| 引用本文: | 汤瑞,穆振侠,周育琳,等.基于SRM模型的天山西部山区融雪径流研究[J].灌溉排水学报,2018,37(11):106-112. |
| TANG Rui,MU Zhenxia,ZHOU Yulin,et al.基于SRM模型的天山西部山区融雪径流研究[J].灌溉排水学报,2018,37(11):106-112. |
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| 基于SRM模型的天山西部山区融雪径流研究 |
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汤瑞， 穆振侠， 周育琳， 尹梓渊， 彭亮
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新疆农业大学 水利与土木工程学院， 乌鲁木齐 830052
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| 摘要: |
| 【目的】指导天山西部山区冰雪水资源合理的开发利用。【方法】借助1990—2000年水文气象数据、DEM数据及2000—2016年MODIS数据，采用SRM模型并考虑了雪线动态变化可能造成的影响，分析了喀什河流域径流的变化。【结果】率定期的决定系数和体积差分别为0.83和6.81%，验证期的分别为0.82和12.69%；雪线高度和积雪覆盖率的相关性在各高程带上均显著，R2达到0.88以上；借助雪线和积雪覆盖率之间的动态变化关系，采用假定雪线情景法，雪线上升100 m和200 m时，径流量增幅不明显，分别为1.63%和0.14%；雪线下降100 m和200 m时，径流增幅分别为19.72%和33.92%。【结论】 SRM模型在本研究区有较好的适用性，雪线高度和积雪覆盖率存在较好的相关性，且假定情景下雪线下降将导致径流量大幅增加。 |
| 关键词: SRM模型； MODIS； 融雪径流； 雪线 |
| DOI：10.13522/j.cnki.ggps.2017.0622 |
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| Modelling Runoff of the Melted Snowpack in Western Tianshan Mountain Using the SRM Model |
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TANG Rui, MU Zhenxia, ZHOU Yulin, YIN Ziyuan, PENG Liang
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College of Water Conservancy and Civil Engineering， Xinjiang Agricultural University， Urumqi 830052, China
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| Abstract: |
| 【Objective】The objective of this paper is to model flow of the meted snowpack in western Tianshan Mountains aimed to help rationally use of the ice and water resources.【Method】 We used the SRM model, with full consideration of the possible effects of dynamic changes in the snowline, to simulate the runoff of the melted snowpack in the Kashi River basin based on the hydrological and meteorological data measured from 1990 to 2000, as well as the MODIS and DEM data. 【Result】 The coefficient of determination and volume difference of the modeled results were 0.83 and 6.81% respectively for the calibrated period, and 0.82 and 12.69% respectively for the verification period. The elevation of the snowline and the associated snow coverage was correlated with R2>0.88. Using this correlation, we estimated that when the elevation of the hypothetical snowline increased by 100 m and 200 m, the associated runoff increased by 1.63% and 0.14% respectively. In contrast, when the elevation of the snowline decreased by 100 m or 200 m, the associated runoff increased by 19.72% and 33.92% respectively.【Conclusion】 The proposed model works well in the studied area. There is a good correlation between the elevation of the snowline and the associated snow cover, and an decrease in snowline elevation leads to a substantial increase in runoff. |
| Key words: SRM model; MODIS; snowmelt runoff; snowline |
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