Modeling Insights into Precipitation Deuterium Excess as an Indicator of Raindrop Evaporation in Lanzhou, China
The deuterium excess in precipitation is an effective indicator to assess the existence of sub-cloud evaporation of raindrops. Based on the synchronous measurements of stable isotopes of hydrogen and oxygen (<em>δ</em><sup>2</sup>H and <em>δ</em><sup>18</...
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MDPI AG
2021-01-01
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| Online Access: | https://www.mdpi.com/2073-4441/13/2/193 |
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| author | Fenli Chen Mingjun Zhang Athanassios A. Argiriou Shengjie Wang Qian Ma Xin Zhou Xixi Wu Jufan Chen |
| author_facet | Fenli Chen Mingjun Zhang Athanassios A. Argiriou Shengjie Wang Qian Ma Xin Zhou Xixi Wu Jufan Chen |
| author_sort | Fenli Chen |
| collection | DOAJ |
| description | The deuterium excess in precipitation is an effective indicator to assess the existence of sub-cloud evaporation of raindrops. Based on the synchronous measurements of stable isotopes of hydrogen and oxygen (<em>δ</em><sup>2</sup>H and <em>δ</em><sup>18</sup>O) in precipitation for several sites in Lanzhou, western China, spanning for approximately four years, the variations of deuterium excess between the ground and the cloud base are evaluated by using a one-box Stewart model. The deuterium excess difference below the cloud base during summer (−17.82‰ in Anning, −11.76‰ in Yuzhong, −21.18‰ in Gaolan and −12.41‰ in Yongdeng) is greater than that in other seasons, and difference in winter is weak due to the low temperature. The variations of deuterium excess in precipitation due to below-cloud evaporation are examined for each sampling site and year. The results are useful to understand the modification of raindrop isotope composition below the cloud base at a city scale, and the quantitative methods provide a case study for a semi-arid region at the monsoon margin. |
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| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-09T04:41:17Z |
| publishDate | 2021-01-01 |
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| spelling | doaj.art-baab6cb04e1145f1a87db971259b2d792023-12-03T13:20:12ZengMDPI AGWater2073-44412021-01-0113219310.3390/w13020193Modeling Insights into Precipitation Deuterium Excess as an Indicator of Raindrop Evaporation in Lanzhou, ChinaFenli Chen0Mingjun Zhang1Athanassios A. Argiriou2Shengjie Wang3Qian Ma4Xin Zhou5Xixi Wu6Jufan Chen7College 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, GreeceCollege 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, ChinaCollege of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, ChinaCollege of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, ChinaThe deuterium excess in precipitation is an effective indicator to assess the existence of sub-cloud evaporation of raindrops. Based on the synchronous measurements of stable isotopes of hydrogen and oxygen (<em>δ</em><sup>2</sup>H and <em>δ</em><sup>18</sup>O) in precipitation for several sites in Lanzhou, western China, spanning for approximately four years, the variations of deuterium excess between the ground and the cloud base are evaluated by using a one-box Stewart model. The deuterium excess difference below the cloud base during summer (−17.82‰ in Anning, −11.76‰ in Yuzhong, −21.18‰ in Gaolan and −12.41‰ in Yongdeng) is greater than that in other seasons, and difference in winter is weak due to the low temperature. The variations of deuterium excess in precipitation due to below-cloud evaporation are examined for each sampling site and year. The results are useful to understand the modification of raindrop isotope composition below the cloud base at a city scale, and the quantitative methods provide a case study for a semi-arid region at the monsoon margin.https://www.mdpi.com/2073-4441/13/2/193raindrop evaporationdeuterium excessprecipitationLanzhou |
| spellingShingle | Fenli Chen Mingjun Zhang Athanassios A. Argiriou Shengjie Wang Qian Ma Xin Zhou Xixi Wu Jufan Chen Modeling Insights into Precipitation Deuterium Excess as an Indicator of Raindrop Evaporation in Lanzhou, China Water raindrop evaporation deuterium excess precipitation Lanzhou |
| title | Modeling Insights into Precipitation Deuterium Excess as an Indicator of Raindrop Evaporation in Lanzhou, China |
| title_full | Modeling Insights into Precipitation Deuterium Excess as an Indicator of Raindrop Evaporation in Lanzhou, China |
| title_fullStr | Modeling Insights into Precipitation Deuterium Excess as an Indicator of Raindrop Evaporation in Lanzhou, China |
| title_full_unstemmed | Modeling Insights into Precipitation Deuterium Excess as an Indicator of Raindrop Evaporation in Lanzhou, China |
| title_short | Modeling Insights into Precipitation Deuterium Excess as an Indicator of Raindrop Evaporation in Lanzhou, China |
| title_sort | modeling insights into precipitation deuterium excess as an indicator of raindrop evaporation in lanzhou china |
| topic | raindrop evaporation deuterium excess precipitation Lanzhou |
| url | https://www.mdpi.com/2073-4441/13/2/193 |
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