air parcel

简明释义

气块;

英英释义

例句

1.Meteorologists use models to simulate how an air parcel 气团 behaves under different conditions.

气象学家使用模型来模拟一个air parcel 气团在不同条件下的行为。

2.When studying weather patterns, scientists often track the movement of an air parcel 气团 to predict storms.

在研究天气模式时，科学家们通常跟踪一个air parcel 气团的运动以预测暴风雨。

3.The rise of an air parcel 气团 can lead to cloud formation and precipitation.

一个air parcel 气团的上升可能导致云的形成和降水。

4.An air parcel 气团 can be defined as a volume of air with uniform properties.

一个air parcel 气团可以定义为一个具有均匀特性的空气体积。

5.The meteorologist explained how an air parcel 气团 rises and cools in the atmosphere.

气象学家解释了一个air parcel 气团是如何在大气中上升和冷却的。

作文

In the study of meteorology, the concept of an air parcel plays a crucial role in understanding atmospheric processes. An air parcel is essentially a hypothetical volume of air that is used to simplify the analysis of the atmosphere's behavior. By treating this volume of air as a single entity, meteorologists can study how it interacts with its surroundings, including temperature, pressure, and humidity changes.When an air parcel rises in the atmosphere, it experiences a decrease in pressure. This causes the air parcel to expand, leading to a drop in temperature according to the adiabatic process. The expansion happens because as the air parcel ascends, it moves into regions of lower atmospheric pressure. This principle is fundamental in explaining phenomena such as cloud formation and precipitation. As the air parcel cools, moisture within it may condense, forming clouds and eventually leading to rain if enough condensation occurs.Moreover, the movement of an air parcel is influenced by various forces, including buoyancy, which is the upward force experienced by the air parcel when it is warmer than the surrounding air. When an air parcel is heated, it becomes less dense than the cooler air around it, causing it to rise. This process is essential for understanding convection currents, which are responsible for weather patterns and storm development.The concept of an air parcel also helps in distinguishing between stable and unstable atmospheric conditions. In a stable atmosphere, an air parcel that is forced to rise will eventually return to its original position because it is cooler and denser than the surrounding air. Conversely, in an unstable atmosphere, an air parcel will continue to rise if it remains warmer than its surroundings, potentially leading to severe weather events like thunderstorms.In addition to its theoretical implications, the idea of an air parcel has practical applications in weather forecasting. Meteorologists use computer models that simulate the behavior of air parcels to predict how weather systems will evolve over time. By analyzing how these air parcels move and change, forecasters can make informed predictions about temperature changes, precipitation, and wind patterns.Understanding the dynamics of an air parcel is vital for anyone interested in meteorology or atmospheric sciences. It provides a foundational framework for analyzing complex weather phenomena and contributes to our ability to predict and respond to weather-related challenges. Through the study of air parcels, we gain insights into the intricate workings of our atmosphere, ultimately enhancing our understanding of climate change and its impacts on the planet.In conclusion, the significance of an air parcel in meteorology cannot be overstated. It serves as a key element in the study of atmospheric processes, helping us to comprehend how air behaves under various conditions. By examining the properties and movements of air parcels, we can better understand weather patterns and improve our forecasting capabilities, thus equipping ourselves to deal with the ever-changing nature of our atmosphere.

在气象学的研究中，空气包裹的概念在理解大气过程方面发挥着至关重要的作用。空气包裹本质上是一个假设的空气体积，用于简化对大气行为的分析。通过将这段空气视为一个整体，气象学家可以研究它如何与周围环境相互作用，包括温度、压力和湿度的变化。当空气包裹在大气中上升时，它会经历压力的降低。这导致空气包裹膨胀，按照绝热过程，温度下降。膨胀发生的原因是，当空气包裹上升时，它进入较低的大气压力区域。这个原理对于解释云的形成和降水现象至关重要。当空气包裹冷却时，内部的水分可能会凝结，形成云，并最终导致降雨，如果发生足够的凝结。此外，空气包裹的运动受到多种力量的影响，包括浮力，即空气包裹在比周围空气更温暖时所经历的向上的力量。当空气包裹被加热时，它变得比周围的冷空气更轻，从而导致它上升。这个过程对于理解对流电流至关重要，这些电流负责天气模式和风暴的发展。空气包裹的概念还有助于区分稳定和不稳定的大气条件。在稳定的大气中，被强迫上升的空气包裹最终会返回到其原来的位置，因为它比周围空气更冷、更密集。相反，在不稳定的大气中，如果空气包裹仍然比周围空气更温暖，它将继续上升，可能导致严重的天气事件，如雷暴。除了理论意义外，空气包裹的概念在天气预报中也有实际应用。气象学家使用模拟空气包裹行为的计算机模型，以预测天气系统将如何随时间演变。通过分析这些空气包裹的运动和变化，预报员能够对温度变化、降水和风模式做出明智的预测。理解空气包裹的动态对于任何对气象学或大气科学感兴趣的人来说都是至关重要的。它提供了分析复杂天气现象的基础框架，并有助于我们预测和应对与天气相关的挑战。通过对空气包裹的研究，我们获得了对大气复杂运作的深入了解，最终增强了我们对气候变化及其对地球影响的理解。总之，空气包裹在气象学中的重要性不容小觑。它作为研究大气过程的关键元素，帮助我们理解空气在各种条件下的行为。通过检查空气包裹的特性和运动，我们可以更好地理解天气模式并改善我们的预报能力，从而使我们能够应对不断变化的大气特性。