Weather is determined by the simultaneous occurrence of several meteorological elements at a geographical locality or over broad areas of the earth. 天气是由在某一地理位置或者地球表面上广袤地区同时出现的若干气象要素的综合作用所决定的。
In order to form the more perfect weather element fields with these data, objective analysis tech nique should be used firstly. 为了得到更完善的气象要素分布场，首先应对这些常规和非常规观测资料进行客观分析。
