Observing and Modeling the Isotopic Evolution of Snow Meltwater on the Southeastern Tibetan Plateau
文献类型：期刊论文
| 作者 | Pu, Tao4; Wang, Ke3; Kong, Yanlong3; Shi, Xiaoyi1; Kang, Shichang4,5; Huang, Yonghui3; He, Yuanqing4; Wang, Shijin4; Lee, Jeonghoon2; Cuntz, Matthias6 |
| 刊名 | WATER RESOURCES RESEARCH
 |
| 出版日期 | 2020-09-01 |
| 卷号 | 56期号:9页码:19 |
| 关键词 | snow meltwater isotopic evolution model isotopic exchange temperate glacier Tibetan Plateau |
| ISSN号 | 0043-1397 |
| DOI | 10.1029/2019WR026423 |
| 英文摘要 | Observing the isotopic evolution of snow meltwater helps in understanding the process of snow melting but remains a challenge to acquire in the field. In this study, we monitored the melting of two snowpacks near Baishui Glacier No. 1, a typical temperate glacier on the southeastern Tibetan Plateau. We employed a physically based isotope model (PBIM) to calculate the isotopic composition of meltwater draining from natural snowpacks. The initial condition of the PBIM was revised to account for natural conditions, i.e., the initial delta O-18 stratigraphy of snow layers before melting. Simulations revealed that the initial heterogeneity of delta O-18 in snow layers as well as ice-liquid isotopic exchange were responsible for most variations of delta O-18 in snow meltwater, whereas new snow and wind drift could result in sudden changes of the isotopic composition of the meltwater. The fraction of ice involved in the isotopic exchange (f) was the most sensitive parameter for the model output. The initial delta O-18 in the snowpack is mirrored in meltwater in case of smallfand is smoothed with a large exchange fractionf. The other unknown parameter of the PBIM is the dimensionless rate constant of isotopic exchange, which depends on water percolation and initial snow depth. The successful application of the PBIM in the field might not only be useful for understanding snow melting process but might also provide the possibility of predicting the isotopic composition of snow meltwater and improve the accuracy of hydrograph separation. |
| WOS关键词 | ONE-DIMENSIONAL MODEL ; STABLE-ISOTOPES ; RIVER-BASIN ; HYDROGRAPH SEPARATION ; GLACIER MELT ; SEASONAL SNOWPACK ; KOHNEN STATION ; MASS-BALANCE ; SURFACE SNOW ; LIQUID WATER |
| 资助项目 | National Natural Science Foundation of China[91647101] ; National Natural Science Foundation of China[41705132] ; State Key Laboratory of Cryospheric Sciences[SKLCS-ZZ-2020] ; China Postdoctoral Science Foundation[2016 T90964] ; China Postdoctoral Science Foundation[2014 M552517] |
| WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000578452200008 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; State Key Laboratory of Cryospheric Sciences ; State Key Laboratory of Cryospheric Sciences ; State Key Laboratory of Cryospheric Sciences ; State Key Laboratory of Cryospheric Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; State Key Laboratory of Cryospheric Sciences ; State Key Laboratory of Cryospheric Sciences ; State Key Laboratory of Cryospheric Sciences ; State Key Laboratory of Cryospheric Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; State Key Laboratory of Cryospheric Sciences ; State Key Laboratory of Cryospheric Sciences ; State Key Laboratory of Cryospheric Sciences ; State Key Laboratory of Cryospheric Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; State Key Laboratory of Cryospheric Sciences ; State Key Laboratory of Cryospheric Sciences ; State Key Laboratory of Cryospheric Sciences ; State Key Laboratory of Cryospheric Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/98321]  |
| 专题 | 地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室 |
| 通讯作者 | Pu, Tao; Kong, Yanlong |
| 作者单位 | 1.Zhejiang Normal Univ, Coll Geog & Environm Sci, Jinhua, Zhejiang, Peoples R China 2.Ewha Womans Univ, Dept Sci Educ, Seoul, South Korea 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China 4.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou, Peoples R China 5.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China 6.Univ Lorraine, AgroParisTech, INRAE, UMR Silva, Nancy, France |
| 推荐引用方式 GB/T 7714 | Pu, Tao,Wang, Ke,Kong, Yanlong,et al. Observing and Modeling the Isotopic Evolution of Snow Meltwater on the Southeastern Tibetan Plateau[J]. WATER RESOURCES RESEARCH,2020,56(9):19. |
| APA | Pu, Tao.,Wang, Ke.,Kong, Yanlong.,Shi, Xiaoyi.,Kang, Shichang.,...&Cuntz, Matthias.(2020).Observing and Modeling the Isotopic Evolution of Snow Meltwater on the Southeastern Tibetan Plateau.WATER RESOURCES RESEARCH,56(9),19. |
| MLA | Pu, Tao,et al."Observing and Modeling the Isotopic Evolution of Snow Meltwater on the Southeastern Tibetan Plateau".WATER RESOURCES RESEARCH 56.9(2020):19. |
入库方式： OAI收割
来源：地质与地球物理研究所
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