气象热点访谈 | 今年夏天，热不热？

Core Viewpoint - The recent weather patterns in China, characterized by high temperatures in the north and continuous rainfall in the south, are part of the seasonal climate phenomena, influenced by atmospheric circulation and long-term climate change factors [2][4]. Group 1: Northern High Temperatures - The recent high temperatures in North China are significant, with maximum temperatures exceeding 35°C in the Beijing-Tianjin-Hebei region, but they are not the highest on record [3]. - The heatwave in North China began on June 21 and is expected to persist until June 26, with localized temperatures potentially reaching around 40°C [3]. - The intensity of the current heat is greater than the average for the same period in previous years, but it is not the historical peak [3][4]. Group 2: Southern Rainfall - The southern regions, particularly the Yangtze River basin, have experienced rainfall that is over 30% above the normal levels since the onset of the rainy season on June 7 [2]. - A new round of strong rainfall is expected from June 24 to 27, affecting areas such as Sichuan, Chongqing, and parts of Hubei and Henan, although the intensity and impact will be less than previous rainfall events [5]. - The rainfall is beneficial for alleviating drought conditions in eastern Sichuan and Chongqing, but there are concerns about secondary disasters such as landslides and flooding in certain areas [5]. Group 3: Climate Change Context - The increasing frequency of extreme temperatures and heavy rainfall events in China is linked to global climate change, as highlighted by reports from the IPCC [2][4]. - The onset of high temperatures in northern regions has been occurring earlier in the summer months over the 21st century, indicating a new normal for weather patterns [4].