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南亚-东亚是世界著名的季风气候区。我国东部地区不仅受到西南季风的影响,还受到东南季风的影响,这两支来自海洋上的季风气流,将海上异常潮湿的空气源源不断地向大陆输送。因此这两支季风活动与我国东部的降水关系甚为密切。近年来,人们对西南季风的研究较多,亦较深入,但对东南季风的研究较少,本文试图探讨东南季风与我国东部降水的关系。首先普查十年历史天气图(1970年—1980年,缺1978年),初步弄清影响我国东部的东南季风始末以及各类东南季风的形势特点和天气,并对1977年7月25日—27日东南季风区物理量作诊断分析,来论证东南季风的结构和对降水的影响。
South Asia - East Asia is a world famous monsoon climate zone. The eastern region of our country is affected not only by the southwest monsoon but also by the southeast monsoon. Both of these monsoon currents from the ocean transport the anomalously moist air at sea to the mainland. Therefore, the relationship between the two monsoon activities and the precipitation in eastern China is very close. In recent years, there are more and more in-depth researches on the southwest monsoon, but few studies on the southeast monsoon. This paper attempts to explore the relationship between the southeast monsoon and precipitation in the eastern part of China. First of all, the ten-year historical weather map (1970-1980, 1978) is censored. The situation and weather of the southeast monsoon and various types of southeastern monsoons affecting the eastern part of our country are tentatively identified. On July 25, 1977 -27 The daily southeaster monsoon physical quantities are used for diagnostic analysis to demonstrate the structure of the southeast monsoon and the impact on precipitation.