| 积雪对祁连山区黑河上游活动层热状态的影响研究 |
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| 引用本文： | 张凤,范成彦,牟翠翠,孙文,彭小清,张廷军.积雪对祁连山区黑河上游活动层热状态的影响研究[J].冰川冻土,2021,43(6):1628-1640. |
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| 作者姓名： | 张凤 范成彦 牟翠翠 孙文 彭小清 张廷军 |
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| 作者单位： | 1.兰州大学 资源环境学院 西部环境教育部重点实验室，甘肃 兰州 730000;2.中国高校极地联合研究中心，北京 100875;3.南方海洋科学与工程广东省实验室（珠海），广东 珠海 519000;4.航天恒星科技有限公司，北京 100094;5.西安航天天绘数据技术有限公司，陕西 西安 710100 |
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| 基金项目： | 国家自然科学基金项目(42161160328);第二次青藏高原综合科学考察研究项目(2019QZKK0605);兰州大学中央高校基本科研业务费专项(lzujbky-2021-ct13);民用航天技术预测研究项目“卫星应用助力数字福建原型系统”（B0304）资助 |
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| 摘 要： | 积雪对多年冻土活动层和近地表的热状态具有重要影响。然而，积雪对祁连山区黑河上游地区多年冻土热状态的影响机制尚不清楚，迫切需要可靠的野外观测数据进行定量研究。基于两个典型野外监测站点2012—2019年观测数据，分析积雪对表面能量平衡、5 cm地表热通量及活动层热状态的影响。结果表明：厚度约21 cm的积雪在秋冬季对活动层具有保温作用；2013—2018年，俄博岭（EB）和野牛沟（PT1）监测场，活动层厚度分别为61~86 cm和159~164 cm，平均活动层厚度分别为74.2 cm和162.1 cm。受积雪影响，相隔两年（2015—2017年）的活动层厚度变化达25 cm。定量分析了祁连山积雪对多年冻土热状态的影响，为未来祁连山相关研究提供重要资料。
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| 关 键 词： | 积雪 热状态 活动层厚度 祁连山 |
| 收稿时间： | 2019-10-19 |
| 修稿时间： | 2020-07-05 |
Influences of snow cover on the thermal state of the active layer in the upper reaches of the Heihe River in the Qilian Mountains |
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| Feng ZHANG,Chengyan FAN,Cuicui MU,Wen SUN,Xiaoqing PENG,Tingjun ZHANG.Influences of snow cover on the thermal state of the active layer in the upper reaches of the Heihe River in the Qilian Mountains[J].Journal of Glaciology and Geocryology,2021,43(6):1628-1640. |
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| Authors: | Feng ZHANG Chengyan FAN Cuicui MU Wen SUN Xiaoqing PENG Tingjun ZHANG |
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| Institution: | 1.Key Laboratory of Westtern China’s Environmental Systems，Ministry of Education，College of Earth and Environmental Sciences，Lanzhou University，Lanzhou 730000，China;2.University Corporation for Polar Research，Beijing 100875，China;3.Southern Marine Science and Engineering Guangdong Laboratory （Zhuhai），Zhuhai 519000，Guangdong，China;4.Space Star Technology Co. ，LTD. ，Beijing 100094，China;5.Xi’an Aerospace Remote Sensing Data Technology Co. ，LTD. ，Xi’an 710100，China |
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| Abstract: | Snow cover has an important influence on the thermal state of the active layer and near-surface permafrost. However， the mechanism of snow cover influence on permafrost thermal state at mid and low latitudes largely remains unknown， and reliable field observation data are urgently needed for quantitative research. We analyzed the influences of snow cover on surface energy balance， surface heat flux at 5 cm， and the active layer thickness based on the observation data at two representative sites during 2012—2019. Results show that the snow cover depth greater than 21 cm shows a warming effect during autumn and winter. The active layer thickness range was separately 61~86 cm and 159~164 cm with a mean of 74.2 and 162.1 cm at Eboling （EB） and Yeniugou river basin （PT1） meteorological stations. Additionally， under the thermal influence of snow cover， the active layer thickness differed by 25 cm during 2015—2017. This study quantitative analyzes the influence of snow cover on permafrost thermal state in the upper Heihe River basin in the northeastern of the Qilian Mountains， thus providing a basis for future relevant research in this area. |
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| Keywords: | snow cover thermal state active layer thickness Qilian Mountains |
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