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冰–水侧向融化过程的实验室试验研究

贾磊 姜令强 卢鹏 解飞 祖永恒 王庆凯 李志军

贾磊,姜令强,卢鹏,等. 冰–水侧向融化过程的实验室试验研究[J]. 海洋学报,2023,45(2):42–50 doi: 10.12284/hyxb2023011
引用本文: 贾磊,姜令强,卢鹏,等. 冰–水侧向融化过程的实验室试验研究[J]. 海洋学报,2023,45(2):42–50 doi: 10.12284/hyxb2023011
Jia Lei,Jiang Lingqiang,Lu Peng, et al. Laboratory experimental study on the lateral melting process of ice layer[J]. Haiyang Xuebao,2023, 45(2):42–50 doi: 10.12284/hyxb2023011
Citation: Jia Lei,Jiang Lingqiang,Lu Peng, et al. Laboratory experimental study on the lateral melting process of ice layer[J]. Haiyang Xuebao,2023, 45(2):42–50 doi: 10.12284/hyxb2023011

冰–水侧向融化过程的实验室试验研究

doi: 10.12284/hyxb2023011
基金项目: 国家自然科学基金(41876213,41922045);辽宁省兴辽英才计划项目(XLYC2007033);国家重点研发计划(2018YFA0605901)。
详细信息
    作者简介:

    贾磊(1998-),男,河北省邢台市人,主要从事海冰物理研究。E-mail: Jialei9805@mail.dlut.edu.cn

    通讯作者:

    卢鹏,教授,主要从事极地海冰变化研究。E-mail: lupeng@dlut.edu.cn

  • 中图分类号: P731.15

Laboratory experimental study on the lateral melting process of ice layer

  • 摘要: 为了探究冰层侧向融化过程,定量分析影响冰层侧向融化的主导因素,在低温实验室水槽内实施了浮冰融化实验。同步测量了冰底面和表面生消过程、浮冰侧向融化过程,同时记录了实验室气温、冰样内部不同深度处的冰温及开阔水域不同深度处的水温,利用相关分析方法研究了不同要素之间的关系及其对浮冰侧向融化速率的影响规律。结果表明,融冰前期冰样内部不同深度处的侧向融化缓慢且均匀,平均融化速率为0.05 mm/h;融冰中后期不同深度处的侧向融化速率显著增加且不再均匀,平均融化速率为0.15 mm/h。平均侧向融化速率与气温的相关系数较好(r=0.82),优于其与平均水温(r=0.74)和水–冰温度差(r=0.48)的相关系数。建立侧向融化速率随温度(气温、水温)和深度变化的定量关系,可以准确描述浮冰侧向融化过程的非均匀性。同时验证了进行非均匀性侧向融化试验技术的可行性,为更加接近北极真实情况考虑风速和光源条件的海冰试验奠定了基础。
  • 图  1  实验装置示意图(单位:mm)

    Fig.  1  Schematic diagram of experimental device (unit: mm)

    图  2  侧向融化观测装置图

    Fig.  2  Schematic diagram of lateral melting observation device

    图  3  试验期间的气温变化

    Fig.  3  Temperature change during the experiment

    图  4  侧向、底面以及表面融化量对比(a)和累积正气温与竖向及侧向融化量的关系(b)

    Fig.  4  Comparison of lateral, bottom and surface melting (a) and relationship between cumulative positive air temperature and vertical and lateral melt (b)

    图  5  冰–水界面位置变化

    Fig.  5  Variation of the lateral position of the ice layer

    图  6  试验期间的冰温变化

    图中黑色实线为冰底面位置

    Fig.  6  Ice temperature variation during the experiment

    The solid black line is the ice base

    图  7  试验期间不同深度处的水温

    Fig.  7  Water temperature at different depths during the experiment

    图  8  气温与平均侧向融化速率的拟合关系

    Fig.  8  Fitting relationship between temperature and mean lateral melting rate

    图  9  平均水温及水冰温差与平均侧向融化速率拟合图

    Fig.  9  Fitting diagram of average water temperature and water-ice-temperature difference with average lateral melting rate

    图  10  气温与水下不同深度处侧向融化速率的变化关系

    Fig.  10  Relationship between temperature and lateral melting rate at different depths of water

    图  11  侧向融化速率与气温和深度(a)、水温和深度(b)的变化关系

    Fig.  11  The relationship between lateral melting rate with temperature and water depth (a), water temperature and depth (b)

    表  1  冰样三面融化对比

    Tab.  1  Comparison of melting on three sides of the ice layer

    冰样位置融化厚度/cm平均融化速率/(mm·h–1融化体积占比/%
    表面80.2457.7
    底面50.1536.1
    侧面30.096.2
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-05-07
  • 修回日期:  2022-08-24
  • 网络出版日期:  2022-11-11
  • 刊出日期:  2023-02-01

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