江西平均气温和高温日数创历史新高 未来一周高温仍持续 中新网南昌10月10日电 (朱莹)江西省气象台10日发布的消息称，今年入夏以来，全球大气环流极端异 常。6月下旬开始，受副高控制，江西省平均气温和高温日数都创历史新高。预计，未来一周该省仍以 晴热高温天气为主。 江西高温日数异常偏多。6月25日以来，该省平均气温为29.1℃，较常年同期偏高2.2℃，为1961年以来 历史同期第1高位。今年以来，江西35℃以上的平均高温日数为61天，较常年同期偏多30天。 江西降水明显偏少。今年以来，江西省平均降水量1168毫米，较常年同期偏少2.4成，为1961年以来历 史同期第6少位。6月25日以来，江西平均降水量为274毫米，较常年同期偏少4.2成。 气象干旱发展迅速。江西气象干旱今年7月上旬始于赣南；7月下旬至8月下旬干旱发展蔓延快、范围 广。目前该省东部部分地区维持重旱。 为何江西持续异常高温？据江西省气象台分析，在全球变暖的天气背景下，大气环流异常是江西超长持 续高温的直接推手，主要表现在副热带高压异常强盛、台风明显偏多，拉尼娜的滞后效应、极地涡旋的 衰减、太阳活跃周期等等也是造成该省持续高温的原因。 据了解，今 ...

Core Insights - Since July, northern China has experienced multiple rounds of heavy rainfall, with significant overlap in precipitation areas, particularly from July 23 to 29, where regions like Qinghai, Gansu, Inner Mongolia, Beijing-Tianjin-Hebei, and Northeast China faced heavy to extremely heavy rainfall [1][3] Weather Patterns - The recent heavy rainfall in northern and northwestern China is directly related to abnormal atmospheric circulation. The intensity of the western Pacific subtropical high has been stronger and positioned further north, creating favorable conditions for sustained heavy rainfall in the north [3] - The active tropical systems in the southern ocean during mid to late July have further enhanced moisture transport to northern regions, contributing to the persistent heavy rainfall [3] - Geographical features also play a significant role, as the terrain in regions like the Yinshan, Taihang, and Yanshan mountains facilitates the uplift and convergence of warm, moist air, leading to repeated heavy rainfall events in areas like Beijing and Hebei, resulting in significantly higher cumulative precipitation compared to historical averages [3]

Core Viewpoint - The extreme heat waves experienced in multiple countries in the Northern Hemisphere this summer are attributed to abnormal atmospheric circulation, occurring against the backdrop of significant greenhouse gas emissions and rising global temperatures [1] Group 1 - The summer of this year has seen record-breaking high temperatures in various countries [1] - The chief of the International User Service Center at the National Satellite Meteorological Center, Zheng Zhaojun, indicates that the extreme heat is a direct result of abnormal atmospheric circulation [1] - The phenomenon of extreme heat is occurring within the context of ongoing greenhouse gas emissions and a continuous rise in global temperatures [1]