Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Pengzhen Duan"'
Autor:
Lijuan Sha, Lijun Tian, Lifen Sha, Yunxia Li, Xuejie Wang, Peng Hu, Qisheng Liang, Baoyun Zong, Pengzhen Duan, Hai Cheng
Publikováno v:
Communications Earth & Environment, Vol 5, Iss 1, Pp 1-11 (2024)
Abstract The isotopic composition has long been used to investigate the factors influencing precipitation, whereas the variations of event-based precipitation isotopes caused by moisture transition and synoptic meteorological conditions remain limite
Externí odkaz:
https://doaj.org/article/0e2b25ad6f5e4413916c56a5d67f1116
Autor:
Lijuan Sha, Jasper A. Wassenburg, Lifen Sha, Youwei Li, Shilun Zhou, Qisheng Liang, Jingyao Zhao, Jiaoyang Ruan, Hanying Li, Xinnan Zhao, Pengzhen Duan, Jian Wang, Jiayu Lu, Haiwei Zhang, Gayatri Kathayat, Sasadhar Mahata, Fengmei Ban, Ting-Yong Li, Hai Cheng
Publikováno v:
Communications Earth & Environment, Vol 4, Iss 1, Pp 1-10 (2023)
Abstract Characterization of moisture origins is crucial to understanding hydroclimatic processes. Nevertheless, documenting past atmospheric moisture contents and their sources remains challenging partially due to insufficient moisture-tracing proxi
Externí odkaz:
https://doaj.org/article/601fdd34945d4fe3bf8f9c2c29bb0218
Autor:
Pengzhen Duan, Hanying Li, Gayatri Kathayat, Haiwei Zhang, Youfeng Ning, Guangyou Zhu, Hai Cheng
Publikováno v:
Minerals, Vol 14, Iss 4, p 348 (2024)
As prominent abrupt climatic events during the last deglaciation and the early Holocene, the Younger Dryas (YD) and the 8.2 ka events have been intensely discussed to reveal the relationship between their phases and intensities, and their underlying
Externí odkaz:
https://doaj.org/article/8d6c8e1f09b543bd9f6efd67e64bfaf3
Autor:
Pengzhen Duan, Hanying Li, Zhibang Ma, Jingyao Zhao, Xiyu Dong, Ashish Sinha, Peng Hu, Haiwei Zhang, Yanjun Cai, Youfeng Ning, R. Lawrence Edwards, Hai Cheng
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 1, Pp n/a-n/a (2023)
Abstract The 8.2 ka event has been extensively studied, whereas its structure is ambiguous in North China. Here we present a high‐resolution (∼1 year) δ18O record from annual laminated speleothem from Beijing to characterize the detailed variabi
Externí odkaz:
https://doaj.org/article/70c07b8aebc542a18643187dc027b9f9
Autor:
Pengzhen Duan, Hanying Li, Zhibang Ma, Jingyao Zhao, Xiyu Dong, Sinha, Ashish, Peng Hu, Haiwei Zhang, Youfeng Ning, Guangyou Zhu, Hai Cheng
Publikováno v:
Climate of the Past Discussions; 11/21/2023, p1-24, 24p
Publikováno v:
Chinese Science Bulletin. 66:4691-4699
Autor:
Baoyun Zong, Hai Cheng, Jian Wang, Pu Zhang, Sasadhar Mahata, Youfeng Ning, Pengzhen Duan, Lijuan Sha, Yanjun Cai
Publikováno v:
Isotopes in Environmental and Health Studies. 57:443-456
The objective of this work is to propose a more effective way to prepare an in-house CO2 with known triple oxygen isotope compositions. The major experimental steps include: (1) the O2 is combusted to CO2 on a graphite rod at 750 °C with Pt-catalyst
Autor:
Pengzhen Duan, hanying li, Zhibang Ma, Jingyao Zhao, Ashish Sinha, Peng Hu, Haiwei Zhang, Yanjun Cai, Youfeng Ning, R. Lawrence Edwards, Hai Cheng
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88a045477826c3ae57981154654e4088
https://doi.org/10.1002/essoar.10512367.1
https://doi.org/10.1002/essoar.10512367.1
Measurement of oxygen and hydrogen isotopic ratios of speleothem fluid inclusion water using Picarro
Autor:
Ye Tian, Hai Cheng, Youfeng Ning, Haiwei Zhang, Pengzhen Duan, Baoyun Zong, Christoph Spötl, Yuri Dublyansky, Yanjun Cai, Hubert B. Vonhof
Publikováno v:
Chinese Science Bulletin. 65:3626-3634
A speleothem fluid inclusion extraction and isotope analysis system was established based on a vacuum extraction device and a Picarro L2140-i wavelength scanned cavity ring-down spectroscopy (WS-CRDS) water isotope analyzer. WS-CRDS allows to measure
Autor:
Youfeng Ning, Haiwei Zhang, Baoyun Zong, Pengzhen Duan, Jonathan Baker, Sasadhar Mahata, R. Lawrence Edwards, Pu Zhang, Lijuan Sha, Boaz Luz, Hai Cheng, Yassine Ait Brahim
Publikováno v:
Geochimica et Cosmochimica Acta. 270:360-378
Triple oxygen isotope compositions have become one of critical proxies in characterizing a wide range of geochemical and hydroclimate processes. However, Δ17O (carbonate 17O anomaly) has only been barely used in the last decade because it is difficu