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| DOI | 10.1016/j.apgeochem.2024.105909 |
| Seasonal variations of a glacier river runoff components as relative to changes of air temperature and precipitation in southeast Tibetan Plateau | |
| 发表日期 | 2024 |
| ISSN | 0883-2927 |
| EISSN | 1872-9134 |
| 起始页码 | 162 |
| 卷号 | 162 |
| 英文摘要 | The glacier river is highly sensitive to the temperature and precipitation change in the alpine regions. However, to what extent of this sensitivity is still not clear. In this work, a procedure to quantify the impact of temperature and precipitation on water runoff components is proposed with a benchmark study at a typical temperate glacier catchment of Mingyong in the southeastern Tibetan Plateau (SETP). Firstly, we use Bayesian Monte Carlo Mixing Model to calculate contributions of different recharging sources to runoff from 213 water samples within a whole hydrological year (from August 2017 to July 2018). Hydrograph separation results show that the meltwater occupied the highest proportion in runoff from June to September (up to 58.4%) and the contribution of groundwater to runoff reached the maximum in January. Secondly, by establishing the relationships between temperature, precipitation and fractions of runoff components, we find that temperature change contributes about 78% to affecting the runoff components in Mingyong catchment at the intra-annual scale. Meanwhile, precipitation change occupies approximately 22% in influencing contributions of different endmembers to stream mainly by accelerating the melting process of glacier and accumulated snow as well as recharging the river directly. Finally, a conceptual model is developed to show the influence of temperature and precipitation on the runoff components in Mingyong catchment. The findings can not only provide essential evidence on gaining more insights into the mechanism of glacier river flow variation but also benefit for the strategy making for water resources management in alpine regions. |
| 英文关键词 | Glacier catchment; Glacier river components; Temperature; Precipitation; Tibetan Plateau |
| 语种 | 英语 |
| WOS研究方向 | Geochemistry & Geophysics |
| WOS类目 | Geochemistry & Geophysics |
| WOS记录号 | WOS:001172955800001 |
| 来源期刊 | APPLIED GEOCHEMISTRY
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/299135 |
| 作者单位 | Chinese Academy of Sciences; Institute of Geology & Geophysics, CAS; Chinese Academy of Sciences; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Chinese Academy of Sciences; Zhejiang Normal University; Chinese Academy of Sciences; Institute of Geology & Geophysics, CAS |
| 推荐引用方式 GB/T 7714 | . Seasonal variations of a glacier river runoff components as relative to changes of air temperature and precipitation in southeast Tibetan Plateau[J],2024,162. |
| APA | (2024).Seasonal variations of a glacier river runoff components as relative to changes of air temperature and precipitation in southeast Tibetan Plateau.APPLIED GEOCHEMISTRY,162. |
| MLA | "Seasonal variations of a glacier river runoff components as relative to changes of air temperature and precipitation in southeast Tibetan Plateau".APPLIED GEOCHEMISTRY 162(2024). |
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