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冰川冻土 ›› 2021, Vol. 43 ›› Issue (6): 1628-1640.doi: 10.7522/j.issn.1000-0240.2021.0109

• 第二次青藏高原综合科学考察研究 • 上一篇    下一篇

积雪对祁连山区黑河上游活动层热状态的影响研究

张凤1,4,5(),范成彦1,牟翠翠1,2,3(),孙文1,彭小清1,张廷军1,2   

  1. 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
  • 收稿日期:2019-10-19 修回日期:2020-07-05 出版日期:2021-12-31 发布日期:2022-01-28
  • 通讯作者: 牟翠翠 E-mail:fzhang2017@lzu.edu.cn;mucc@ lzu.edu.cn
  • 作者简介:张凤,工程师,主要从事多年冻土碳循环研究和遥感应用算法研发. E-mail: fzhang2017@lzu.edu.cn
  • 基金资助:
    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

Influences of snow cover on the thermal state of the active layer in the upper reaches of the Heihe River in the Qilian Mountains

Feng ZHANG1,4,5(),Chengyan FAN1,Cuicui MU1,2,3(),Wen SUN1,Xiaoqing PENG1,Tingjun ZHANG1,2   

  1. 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
  • Received:2019-10-19 Revised:2020-07-05 Online:2021-12-31 Published:2022-01-28
  • Contact: Cuicui MU E-mail:fzhang2017@lzu.edu.cn;mucc@ lzu.edu.cn

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。

关键词: 积雪, 热状态, 活动层厚度, 祁连山

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.

Key words: snow cover, thermal state, active layer thickness, Qilian Mountains

中图分类号: 

  • P642.14