环境气象学中的方向数据统计

在环境气象学中,方向数据具有它的特点,统计与普通的数理统计不同。本文将方向数据统计用于环境科学,用风向玫瑰图直观地表达了风向数据,介绍了平均风向的概念和计算方法及风向标准差的合理计算。最后给出厦门市风向研究实例。

Statistics of Directional Data in Environmental Meteorology

There are many problems in environmental meteorology in which only angles are concerned. Directional data have specific features resulting in the apparent differences between statistics of directional data and general mathematical statistics. In this paper, statistics of directional data is applied to the ennvironmental science. By means of direct-viewing wind rose, wind direction data is naturally expressed. The concept and calculation of average wind direction is introduced, and the reasonable calculation of wind direction standard deviation is also illuminat-ed. As an example, the wind directions in xiamen was studied.