【摘要】 本文根据极迹半径的变化规律提出了一种通过外推极迹半径预报地极坐标的方法。本方法的特点是预报时地极坐标的x和y两个分量结合成整体运算。一般情况下半年的预报度在80％以上,但在极迹半径最小的时期预测误差太大。更多还原

【Abstract】 According to the variation of the radii of poIar hodopath,a predictive procedure of polar coordinates is given in this paper by means of extrapolation of the radii. The characteristic of present algoritnm is the combination of x and y components in one procedure. The predictability of more than 80％ corresponding to the extrapolation length of a half year has generally been found,but during the period of the minimum radii of polar hodograph the prediction errors are too large to be adopted.更多还原