condensation nucleus

简明释义

凝聚核

英英释义

例句

1.Clouds form when water vapor condenses around a condensation nucleus, which is a tiny particle in the atmosphere.

云的形成是因为水蒸气在大气中的微小颗粒凝结核周围凝结。

2.In meteorology, the size of a condensation nucleus can affect the type of precipitation that falls.

在气象学中，凝结核的大小会影响降水类型。

3.Pollution can increase the number of condensation nuclei, potentially affecting weather patterns.

污染可以增加凝结核的数量，从而可能影响天气模式。

4.A condensation nucleus can be made of dust, salt, or other particles suspended in the air.

一个凝结核可以由空气中悬浮的灰尘、盐或其他颗粒组成。

5.The presence of a sufficient number of condensation nuclei is essential for cloud formation.

足够数量的凝结核的存在对于云的形成是必不可少的。

作文

The phenomenon of cloud formation is a fascinating aspect of meteorology that involves various processes in the atmosphere. One of the critical components in this process is the concept of a condensation nucleus, which plays a vital role in the development of clouds and precipitation. A condensation nucleus is a small particle, typically ranging from 0.01 to 100 micrometers in diameter, that serves as a foundation for water vapor to condense upon. Without these nuclei, water vapor would remain in its gaseous state, making it difficult for clouds to form. To understand how a condensation nucleus works, we need to delve into the basic principles of condensation. When warm, moist air rises, it expands and cools. As the temperature drops, the capacity of air to hold moisture decreases, leading to a point where the air becomes saturated. At this juncture, water vapor begins to condense into tiny droplets. However, this process requires a surface for the vapor to cling to, which is where the condensation nucleus comes into play.These nuclei can be composed of various materials, including dust, salt, pollen, and even pollution particles. They are ubiquitous in the atmosphere, and their presence is crucial for the formation of clouds. For instance, when water vapor condenses onto a condensation nucleus, it forms a droplet. As more and more vapor condenses, these droplets grow larger, eventually coalescing with others to form clouds. This transformation is essential for the water cycle, as it leads to precipitation, which replenishes our water sources.In addition to their role in cloud formation, condensation nuclei also influence weather patterns and climate. The size and composition of these particles can affect the properties of clouds, such as their reflectivity and longevity. For example, clouds formed around sea salt particles may have different characteristics than those formed around urban pollution. Understanding the behavior of condensation nuclei helps meteorologists predict weather changes and assess climate conditions.Moreover, the study of condensation nuclei is not limited to meteorology; it also has implications in environmental science and health. Airborne particles can have adverse effects on human health, and understanding their role in cloud formation can help address issues related to air quality and pollution. By reducing emissions of harmful particles, we can potentially influence the number and type of condensation nuclei present in the atmosphere, thereby affecting cloud formation and weather patterns.In conclusion, the condensation nucleus is a fundamental concept in understanding atmospheric processes. It acts as a catalyst for cloud formation and precipitation, influencing both local weather and global climate. As we continue to explore the intricacies of our atmosphere, recognizing the significance of condensation nuclei will enhance our comprehension of meteorological phenomena and environmental challenges. Through this knowledge, we can better appreciate the delicate balance of our ecosystem and work towards sustainable solutions for our planet's future.

云形成现象是气象学中一个引人入胜的方面，涉及大气中的各种过程。这个过程中的一个关键组成部分是凝结核的概念，它在云和降水的发展中起着至关重要的作用。凝结核是一个小颗粒，直径通常在0.01到100微米之间，作为水蒸气凝结的基础。如果没有这些核，水蒸气将保持在气体状态，使得云的形成变得困难。要理解凝结核的工作原理，我们需要深入探讨凝结的基本原理。当温暖潮湿的空气上升时，它会膨胀并冷却。随着温度的下降，空气保持水分的能力减少，导致空气达到饱和点。在这一时刻，水蒸气开始在微小的水滴上凝结。然而，这一过程需要一个表面供水蒸气附着，这就是凝结核的作用所在。这些核可以由多种材料组成，包括灰尘、盐、花粉甚至污染颗粒。它们在大气中普遍存在，其存在对云的形成至关重要。例如，当水蒸气在凝结核上凝结时，就形成了一个水滴。随着越来越多的水蒸气凝结，这些水滴变得更大，最终与其他水滴合并形成云。这一转变对于水循环至关重要，因为它导致降水，从而补充我们的水源。除了在云形成中的作用外，凝结核还影响天气模式和气候。这些颗粒的大小和组成可以影响云的特性，例如它们的反射率和持久性。例如，围绕海盐颗粒形成的云可能具有不同于城市污染物形成的云的特征。理解凝结核的行为有助于气象学家预测天气变化和评估气候条件。此外，凝结核的研究不仅限于气象学；它还对环境科学和健康产生影响。空气中悬浮的颗粒可能对人类健康产生不利影响，了解它们在云形成中的作用可以帮助解决与空气质量和污染相关的问题。通过减少有害颗粒的排放，我们可以潜在地影响大气中凝结核的数量和类型，从而影响云的形成和天气模式。总之，凝结核是理解大气过程的基本概念。它作为云形成和降水的催化剂，影响着局部天气和全球气候。随着我们继续探索大气的复杂性，认识到凝结核的重要性将增强我们对气象现象和环境挑战的理解。通过这些知识，我们可以更好地欣赏生态系统的微妙平衡，并朝着可持续解决方案努力，以应对我们星球的未来。