中国和日本梅雨锋区（个例）结构的比较

通过１９８２年梅雨期的个例分析，研究和比较了中国和日本梅雨我的结构。分析表明：１．梅雨锋区系统对流层上部宽广的斜压区和对流层低层较狭窄的弱斜压区共同组成；２．在两个个例中，中国剖面上锋区均呈“椅”型结构。日本剖面上，６月呈均匀倾斜结构，７月略呈“椅型”，涡度场上中国剖面为相当正压结构，日本剖面为斜压结构；３．梅雨锋区系统可民是均匀斜压区在不均匀和加热情况下结构改变结果；４．中国大陆雨区高层大量潜热

COMPARISON OF CASE STUDY MEIYU AND BAIU FRONTAL ZONE STRUCTURES

Case studies are undertaken of summer Meiyu (Chinese) and Baiu (Japanese) frontal structures, with the results as follows: 1) the frontal system consists of an upper tropospheric broad baroclinic zone and a lower narrower and weak analog; 2) on the cross sections (two for each), the Meiyu fronts are chair shaped with an equivalent barotropical structure in the vorcivorticity field; the June Baiu front is evenly inclined and the July one chair shaped, with a baroclinic vorticity structure; 3) these systems can be viewed as from inhomogeneously heating a uniform baroclinic zone; 4) vast quantities of latent heat released at high levels over the rainbelt in China mainland in connection with evaporatice cooling around the rainband and ground heating on the north side of the rainfall help generate the chair shaped frontal zone and equivalent barotropic structure.