ash cloud

简明释义

火山灰云;

英英释义

例句

1.The airplane had to reroute due to the large ash cloud 火山灰云 from the nearby volcano.

由于附近火山喷发产生的大量火山灰云，飞机不得不改道。

2.Scientists are monitoring the ash cloud 火山灰云 for any signs of volcanic activity.

科学家们正在监测火山灰云以寻找任何火山活动的迹象。

3.The ash cloud 火山灰云 disrupted air travel across several countries.

这股火山灰云扰乱了多个国家的航空旅行。

4.Residents were advised to stay indoors to avoid inhaling the ash cloud 火山灰云 that spread across the city.

居民被建议待在室内，以避免吸入弥漫在城市的火山灰云。

5.The ash cloud 火山灰云 reached heights of over 30,000 feet.

这股火山灰云达到了超过30,000英尺的高度。

作文

The phenomenon of an ash cloud is often associated with volcanic eruptions, where the explosive force of a volcano ejects ash and other volcanic materials into the atmosphere. This ash cloud can travel vast distances, affecting air travel, weather patterns, and even human health. Understanding the implications of an ash cloud is crucial for both scientists and the general public, especially in regions prone to volcanic activity. When a volcano erupts, it releases not only lava but also a significant amount of ash, which is made up of tiny fragments of rock and volcanic glass. These particles can be propelled high into the atmosphere, creating a dense ash cloud that can rise several kilometers above the Earth's surface. The height and density of this cloud depend on various factors, including the type of eruption and the composition of the magma. One of the most notable impacts of an ash cloud is on aviation. Ash can severely damage aircraft engines, leading to dangerous situations for flights. For instance, during the 2010 eruption of Eyjafjallajökull in Iceland, a massive ash cloud disrupted air travel across Europe for several weeks. Airports were closed, and thousands of flights were canceled, highlighting how a natural disaster can have widespread economic implications. Moreover, the presence of an ash cloud can lead to poor air quality and health issues for people living nearby. Inhaling volcanic ash can cause respiratory problems and exacerbate pre-existing conditions such as asthma. Therefore, it is essential for local authorities to monitor volcanic activity and issue warnings when an ash cloud is expected to affect populated areas. In addition to its immediate effects, an ash cloud can also influence climate patterns. The particles released into the atmosphere can reflect sunlight, leading to temporary cooling in the affected regions. This phenomenon was observed after the eruption of Mount Pinatubo in 1991, which resulted in a global temperature drop for several years. Scientists continue to study the long-term effects of ash clouds on climate change and weather systems. In conclusion, the understanding of ash clouds is vital for mitigating their impacts on society. As populations grow and urbanize, the potential risks associated with volcanic eruptions and their ash clouds become more pronounced. Continuous research and monitoring are necessary to predict these events accurately and to protect lives and infrastructure. By raising awareness about the dangers of ash clouds, we can better prepare for future volcanic activity and minimize its disruptive effects on our daily lives.

“火山灰云”这一现象通常与火山喷发有关，火山的爆炸力将灰烬和其他火山材料喷射到大气中。这种“火山灰云”可以传播很远，影响航空旅行、天气模式甚至人类健康。理解“火山灰云”的影响对于科学家和公众都是至关重要的，特别是在易发生火山活动的地区。当火山喷发时，它不仅释放熔岩，还会释放大量的灰烬，这些灰烬由岩石和火山玻璃的微小碎片组成。这些颗粒可以被推动到高空，形成一个密集的“火山灰云”，其高度可以达到地球表面几公里以上。这个云的高度和密度取决于多种因素，包括喷发类型和岩浆成分。“火山灰云”对航空业的影响尤为显著。灰烬可以严重损坏飞机发动机，导致飞行出现危险情况。例如，在2010年冰岛埃亚菲亚德拉火山喷发期间，一股巨大的“火山灰云”使欧洲的航空旅行中断了数周。机场关闭，数千个航班被取消，突显了自然灾害可能带来的广泛经济影响。此外，“火山灰云”的存在还可能导致空气质量下降和附近居民的健康问题。吸入火山灰可能引起呼吸问题，并加重哮喘等既往病症。因此，当预计“火山灰云”将影响人口稠密地区时，当地政府必须监测火山活动并发布警告。除了直接影响外，“火山灰云”还可能影响气候模式。释放到大气中的颗粒可以反射阳光，导致受影响地区的短期降温。这一现象在1991年皮纳图博火山喷发后得到了验证，全球气温在几年内下降。科学家们继续研究“火山灰云”对气候变化和天气系统的长期影响。总之，理解“火山灰云”对于减轻其对社会影响至关重要。随着人口增长和城市化，与火山喷发及其“火山灰云”相关的潜在风险变得更加明显。持续的研究和监测对于准确预测这些事件以及保护生命和基础设施是必要的。通过提高人们对“火山灰云”危险的认识，我们可以更好地为未来的火山活动做好准备，最大限度地减少其对我们日常生活的干扰。