使用喀什气象站1970~2009年的夏季平均气温、最高气温、最低气温等40年长序列气象资料，应用Excel软件所提供的统计工具，分析了喀什近40年来夏季温度的统计特征及变化规律。并利用2011年8月1日至10日Ncep 1？*1？再分析资料、结合地面及各高度层实况资料对本次高温过程的成因进行了分析，得出喀什市近40年夏季高温日，呈缓慢减少趋势，其中70年代是夏季高温高发时期，而90年代是高温发生偏少时期；7月是喀什市夏季高温发生偏多时期，而6、8月夏季高温发生相对较少；南亚高压中心北抬和北非副高纬向东扩，是造成此次高温过程的重要原因；此次高温过程，大气由地面热低压逐渐发展为高空高压控制，各层系统配合较一致，在这种高底层配置下，喀什市容易出现高温天气等结论。
Using the 40-year series meteorological data of summer mean temperature, maximum temperature and minimum temperature from 1970 to 2009 in Kashgar meteorological station, and using the statistical tools provided by Excel software, the statistical characteristics and variation rules of summer temperature in Kashgar in recent 40 years are analyzed. Based on the NCEP 1？ * 1？ reanalysis data from August 1 to 10, 2011, combined with the actual data of the ground and each altitude layer, the causes of the high temperature process are analyzed. The results show that the summer high temperature days in Kashgar City in recent 40 years show a slow decreasing trend, in which the summer high temperature occurred in the 1970 s, and the high temperature occurred less in the 1990 s; the summer high temperature occurred more in July, while the summer high temperature occurred less in June and August. The northward uplift of the South Asia high center and the eastward expansion of the sub high latitude in North Africa are the important reasons for the high temperature process. In the process of high temperature, the atmosphere is gradually controlled from the ground thermal low pressure to the high-altitude high pressure, and the coordination of each layer system is relatively consistent. In this configuration of high and low layers, Kashgar City is prone to high temperature weather.
