Global forecasting experiments on Lorenz model show that, PAU, ICE, and interval of observation samples have significant impact on analogue correction of errors, as well as analogue number, systematical and random observation errors.

• Lorenz模式的全局预报试验表明,相似更新周期、误差订正间隔和观测样本间隔都对相似误差订正影响很大; 相似个数、系统性和随机观测误差也会产生明显影响;