| one publication added to basket [255168] | Indian monsoon variability on millennial-orbital timescales
Kathayat, G.; Cheng, H.; Sinha, A.; Spötl, C.; Edwards, R.L.; Zhang, H.; Li, X.; Yi, L.; Ning, Y.; Cai, Y.; Lui, W.L.; Breitenbach, S.F.M. (2016). Indian monsoon variability on millennial-orbital timescales. NPG Scientific Reports 6(24374): 7 pp. http://dx.doi.org/10.1038/srep24374
In: Scientific Reports (Nature Publishing Group). Nature Publishing Group: London. ISSN 2045-2322; e-ISSN 2045-2322, more
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| Authors | | Top |
- Kathayat, G.
- Cheng, H.
- Sinha, A.
- Spötl, C.
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- Edwards, R.L.
- Zhang, H.
- Li, X.
- Yi, L.
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- Ning, Y.
- Cai, Y.
- Lui, W.L.
- Breitenbach, S.F.M.
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| Abstract |
The Indian summer monsoon (ISM) monsoon is critical to billions of people living in the region. Yet, significant debates remain on primary ISM drivers on millennial-orbital timescales. Here, we use speleothem oxygen isotope (delta O-18) data from Bittoo cave, Northern India to reconstruct ISM variability over the past 280,000 years. We find strong coherence between North Indian and Chinese speleothem delta O-18 records from the East Asian monsoon domain, suggesting that both Asian monsoon subsystems exhibit a coupled response to changes in Northern Hemisphere summer insolation (NHSI) without significant temporal lags, supporting the view that the tropical-subtropical monsoon variability is driven directly by precession-induced changes in NHSI. Comparisons of the North Indian record with both Antarctic ice core and sea-surface temperature records from the southern Indian Ocean over the last glacial period do not suggest a dominant role of Southern Hemisphere climate processes in regulating the ISM variability on millennial-orbital timescales. |
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