| 一种新的声速剖面结构参数化方法 |
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| 引用本文： | 张旭,张永刚,张健雪,董楠.一种新的声速剖面结构参数化方法[J].海洋学报,2011,33(5):54-60. |
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| 作者姓名： | 张旭 张永刚 张健雪 董楠 |
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| 作者单位： | 1.中国人民解放军91550部队,辽宁 大连 116023 |
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| 摘 要： | 在Munk模型和GDEM模型的基础上,提出了一种新的声速剖面结构参数化模型,即分层声速剖面模型(LSSPM).模型用含9个参数的四层分段函数分别描述混合层、主跃层、深海声道层和深海等温层的声速结构,形式简明、直观.数值实验结果表明,LSSPM模型对声速剖面的拟合可达到较高的精度,且对于中国周边的深海和浅海区域有较好的适...
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| 关 键 词： | 声速剖面 Munk模型 GDEM模型 经验正交函数(EOF) 分层声速剖面模型(ILSSPM) |
| 收稿时间： | 7/3/2009 12:00:00 AM |
A new model for calculating sound speed profile structure |
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| ZHANG Xu,ZHANG Yong-gang,ZHANG Jian-xue and DONG Nan.A new model for calculating sound speed profile structure[J].Acta Oceanologica Sinica (in Chinese),2011,33(5):54-60. |
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| Authors: | ZHANG Xu ZHANG Yong-gang ZHANG Jian-xue and DONG Nan |
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| Institution: | 1.Unit 91550 of PLA, Dalian 116018, China2.Institute of Marine Environment, Ocean University of China, Qingdao 266003, China |
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| Abstract: | A new model for calculating sound speed profile (SSP) structure, namely Layered Sound Speed Profile Model (LSSPM), is developed based on Munk model and Generalized Digital Environmental Model(GDEM). In this model, the SSP structure composed of mixed layer, thermocline, deep channel layer and deep isothermal layer is depicted respectively by a set of expressions with 9 coefficients, which have a concise and distinct form. The results of numerical experiments show that LSSPM can provide a precise calculation for SSP fitness, and can be applicable for both deep and shallow sea areas adjacent China. |
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| Keywords: | sound speed profile (SSP) Munk model Generalized Digital Environmental Model (GDEM) empirical orthogonal functions (EOF) Layered Sound Speed Profile Model (LSSPM) |
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