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本文提出了用于海洋资料的一个客观分析方法。使用这个方法对温度场、气压场、高度场、海冰速度、海面风场和流函数等分别进行了分析。分析试验表明这个方法简单方便,分析精度较高。在建立该方法过程中还推导出了计算RSM误差公式。并使用这个公式讨论了噪声方差、观测信号尺度和噪声尺度对绘制误差图的影响。对分析场各种不同的统计量,这些图能够描述出相应统计量的误差空间分布,通过比较误差图可以看到不同的统计量对误差空间分布的影响。
This paper presents an objective analysis method for oceanographic data. Using this method, the temperature field, the pressure field, the height field, the sea ice speed, the sea surface wind field and the stream function are separately analyzed. Analysis shows that this method is simple and convenient, and the analysis accuracy is high. In the process of establishing this method, a formula for calculating RSM error has also been deduced. And use this formula to discuss the influence of noise variance, observed signal scale and noise scale on the drawing error graph. For different kinds of statistics of the analysis field, these graphs can describe the spatial distribution of the error of the corresponding statistics. By comparing the error graphs, we can see the influence of different statistics on the spatial distribution of the error.