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Article

Isoscape of δ18O in Precipitation of the Qinghai-Tibet Plateau: Assessment and Improvement

1
College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China
2
Laboratory of Atmospheric Physics, Department of Physics, University of Patras, GR-265 00 Patras, Greece
3
Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
4
Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
*
Author to whom correspondence should be addressed.
Water 2020, 12(12), 3392; https://doi.org/10.3390/w12123392
Received: 6 November 2020 / Revised: 26 November 2020 / Accepted: 30 November 2020 / Published: 2 December 2020
(This article belongs to the Section Hydrology and Hydrogeology)
The spatial distribution of stable water isotopes (also known as an isoscape) in precipitation has drawn increasing attention during the recent years. In this study, based on the observations at 32 stations, we assessed two widely applied global isoscape products (Regionalized Cluster-based Water Isotope Prediction (RCWIP) and Online Isotopes in Precipitation Calculator (OIPC)) at the Qinghai-Tibet Plateau (QTP) and then established an improved isoscape of oxygen isotopes in precipitation on a monthly basis using a regionalized fuzzy cluster method. Two fuzzy clusters can be determined, which is consistent using three meteorological data. The monthly isoscapes show the seasonal movement of high and low isotopic value regions across the QTP and reveal the influences of monsoon and westerly moisture. According to the cross validation, the δ18O in precipitation in the new monthly isoscapes for the QTP we propose performs better compared to the existing global products. To create a regional isoscape in many other regions, the regionalized fuzzy cluster method can be considered especially for regions with complex controlling regimes of precipitation isotopes. View Full-Text
Keywords: precipitation; Qinghai-Tibet Plateau; δ18O, isoscape; fuzzy cluster precipitation; Qinghai-Tibet Plateau; δ18O, isoscape; fuzzy cluster
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MDPI and ACS Style

Shi, Y.; Wang, S.; Zhang, M.; Argiriou, A.A.; Guo, R.; Song, Y.; Zhu, X. Isoscape of δ18O in Precipitation of the Qinghai-Tibet Plateau: Assessment and Improvement. Water 2020, 12, 3392. https://doi.org/10.3390/w12123392

AMA Style

Shi Y, Wang S, Zhang M, Argiriou AA, Guo R, Song Y, Zhu X. Isoscape of δ18O in Precipitation of the Qinghai-Tibet Plateau: Assessment and Improvement. Water. 2020; 12(12):3392. https://doi.org/10.3390/w12123392

Chicago/Turabian Style

Shi, Yudong; Wang, Shengjie; Zhang, Mingjun; Argiriou, Athanassios A.; Guo, Rong; Song, Yang; Zhu, Xiaofan. 2020. "Isoscape of δ18O in Precipitation of the Qinghai-Tibet Plateau: Assessment and Improvement" Water 12, no. 12: 3392. https://doi.org/10.3390/w12123392

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