Snow cover influences the thermal regime of active layer in Urumqi River Source, Tianshan Mountains, China
文献类型：期刊论文
| 作者 | Zhao, Jing-yi; Chen, Ji; Wu, Qing-bai; Hou, Xin |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 卷号 | 15期号:12页码:2622-2636 |
| 关键词 | Snow cover Permafrost Ground temperature Tianshan Mountains Heat flux |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-018-4856-y |
| 文献子类 | Article |
| 英文摘要 | Snow cover is characterized by the high albedo, low thermal conductivity, and notable heat transition during phase changes. Thus, snow cover significantly affects the ground thermal regime. A comparison of the snow cover in high latitudes or high-altitude snowy mountain regions indicates that the eastern Tianshan Mountains (China) show a characteristically thin snow cover (snow depth below 15 cm) with remarkable temporal variability. Based on snow depth, heat flux, and ground temperature from 2014 to 2015 in the Urumqi River source, the spatialtemporal characteristics of snow cover and snow cover influences on the thermal conditions of active layer in the permafrost area were analyzed. During the autumn (Sept. - Oct.), thin and discontinuous snow cover can noticeably accelerate the exothermic process of the ground, producing a cooling effect on the shallow soil. During the winter (Nov. - Mar.), it is inferred that the effective thermal insulation starts with snow depth exceeding 10 cm during early winter. However, the snow depth in this area is generally below 15 cm, and the resulting snow-induced thermal insulation during the winter is very limited. Due to common heavy snowfalls in the spring (Apr. to May), the monthly mean snow thickness in April reached to 15 cm and remained until mid-May. Snow cover during the spring significantly retarded the ground warming. Broadly, snow cover in the study area exerts a cooling effect on the active layer and plays a positive role in the development and preservation of permafrost. |
| 电子版国际标准刊号 | 1993-0321 |
| 语种 | 英语 |
| WOS记录号 | WOS:000453393800006 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/46362]  |
| 专题 | Journal of Mountain Science_Journal of Mountain Science-2018_Vol15 No.12 |
| 推荐引用方式 GB/T 7714 | Zhao, Jing-yi,Chen, Ji,Wu, Qing-bai,et al. Snow cover influences the thermal regime of active layer in Urumqi River Source, Tianshan Mountains, China[J]. JOURNAL OF MOUNTAIN SCIENCE,15(12):2622-2636. |
| APA | Zhao, Jing-yi,Chen, Ji,Wu, Qing-bai,&Hou, Xin. |
| MLA | Zhao, Jing-yi,et al."Snow cover influences the thermal regime of active layer in Urumqi River Source, Tianshan Mountains, China".JOURNAL OF MOUNTAIN SCIENCE 15.12 |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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