【摘要】 依照输送水汽的环流系统和降水的天气学条件,将我国分为十个区。将每个区的0.8米地温距平与相邻各区相比较,从而将地温距平状况分为5个等级:即:高(+2级)、次高(+1级)、平(0级)、次低(- 1级)、低(- 2级)。用每一区中降水正距平面积所占比例(PR~′_s)作为指标,发现冬季(12—2月)地温等级与春季(3—5月)PR~′_s的正相关非常密切,据此建立了预报回归方程。最后用1984和1985年实例,叙述了季度降水的预报方法。更多还原

【Abstract】 According to the vapor transport and precipitation systems, China can be divided into 10 zones. Based upon the comparison among these zones, the departure of soil temperature was classed into 5 degrees (High, Subhigh, Moderate, Sublow, Low).There is a very good correla tionship between the 0.8m soil temperature degree of winter season and precipitation anomaly of spring season in each zones. A regression equation was established for predicting the spring precipitation. Finally, two predicted cases of 1984 and 1985 was described.更多还原