中文摘要：

在这篇论文，关于亚洲热带夏天季风(ATSM ) 的发作的相对系统的 climatological 研究被执行。基于 ATSM 发作， ATSM 最新被献殷勤的全部的然后 ATSM 第一爆发在热带东方印度洋和中间、南部的印度支那半岛上的看法的一个统一索引进一步被记录，它在 第26 五(关于5月10日)，然后在在 第28 五的华南海( SCS )上。看起来，在二个区域上的 ATSM 发作属于一样的季风系统的不同阶段。然后， ATSM 的发作机制被全面分析进一步在陆地海上调查热力学的对比， intraseasonal 摆动，等等并且影响 ATSM 发作的几个关键因素被提出。把结果基于这些，大气的发行量的 ATSM 第一爆发在热带东方印度洋，印度支那半岛，和 SCS 上的图解的地图也是的可能的 climatological 介绍的、也就是季节的进化是季风发作的背景；改进并且向北方在印度支那半岛和它的附近的区域上的传送对流，理智的加热并且潜伏的加热进展，在东方西藏的高原上的印度缅甸马槽，和西的温暖的移流的戏剧的加深是夏天季风发作的主要驱动力，它做了区域和上升运动开发的在这上第一反向的温度的南方的坡度。然后，热带季风和降水很快发展了并且提高。30-60-day 和 10-20-day 的阶段锁低频率摆动从不同来源发源是为夏天季风发作的另一个被触发的因素。它只是最早导致了 ATSM 的这些因素的普通效果在这个区域上的发作。

英文摘要：

In this paper, a relatively systematic climatological research on the onset of the Asian tropical summer monsoon （ATSM） was carried out. Based on a unified index of the ATSM onset, the advance of the whole ATSM was newly made and then the view that the ATSM firstly breaks out over the tropical eastern Indian Ocean and the middle and southern Indo-China Peninsula was further documented, which was in the 26th pentad （about May 10）, then over the South China Sea （SCS） in the 28th pentad. It seems that the ATSM onset over the two regions belongs to the different stages of the same monsoon system. Then, the onset mechanism of ATSM was further investigated by the comprehensive analysis on the land-sea thermodynamic contrast, intraseasonal oscillation, and so on, and the several key factors which influence the ATSM onset were put forward. Based on these results, a possible climatological schematic map that the ATSM firstly breaks out over the tropical eastern Indian Ocean, the Indo-China Peninsula, and the SCS was also presented, namely seasonal evolution of the atmospheric circulation was the background of the monsoon onset; the enhancement and northward advance of the convections, the sensible heating and latent heating over the Indo-China Peninsula and its neighboring areas, the dramatic deepening of the India-Burma trough, and the westerly warm advection over the eastern Tibetan Plateau were the major driving forces of the summer monsoon onset, which made the meridional gradient of the temperature firstly reverse over this region and ascending motion develop. Then the tropical monsoon and precipitation rapidly developed and enhanced. The phase-lock of the 30-60-day and 10-20-day low frequency oscillations originated from different sources was another triggering factor for the summer monsoon onset. It was just the common effect of these factors that induced the ATSM earliest onset over this region.