stable organic carbon isotope (δ13Corg)] from the western Himalaya also reported LIA as a dry phase. Heterogeneous results by different proxies during LIA enhanced our interest to understand the response of the proxies toward the primary precipitation sources, Indian summer monsoon (ISM) and winter westerly disturbances (WDs), over the Himalaya. We emphasize that in the Himalayan region, the vegetation predominantly responds to the ISM dynamics, whereas speleothem also captures the WD effect.
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spelling doaj.art-9b0676105c154081921a405ba7fbbdc12022-12-22T00:35:53ZengFrontiers Media S.A.Frontiers in Ecology and Evolution2296-701X2022-06-011010.3389/fevo.2022.778825778825Proxy Response Heterogeneity to the Indian Monsoon During Last Millennium in the Himalayan RegionIpsita Roy0Nidhi Tomar1Nidhi Tomar2Parminder Singh Ranhotra3Parminder Singh Ranhotra4Jaishri Sanwal5Quaternary Division, Birbal Sahni Institute of Palaeosciences, Lucknow, IndiaQuaternary Division, Birbal Sahni Institute of Palaeosciences, Lucknow, IndiaAcademy of Scientific and Innovative Research (AcSIR), Ghaziabad, IndiaQuaternary Division, Birbal Sahni Institute of Palaeosciences, Lucknow, IndiaAcademy of Scientific and Innovative Research (AcSIR), Ghaziabad, IndiaGeodynamics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bengaluru, IndiaWe reviewed the available climate records for the past 2 millennia based on the analyzed sediment and speleothem archives from different regions of South Asia. Speleothem records from the core-monsoon regions of the Indian sub-continent have revealed the Little Ice Age (LIA) as a climatically dry phase, whereas the same from the western and central Himalaya recorded LIA as wet. Moreover, the sediment-derived vegetation proxy records [pollen-spores and stable organic carbon isotope (δ13Corg)] from the western Himalaya also reported LIA as a dry phase. Heterogeneous results by different proxies during LIA enhanced our interest to understand the response of the proxies toward the primary precipitation sources, Indian summer monsoon (ISM) and winter westerly disturbances (WDs), over the Himalaya. We emphasize that in the Himalayan region, the vegetation predominantly responds to the ISM dynamics, whereas speleothem also captures the WD effect.https://www.frontiersin.org/articles/10.3389/fevo.2022.778825/fullpalynologystable carbon isotopespeleothemoxygen isotopelate Holocene
spellingShingle Ipsita Roy
Nidhi Tomar
Nidhi Tomar
Parminder Singh Ranhotra
Parminder Singh Ranhotra
Jaishri Sanwal
Proxy Response Heterogeneity to the Indian Monsoon During Last Millennium in the Himalayan Region
Frontiers in Ecology and Evolution
palynology
stable carbon isotope
speleothem
oxygen isotope
late Holocene
title Proxy Response Heterogeneity to the Indian Monsoon During Last Millennium in the Himalayan Region
title_full Proxy Response Heterogeneity to the Indian Monsoon During Last Millennium in the Himalayan Region
title_fullStr Proxy Response Heterogeneity to the Indian Monsoon During Last Millennium in the Himalayan Region
title_full_unstemmed Proxy Response Heterogeneity to the Indian Monsoon During Last Millennium in the Himalayan Region
title_short Proxy Response Heterogeneity to the Indian Monsoon During Last Millennium in the Himalayan Region
title_sort proxy response heterogeneity to the indian monsoon during last millennium in the himalayan region
topic palynology
stable carbon isotope
speleothem
oxygen isotope
late Holocene
url https://www.frontiersin.org/articles/10.3389/fevo.2022.778825/full
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