“地气图”方法用于省级旱涝预测的实践

Provincial Dryness and Wetness Prediction by Earth-atomsphere Chart

简要介绍用“地气图”方法进行降水预测的基本思路，总结此方法的预报实践，指出省级尺度旱涝预测需要解决的几个关键问题，强调除加密观测外。

For the earth-atomsphere chart method,the paper introduced briefly basic idea of precipitation forecast,and summarized and pointed out some key problems on provincial scale dryness-wetness prediction. lt is emphasized that energy dispersive function strengthened by upper geothermal edd is main reason of lower edd development except densed observations.