| 基于Argo浮标和EOF建立区域海水三维声速场的方法 |
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| 引用本文： | 李洪超,文汉江,蔡艳辉,胡淑梅,史小雨.基于Argo浮标和EOF建立区域海水三维声速场的方法[J].测绘科学,2012,37(2):74-76. |
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| 作者姓名： | 李洪超 文汉江 蔡艳辉 胡淑梅 史小雨 |
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| 作者单位： | 1. 辽宁工程技术大学测绘与地理科学学院,辽宁阜新123000;中国测绘科学研究院,北京100039
2. 中国测绘科学研究院,北京,100039 |
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| 基金项目： | 国家863重点项目(2009AA121402);国家自然科学基金(40874012);国家自然科学基金(40974008) |
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| 摘 要： | 本文提出了一种利用Argo浮标数据和经验正交函数(EOF)建立区域海水三维声速场的方法。利用局部区域内的Argo观测数据对该方法进行了验证,利用少量Argo浮标数据即可建立精度较高的三维海水声速场模型,预测区域内任意剖面的中误差在1 m/s左右。
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| 关 键 词： | EOF 三维声速场 Argo浮标 声速剖面 |
Modeling three-dimensional acoustic field in the ocean by using Argo and EOF |
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| LI Hong-chao
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WEN Han-jiang
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CAI Yan-hui
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HU Shu-mei
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SHI Xiao-yu.Modeling three-dimensional acoustic field in the ocean by using Argo and EOF[J].Science of Surveying and Mapping,2012,37(2):74-76. |
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| Authors: | LI Hong-chao WEN Han-jiang CAI Yan-hui HU Shu-mei SHI Xiao-yu |
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| Institution: | ①②(①School of Geomatics,Liaoning Technical University,Liaoning Fuxin 123000,China;②Chinese Academy of Surveying and Mapping,Beijing 100039,China) |
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| Abstract: | The method for modeling three-dimensional acoustic field in the ocean by using ARGO observations and EOF was proposed in this paper.The ARGO observations were used to fit profiles of acoustic speed in a local area by using EOF and spherical harmonic functions,the fitting results were compared to the observations from the ARGO not used in the modeling.Using only a few Argo buoys data an accuracy of 1 m/s could be achieved. |
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| Keywords: | EOF three-dimensional acoustic field Argo buoy sound speed profile |
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