| 北极夏季海冰表面积雪层内水分含量的时空分布 |
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| 引用本文： | 李志军,赵海清,冯恩民,CHENG Bin,卢鹏.北极夏季海冰表面积雪层内水分含量的时空分布[J].水科学进展,2007,18(1):24-28. |
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| 作者姓名： | 李志军 赵海清 冯恩民 CHENG Bin 卢鹏 |
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| 作者单位： | 1.大连理工大学海岸和近海工程国家重点实验室, 辽宁, 大连, 116024; |
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| 基金项目： | 国家自然科学基金;科技基础性工作和社会公益研究资助专项;国家自然科学基金;中国第二次北极考察项目 |
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| 摘 要： | 根据中国第二次北极科学考察实测雪冰温度剖面数据,用一维热传导方程描述雪层温度场,优化辨识了雪层有效热扩散系数和热源。将零热源项作为积雪层中含水和不含水雪层的边界,确定出相应含水和不含水雪层的有效热扩散系数。结合干雪、水物理参数建立雪层内含水量的评估方法并给出北极夏季雪冰温度测试期间雪层内水分含量与温度的关系以及水分变化的时空分布。
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| 关 键 词： | 北极 夏季 海冰 积雪 含水量 时空分布 |
| 文章编号： | 1001-6791（2007）01-0024-05 |
| 收稿时间： | 2005-09-06 |
| 修稿时间： | 2006-01-04 |
Time-space distribution of water content in the snow on Arctic sea ice surface in summer |
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| LI Zhi-jun,ZHAO Hai-qing,FENG En-min,CHENG Bin,LU Peng.Time-space distribution of water content in the snow on Arctic sea ice surface in summer[J].Advances in Water Science,2007,18(1):24-28. |
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| Authors: | LI Zhi-jun ZHAO Hai-qing FENG En-min CHENG Bin LU Peng |
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| Institution: | 1.State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China;2.Department of Applied Mathematics, Dalian University of Technology, Dalian 116024, China;3.Finnish Institute of Marine Research, Helsinki FIN-00931, Finland |
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| Abstract: | Based on the snow vertical temperature profiles measured during CHINARE2003 Arctic Expedition, the temperature distribution in snow is described by using one-dimension thermal transfer equation, and the effective thermal diffusion coefficients and thermal sources. The zero thermal source is defined as the snow without water. The evaluation method of the water content in snow is set up with the known physical parameters of snow and ice. The relation of water content and the snow temperature, and the water content distribution with time and space are given. |
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| Keywords: | Arctic sea ice snow water content time-space distribution |
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