condensation nucleus

简明释义

凝结核

英英释义

例句

1.Aerosols in the atmosphere serve as condensation nuclei for cloud droplet formation.

大气中的气溶胶作为云滴形成的凝结核。

2.Smoke particles can act as condensation nuclei, aiding in the formation of clouds.

烟雾颗粒可以充当凝结核，促进云的形成。

3.In cloud formation, the presence of a condensation nucleus is essential for raindrop development.

在云的形成中，凝结核的存在对雨滴的发展至关重要。

4.Water vapor condenses around a condensation nucleus, forming droplets in the atmosphere.

水蒸气围绕一个凝结核凝结，形成大气中的水滴。

5.The size and composition of a condensation nucleus can influence the type of precipitation that occurs.

一个凝结核的大小和成分可以影响降水类型的发生。

作文

In the study of meteorology, one of the fundamental concepts is the role of a condensation nucleus. A condensation nucleus is essentially a small particle in the atmosphere that serves as a core for water vapor to condense upon. These tiny particles can be composed of various materials, including dust, salt, and even biological matter. Understanding how condensation nuclei function is crucial for comprehending cloud formation and precipitation processes.When warm air rises, it expands and cools. As the temperature drops, the capacity of the air to hold moisture decreases. Water vapor begins to condense into liquid droplets, but this process cannot occur without the presence of condensation nuclei. Without these particles, the water vapor would remain in its gaseous state, and clouds would not form. The presence of condensation nuclei lowers the energy barrier for condensation, allowing droplets to form at higher temperatures than they otherwise would.The size and composition of condensation nuclei can greatly influence weather patterns. For instance, larger particles may lead to the formation of larger droplets, which can result in heavier rainfall. Conversely, smaller condensation nuclei can create a greater number of smaller droplets, leading to more diffuse cloud formations and lighter precipitation. This variability is significant for meteorologists who seek to predict weather events accurately.Additionally, condensation nuclei play a vital role in air quality and climate change. Urban areas often have higher concentrations of pollutants that act as condensation nuclei, affecting local weather and contributing to phenomena such as smog. On a global scale, the interaction between condensation nuclei and greenhouse gases can influence cloud formation and, consequently, the Earth’s radiation balance.Furthermore, researchers are exploring the implications of condensation nuclei in climate engineering. One proposed method involves injecting artificial condensation nuclei into the atmosphere to enhance cloud reflectivity and reduce global warming. While this concept is still largely theoretical, it highlights the importance of understanding condensation nuclei in the context of climate change mitigation strategies.In conclusion, the study of condensation nuclei is essential for understanding various atmospheric processes, from cloud formation to precipitation and even climate change. By grasping the significance of these tiny particles, we can better appreciate their impact on our weather systems and the environment. As research continues to evolve, the role of condensation nuclei will undoubtedly remain a pivotal topic in both meteorology and environmental science.

在气象学研究中，一个基本概念是凝结核的作用。凝结核本质上是大气中的微小颗粒，作为水蒸气凝结的核心。这些微小颗粒可以由各种材料组成，包括尘埃、盐分甚至生物物质。理解凝结核的功能对于理解云的形成和降水过程至关重要。当温暖的空气上升时，它会膨胀并冷却。随着温度的下降，空气保持湿气的能力减少。水蒸气开始凝结成液滴，但这一过程不能在没有凝结核的情况下发生。没有这些颗粒，水蒸气将保持气态状态，云将无法形成。凝结核的存在降低了凝结的能量障碍，使液滴在比原本条件下更高的温度下形成。凝结核的大小和成分可以大大影响天气模式。例如，较大的颗粒可能导致较大液滴的形成，从而导致更强降雨。相反，较小的凝结核可以产生更多较小的液滴，导致更弥散的云层形成和较轻的降水。这种变异性对于寻求准确预测天气事件的气象学家来说是重要的。此外，凝结核在空气质量和气候变化中也发挥着重要作用。城市地区通常有更高浓度的污染物，这些污染物充当凝结核，影响当地天气并导致雾霾等现象。在全球范围内，凝结核与温室气体之间的相互作用可以影响云的形成，从而影响地球的辐射平衡。此外，研究人员正在探索凝结核在气候工程中的影响。一种提出的方法涉及向大气中注入人工凝结核，以增强云的反射率并减少全球变暖。虽然这一概念仍然主要是理论上的，但它突显了在气候变化缓解策略背景下理解凝结核的重要性。总之，研究凝结核对于理解各种大气过程至关重要，从云的形成到降水甚至气候变化。通过掌握这些微小颗粒的重要性，我们可以更好地欣赏它们对天气系统和环境的影响。随着研究的不断发展，凝结核的作用无疑将继续成为气象学和环境科学中的一个关键主题。