基于Argo浮标和EOF建立区域海水三维声速场的方法  

Modeling three-dimensional acoustic field in the ocean by using Argo and EOF

作　　者：李洪超[1,2] 文汉江[2] 蔡艳辉[2] 胡淑梅[1,2] 史小雨[1,2] 

机构地区：[1]辽宁工程技术大学测绘与地理科学学院,辽宁阜新123000 [2]中国测绘科学研究院,北京100039

出　　处：《测绘科学》2012年第2期74-76,共3页Science of Surveying and Mapping

基　　金：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)

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。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.

关 键 词：EOF 三维声速场 ARGO浮标 声速剖面 

分 类 号：P229[天文地球—大地测量学与测量工程]