The forecasting results show that before the year 2000,1997 will be the most severe drought year with not only severe drought damage but also long drought period.
预测结果表明：2000年前，1997年将是黄淮海流域地区最大的干旱年，不仅旱情重而且持续时间长；
Period superposition forecasting model is a practical method in mid-to-long-term hydrological forecasting.
周期迭加预报是中长期水文预报的一种实用模型。
应用推荐