Isoscape of <i>δ</i><sup>18</sup>O in Precipitation of the Qinghai-Tibet Plateau: Assessment and Improvement
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 Is...
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| Format: | Article |
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MDPI AG
2020-12-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/12/12/3392 |
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| author | Yudong Shi Shengjie Wang Mingjun Zhang Athanassios A. Argiriou Rong Guo Yang Song Xiaofan Zhu |
| author_facet | Yudong Shi Shengjie Wang Mingjun Zhang Athanassios A. Argiriou Rong Guo Yang Song Xiaofan Zhu |
| author_sort | Yudong Shi |
| collection | DOAJ |
| description | 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 <i>δ</i><sup>18</sup>O 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. |
| first_indexed | 2024-03-10T14:23:24Z |
| format | Article |
| id | doaj.art-7aebd75b572442e2971b4cd51a5488db |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T14:23:24Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-7aebd75b572442e2971b4cd51a5488db2023-11-20T23:14:23ZengMDPI AGWater2073-44412020-12-011212339210.3390/w12123392Isoscape of <i>δ</i><sup>18</sup>O in Precipitation of the Qinghai-Tibet Plateau: Assessment and ImprovementYudong Shi0Shengjie Wang1Mingjun Zhang2Athanassios A. Argiriou3Rong Guo4Yang Song5Xiaofan Zhu6College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, ChinaCollege of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, ChinaCollege of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, ChinaLaboratory of Atmospheric Physics, Department of Physics, University of Patras, GR-265 00 Patras, GreeceInstitute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, ChinaCollege of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, ChinaNorthwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, ChinaThe 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 <i>δ</i><sup>18</sup>O 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.https://www.mdpi.com/2073-4441/12/12/3392precipitationQinghai-Tibet Plateau<i>δ</i><sup>18</sup>O, isoscapefuzzy cluster |
| spellingShingle | Yudong Shi Shengjie Wang Mingjun Zhang Athanassios A. Argiriou Rong Guo Yang Song Xiaofan Zhu Isoscape of <i>δ</i><sup>18</sup>O in Precipitation of the Qinghai-Tibet Plateau: Assessment and Improvement Water precipitation Qinghai-Tibet Plateau <i>δ</i><sup>18</sup>O, isoscape fuzzy cluster |
| title | Isoscape of <i>δ</i><sup>18</sup>O in Precipitation of the Qinghai-Tibet Plateau: Assessment and Improvement |
| title_full | Isoscape of <i>δ</i><sup>18</sup>O in Precipitation of the Qinghai-Tibet Plateau: Assessment and Improvement |
| title_fullStr | Isoscape of <i>δ</i><sup>18</sup>O in Precipitation of the Qinghai-Tibet Plateau: Assessment and Improvement |
| title_full_unstemmed | Isoscape of <i>δ</i><sup>18</sup>O in Precipitation of the Qinghai-Tibet Plateau: Assessment and Improvement |
| title_short | Isoscape of <i>δ</i><sup>18</sup>O in Precipitation of the Qinghai-Tibet Plateau: Assessment and Improvement |
| title_sort | isoscape of i δ i sup 18 sup o in precipitation of the qinghai tibet plateau assessment and improvement |
| topic | precipitation Qinghai-Tibet Plateau <i>δ</i><sup>18</sup>O, isoscape fuzzy cluster |
| url | https://www.mdpi.com/2073-4441/12/12/3392 |
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