中文摘要：

利用NCEP的CFSR0．5°再分析资料和日本东京台风中心的最佳路径集，对西北太平洋和南海海域1979-2010年间的热带气旋温湿水平非对称和垂直非均匀结构等进行了合成和对比分析。（1）热带气旋流场的非对称随着气旋增强逐渐趋于轴对称化，而外包区及外围区比湿场的非对称性逐渐增强。（2）热带气旋普遍具有“双暖心”的垂直非均匀分布结构特征；弱热带气旋的低层暖心相对较强而TY及以上强度的热带气旋高层暖心相对较强。（3r暖心”的水平范围和形态随气旋的增强而扩大并更趋于轴对称，200hPa高度场上较弱的热带气旋暖心附近为弱高压中心、较强热带气旋暖心附近为一低压中心。（4）热带气旋的“湿心”主要位于700～850hPa的低层，湿心强度随着气旋强度等级增加而增强，0．8g／kg的比湿距平范围随TC强度增强而不断向高层延伸。（5）气旋不同区域的各个层次假相当位温随气旋增强而增加，且各个强度级别的气旋不同区域增温速率均为内核区最大、外包区次之和外围区最小。

英文摘要：

Based on CFSR 0.5° reanalysis data of NCEP and best track data of Tokyo Typhoon Center, composite analysis and comparative analysis are used to study the asymmetrical structure of temperature and humidity in tropical cyclones over Western North Pacific and South China Sea during 1979-2010. The results are shown as follows. （1） With enhanced tropical cyclones, the asymmetry of the flow field tends to be symmetric about the axis gradually, but the asymmetry of the specific humidity field in the peripheral area enhances. （2） Generally, tropical cyclones have non-uniform vertical structure of “double warm-core”distribution. The warm-cores on the low-level of weak tropical cyclones and on the high level of tropical cyclones above the intensity of TY are relatively strong. （3） The horizontal scope and shape of a “warm-core” is enhanced with increasing cyclones intensity and tends to be more axisymmetric. At 200 hPa, the warm-core of a weak cyclone is with the center of a weak anticyclone while that of a strong cyclone is with the center of a weak cyclone. （4） The “wet-core” of a tropical cyclone is mainly located in the low level of about 700-850 hPa. With the cyclones intensity growing, the intensity of the wet-core is increasing and the scope of 0.8 g kg-1 anomaly specific humidity tends to expand to the high level. （5） With the cyclones enhancing, the pseudo-equivalent potential temperature on different levels in different regions of the cyclones is increasing. Besides, the largest warming rates on each intensity levels of cyclones in different regions happen in the core area, followed in turn by the outsourcing area and the peripheral area.