Bittoo Cave, India oxygen and carbon isotope record dataset (over the past 280,000 years)
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DOI
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Key words
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Bittoo Cave, oxygen and carbon isotope
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Related data
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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 (δ18O) 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 δ18O 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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Data description
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a. Description of Intellectual Property Rights
When using a dataset, please refer to the following documents in the article：
Gayatri Kathayat, Hai Cheng, Ashish Sinha, Christoph Sp?tl, R. Lawrence Edwards, Haiwei Zhang, Xianglei Li, Liang Yi, Youfeng Ning, Yanjun Cai, Weiguo Lui Lui and Sebastian F.M. Breitenbach. 2016. Indian monsoon variability on millennial-orbital timescales. Scientific Reports, Vol. 6. DOI: 10.1038/srep24374
b. The data labels refer to the following specifications： Data sources refer to the following specifications： Chinese Expression： 数据来源于国家科技资源共享服务平台-国家地球系统科学数据中心(http://www.geodata.cn)-东亚古环境科学数据库(http://paleodata.ieecas.cn/index.aspx)； English Expression： East Asian Paleoenvironmental Science Database (http://paleodata.ieecas.cn/index.aspx)，National Earth System Science Data Center, National Science & Technology Infrastructure of China (http://www.geodata.cn). Acknowledgments refer to the following specifications: Acknowledgments in Chinese： 感谢国家科技资源共享服务平台-国家地球系统科学数据中心(http://www.geodata.cn)-东亚古环境科学数据库(http://paleodata.ieecas.cn/index.aspx)提供数据支撑。 Acknowledgments in English： Acknowledgement for the data support from “East Asian Paleoenvironmental Science Database (http://paleodata.ieecas.cn/index.aspx)，National Earth System Science Data Center, National Science & Technology Infrastructure of China. (http://www.geodata.cn)”. c. Contacts Name: Hai Cheng et al. & Data processing group Company: Institute of Earth Environment, Chinese Academy of Sciences Tel: 029-62336213 Email: eapsd@ieecas.cn
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Dataset format
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EXCEL
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Data type
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Ecology and environment/Ecology and environment/Ecology and environment
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Data sources
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NOAA
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Enclosure
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[download]
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Related pictures
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 Contact card |
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Name：Dr. Hongli Zhao |
E-mail：zhaohl@ieecas.cn |
| Company：IEECAS |
Telephone：029-62336213 |