黄河下游冰凌的水文因素分析研究,水文界已作了不少的工作。但是,冰凌是水文、气象、地理等多方面因素的综合产物。本文侧重在气象成因方面,试从气候特征、东亚大气环流特征、天气过程及特点、环境特性的作用等方面作些分析,找出冰凌形成与气象因素之间的关系,特别注意到与所谓“C”过程之间的关系。“C”过程是指在华北地区低层回流区上方迭加 The analysis of the hydrological factors of the ice in the lower reaches of the Yellow River has done a lot of work in the hydrological community. However, ice is a combination of hydrological, meteorological and geophysical factors. In this paper, we focus on the cause of meteorology and try to make some analyzes from the aspects of climatic characteristics, the characteristics of atmospheric circulation in East Asia, the process and characteristics of the weather, the role of environmental characteristics and so on to find out the relationship between ice formation and meteorological factors. In particular, C “process of the relationship between. The ”C" process is superimposed on the lower recirculation zone in North China