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研究局地风的日变化,是了解一地天气气候特征的重要点之一,而且,可进一步了解一地散度和垂直运动的日变化,这对大尺度热量和水汽收支分析也是重要的,国外曾有很多人研究过对流层中风的日变化,然而,由于资料限制,对于风的日变化,国内的工作还比较少。本文利用日本的多年高空观测资料,调查东海琉球附近海域(选取47909、47936和47945站构成的三角形区域)风的日变化,并分析该区域的水平散度、垂直运动和动能收支在冬夏季节(二月代表冬季,八月代表夏季)里的日变化,计算的三角形区域,其面积约为4×10~1(km)~2
The diurnal variation of ground-based winds is one of the most important points for understanding the weather and climate characteristics of a region. Furthermore, diurnal variations in diurnal and vertical movements can be further understood, which is also important for large-scale heat and water vapor budget analysis Many people abroad have studied the diurnal variations of the tropospheric stroke. However, due to data limitations, the daily work on the wind is still relatively small. In this paper, the daily variation of the wind in the sea near Ryukyu in the East China Sea (triangle area consisting of 47909, 47936 and 47945 stations) is investigated by using the data of many years in Japan at high altitude. The horizontal divergence, vertical movement and kinetic energy budget of the area are analyzed in winter and summer (February in winter, August in summer), the calculated area of the triangle is about 4 × 10 ~ 1 (km) ~ 2