副高和南亚高压对2013年夏季浙江省异常高温的影响

通过分析副高和南亚高压的特征，研究其对2013年浙江省夏季异常高温的影响，结果表明：2013年夏季浙江省出现60余年最严重的高温少雨天气，7~8月全省平均气温、高温日数、极端最高气温均破1951年以来的最高纪录；梅雨期偏短，台风影响程度小，是引发高温的背景条件. 在高温发生的6个阶段中，第4阶段高温持续时间长且强度最大. 2013年夏季南亚高压和副高表现出明显的相向而行特征，偏强偏西的副高和偏强偏东的南亚高压在高低层叠加，控制浙江一带高低层，受下沉气流影响，对流活动受到抑制. 同时发现，副高中心强度和高温强度之间也存在对应关系.

The influence of subtropical high and the South Asia high on abnormal high temperature in Zhejiang Province in the summer of 2013

By analyzing the characteristics of subtropical high and South Asia high, and studying their impact on the abnormal high temperature, we find that it is the most serious high temperature and less rain weather appeared in Zhejiang Province in 2013 summer during the past 60 years. The highest records in July and August of averaged temperature, high temperature days and extreme maximum temperature since 1951 are broken. The short Meiyu period and low effect typhoon provide an appropriate background for this high temperature. Among all the six stages of high temperature, the fourth stage is the longest and its intensity is the strongest. In the summer of 2013,the South Asia high and the subtropical high show an obvious characteristic of the opposite directions, the stronger westward subtropical high and stronger eastward South Asia high control low and high altitude of Zhejiang in summer. Affected by the sinking airflow, the convective activities are inhibited. At the same time, there is a correspondence between the strength of the subtropical high center and high temperature.