| 大洋细结构混合参数化方法在世界大洋环流模式中的应用 |
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| 引用本文： | 刘又毓,范植松.大洋细结构混合参数化方法在世界大洋环流模式中的应用[J].中国海洋大学学报(自然科学版),2005,35(4):534-538. |
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| 作者姓名： | 刘又毓 范植松 |
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| 作者单位： | 中国海洋大学海洋环境学院,山东,青岛,266003 |
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| 基金项目： | 国家高技术研究发展计划(2002AA633120)资助 |
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| 摘 要： | 在大洋环流模式中，铅直混合的参数化方法起着关键性的作用。将大洋细结构混合参数化方法首次应用于世界大洋环流模式中。使用中科院大气所(LASG)发展的20层世界大洋环流模式(OGCM)ML20，月平均风场作为强迫场，利用ML20模式在稳定初始状态下运行300a后的计算结果作为本实验进行数值模拟的初始场。该参数化方法对世界大洋环流模式的影响主要表现为：永久性温度跃层的厚度明显变薄；对深层水和底层水的模拟有改进；对南极中层水的模拟比较成功；但是对赤道海区的模拟结果欠佳。
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| 关 键 词： | 世界大洋环流模式 大洋细结构混合参数化方法 温度跃层 |
| 文章编号： | 1672-5174(2005)04-534-05 |
| 修稿时间： | 2004年6月2日 |
An Application of Parameterization Scheme of Ocean Finestructure Mixing to the Numerical Experiment of OGCM |
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| LIU You-Yu,FAN Zhi-Song.An Application of Parameterization Scheme of Ocean Finestructure Mixing to the Numerical Experiment of OGCM[J].Periodical of Ocean University of China,2005,35(4):534-538. |
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| Authors: | LIU You-Yu FAN Zhi-Song |
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| Abstract: | In the study of the global oceanic general circulation model (OGCM), it is deemed by the oceanographer community that, the parameterization of vertical mixing plays a key role. In this paper, the scheme of parameterization of ocean finestructure mixing proposed by Fan (2002) is firstly applied to OGCM, which is a twenty-layer OGCM developed by IAP/LASG (ML20). In order to study the effects of the scheme of parameterization of ocean finestructure mixing on OGCM, the model is spun up from a motorial state, which has been attained by means of integration for 300 years using ML20. The initial conditions for temperature and salinity are taken from the three-dimensional distributions of Levitus' annual mean observation with seasonal varying climatological forcing at the surface. The effects of the scheme on OGCM are mainly as follows: The simulated thickness of permanent thermocline is obviously thinner than that obtained from ML20; encouraging improvement in simulation of the deep waters and the bottom waters is obtained; A better simulation of the Antarctic Intermediate Water (AAIW) is obtained; But the simulation in equatorial regions is not satisfactory. |
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| Keywords: | global oceanic general circulation model scheme of parameterization of ocean finestructure mixing thermocline |
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