梅雨锋的天气尺度研究综述及其天气学定义

对几十年来国内外对天气尺度梅雨锋研究结果进行了综述，众多研究成果表明梅雨锋具有多样性的特点。由于众多研究者对梅雨锋的定义存在很大的差异，因此在综合国内外不同观点的基础上，给出了梅雨锋的天气学定义，即：梅雨锋具有一条数千公里长的横贯东亚和西太平洋地区的雨带；梅雨雨带随季风的进退而进退，梅雨锋是季风气团和其他气团之间的锋面；梅雨锋区是位于夏季风北侧的相当位温强梯度带。

Review on the Synoptic Scale Meiyu Front System and Its Synoptics Definition

The progress on synoptic scale Meiyu front is summarized after 1930 s. The existed studies show that the structure of the Meiyu front is very complicated, and has a multiformity feature. Based on previous studies, the synoptics' definition of Meiyu front is given as: there exists a narrow rain band of thousands of kilometers long across East Asia and northwestern Pacific; the rain band advances and retreats closely related with the Asia monsoon, and the frontal surface is between warm monsoon air mass and the others; and the Meiyu frontal area is a band with high gradient of θse.