freezing nucleus

简明释义

冻结核

英英释义

例句

1.The presence of a freezing nucleus can lower the temperature at which water freezes.

存在冻结核可以降低水的冰点。

2.Researchers found that different materials can serve as a freezing nucleus for ice.

研究人员发现，不同的材料可以作为冰的冻结核。

3.The freezing nucleus is essential for snowflake development.

冻结核对雪花的发展至关重要。

4.In winter, ice crystals form around a freezing nucleus in the atmosphere.

在冬季，冰晶围绕大气中的冻结核形成。

5.The scientist was studying the role of the freezing nucleus in cloud formation.

科学家正在研究冻结核在云形成中的作用。

作文

The concept of a freezing nucleus is essential in understanding the process of ice formation in clouds. A freezing nucleus refers to a small particle, such as dust or salt, that provides a surface for water vapor to condense and freeze. Without these tiny nuclei, water vapor would remain in a gaseous state even at temperatures below freezing. This phenomenon is crucial for meteorology and climate science, as it explains how snowflakes and ice crystals form during cold weather. When the temperature drops, water vapor in the atmosphere begins to cool. If there are sufficient freezing nuclei present, the vapor will condense onto these particles, forming tiny droplets. As these droplets collide with each other and grow larger, they may eventually freeze into ice crystals. The presence of freezing nuclei is what allows this process to occur efficiently, leading to the formation of precipitation, such as snow or sleet.In addition to natural freezing nuclei, human activities also contribute to the presence of these particles in the atmosphere. For instance, pollution can introduce various aerosols that act as freezing nuclei, potentially influencing weather patterns and climate change. Studies have shown that increased levels of certain pollutants can lead to changes in cloud formation and precipitation, highlighting the interconnectedness of human activity and natural processes.Understanding the role of freezing nuclei is not only important for meteorologists but also for those involved in climate research. By studying how these nuclei interact with water vapor and influence weather patterns, scientists can better predict snowfall amounts and the potential for winter storms. This knowledge is vital for agriculture, transportation, and disaster preparedness, as accurate weather forecasts can help communities prepare for severe weather conditions.Furthermore, the study of freezing nuclei extends beyond just precipitation. It also plays a role in understanding phenomena like frost formation on surfaces. When temperatures drop, moisture in the air can deposit onto surfaces as frost, especially if there are freezing nuclei present on those surfaces. This can have significant implications for agriculture, as frost can damage crops and affect yields.In conclusion, the term freezing nucleus refers to critical particles that facilitate the freezing process in the atmosphere. They play a vital role in cloud formation, precipitation, and even frost development. As our understanding of climate science advances, the importance of freezing nuclei becomes increasingly clear. By recognizing their significance, we can better appreciate the complex interactions within our atmosphere and the impact of both natural and anthropogenic factors on weather patterns and climate change.

‘freezing nucleus’（冰冻核）的概念对于理解云中冰的形成过程至关重要。‘freezing nucleus’指的是一种小颗粒，如灰尘或盐，为水蒸气凝结和冻结提供了表面。如果没有这些微小的核，水蒸气即使在低于冰点的温度下也会保持气态。这种现象对于气象学和气候科学至关重要，因为它解释了如何在寒冷天气中形成雪花和冰晶。当温度下降时，空气中的水蒸气开始冷却。如果存在足够的‘freezing nuclei’，水蒸气就会凝结到这些颗粒上，形成微小的水滴。当这些水滴相互碰撞并变得更大时，它们最终可能会冻结成冰晶。‘freezing nuclei’的存在使这一过程能够高效进行，从而导致降水的形成，如雪或雨夹雪。除了自然‘freezing nuclei’外，人类活动也会导致这些颗粒在大气中的存在。例如，污染可以引入各种气溶胶，这些气溶胶可以作为‘freezing nuclei’，可能影响天气模式和气候变化。研究表明，某些污染物水平的增加可能会导致云形成和降水的变化，突显出人类活动与自然过程之间的相互联系。理解‘freezing nuclei’的作用不仅对气象学家重要，对气候研究人员也是如此。通过研究这些核如何与水蒸气相互作用并影响天气模式，科学家们可以更好地预测降雪量和冬季风暴的潜力。这些知识对于农业、交通和灾害准备至关重要，因为准确的天气预报可以帮助社区为恶劣天气条件做好准备。此外，‘freezing nuclei’的研究不仅限于降水。它还在理解表面霜冻形成现象中发挥作用。当温度下降时，空气中的水分可以在表面沉积为霜，尤其是在这些表面上存在‘freezing nuclei’时。这对农业有重大影响，因为霜冻可能会损害作物并影响产量。总之，‘freezing nucleus’（冰冻核）一词指的是促进大气中冻结过程的重要颗粒。它们在云形成、降水甚至霜冻发展中起着至关重要的作用。随着我们对气候科学的理解不断加深，‘freezing nuclei’的重要性愈发明显。通过认识到它们的意义，我们可以更好地欣赏大气中复杂的相互作用以及自然因素和人为因素对天气模式和气候变化的影响。