溏心风暴

多地暴雨交通运输部维持强降雨三级防御响应_我的网站

杨贵妃秘史

A | 　　讯据交通运输部消息，中央气象台8月14日10时继续发布暴雨黄色预警，交通运输部维持强降雨三级防御响应。

B | 　　预计，8月14日14时至15日14时，江苏中南部、安徽南部、上海、浙江、湖北东部、江西北部和东部、福建西部和南部、广东南部和东部、海南岛东北部和西南部、台湾岛南部等地部分地区有大到暴雨，其中，江苏南部、广东南部沿海等地局地有大暴雨(100～150毫米)；上述部分地区伴有短时强降水（最大小时降雨量20～50毫米，局地可超过80毫米），局地有雷暴大风等强对流天气。　　8月14日，交通运输部点对点调度江苏省交通运输厅，要求保持高度警惕，紧盯强降雨密集地区和连续降雨高风险区域，加强调度，完善工作机制，压实各方责任，督促“响应、巡查、管控”主动防御措施落实，坚决防范遏制重特大事故发生；切实做好连续降雨防范应对工作，落实排查、巡查措施，确保力量预置、主动管控到位。　　交通运输部将根据天气预警变化，及时调整防御响应等级。版权申明：凡注有“”或电头为“”的稿件，均为独家版权所有，未经许可不得转载或镜像；授权转载必须注明来源为“”，并保留“”的电头。

Lunar soil Photo: IC
Chinese scientists have made new progress in the study of lunar soil samples returned by the Chang'e-6 mission, providing fresh evidence to the striking differences between the moon's near and far sides, which have long puzzled scientists.
Because the moon is tidally locked to Earth, its rotation period matches its orbital period, meaning the same side always faces Earth. The moon's near side features vast dark basaltic plains known as lunar maria, while its far side is dominated by bright highlands with far fewer maria, creating a striking contrast between the two sides. Why does the moon have such "two faces"?
Scientists studying the moon's early formation and evolution have long used the lunar magma ocean model as a basic framework. Under the model, the chemical and isotopic characteristics of different types of lunar magma can be explained by the mixing of different components in varying proportions after the magma ocean cooled, Guangming Daily reported on Saturday.
However, previous lunar samples were collected only from the moon's near side, while significant differences exist between the near and far sides in their topography, composition and internal structure.
Against this backdrop, the research team from Institute of Geology from Chinese Academy of Geologist Sciences studied feldspathic impact-melt rocks in lunar soil samples returned by the Chang'e-6 mission. Using China's first independently developed ion probe system, researchers conducted a comprehensive analysis to test the lunar magma ocean model and examine how large impacts reshaped reservoirs in the lunar crust and mantle.
Through high-precision analyses, the team identified key clues to the moon's evolutionary history, suggesting that the stark differences between its near and far sides may be linked to the ancient giant impact that formed the South Pole-Aitken Basin.
The study found that the massive impact continued to profoundly reshape the lunar crust and upper mantle after the lunar magma ocean had solidified, fundamentally altering the material composition of parts of the moon's far side.
The findings add to the traditional lunar magma ocean model, suggesting that the formation and preservation of the moon's crustal and mantle reservoirs may have varied significantly from region to region and cannot be fully explained by a single, uniform model of primordial magma-ocean differentiation.
The research provides new scientific evidence for understanding the differences between the moon's near and far sides, while offering fresh insights into the moon's complex evolutionary history, according to Guangming Daily.
Global Times
。。