| 湖-气热传输模型及参数敏感性研究 |
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| 引用本文： | 颜金凤,李倩,夏南,孙菽芬.湖-气热传输模型及参数敏感性研究[J].湖泊科学,2007,19(6):735-743. |
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| 作者姓名： | 颜金凤 李倩 夏南 孙菽芬 |
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| 作者单位： | 1. 上海大学,上海市应用数学和力学研究所,上海,200072
2. 中国科学院大气物理研究所LASG,北京,100029 |
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| 基金项目： | 国家自然科学基金
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中国科学院知识创新工程项目 |
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| 摘 要： | 在一维涡扩散模型的基础上,发展了考虑冬天结冰和夏天蒸发等水体相变问题及对流混合过程的湖-气热传输模型.模型采用焓代替温度作为预报变量,这也更加方便处理水的相变问题.模型的计算结果与以色列Kinneret湖的观测资料进行对比,验证了模型的合理性,说明了加入对流混合过程是符合湖-气热传输的实际物理机制的.对风速和湖面摩擦速度作了敏感性实验,证明他们对湖面温度和蒸发潜热有着重要的影响.
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| 关 键 词： | 湖-气热传输 湖泊环境 大气环境 陆面过程 传输模型 参数 敏感性研究 lake atmosphere sensibility parameter model heat exchange 影响 蒸发潜热 敏感性实验 摩擦速度 风速 物理机制 热传输 合理性 验证 观测资料 Kinneret |
| 收稿时间： | 2006-09-11 |
| 修稿时间： | 2007-04-10 |
Investigation of heat exchange model and parameter semdbility between the atmosphere and lake |
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| YAN Jinfeng,LI Qian,XIA NanI and SUN Shufen.Investigation of heat exchange model and parameter semdbility between the atmosphere and lake[J].Journal of Lake Science,2007,19(6):735-743. |
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| Authors: | YAN Jinfeng LI Qian XIA NanI and SUN Shufen |
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| Institution: | Shanghai Institute of Applied Mathematics and Mechanic, Shanghai University, Shanghai 200072, P. R. China,LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, P. R. China,Shanghai Institute of Applied Mathematics and Mechanic, Shanghai University, Shanghai 200072, P. R. China and LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, P. R. China |
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| Abstract: | Based on a one-dimensional eddy diffusion model, the model for studying the heat and mass exchange between the atmosphere and water body is developed, in which the phase change of water in winter and summer is included and the importance of the convective mixing process is emphasized. The model uses enthalpy instead of temperature as the forecast variable, which helps us to easily deal with phase change process. The model is verified by observed data of Lake Kinneret, which emphasizes adding convective mixing process is in accord with the practical physical mechanism of heat and mass exchange between the atmosphere and water body. The sensibility tests of wind velocity and surface friction velocity of lake verify their great influence on lake surface temperature and latent heat. |
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| Keywords: | Heat and mass exchange between the atmosphere and lake lake-environment atmosphere-environment land surface process |
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