air parcel

简明释义

气块;航空包裹

英英释义

例句

1.During storms, a warm air parcel 气团 can lead to severe weather conditions.

在暴风雨期间，一个温暖的air parcel 气团可能导致严重的天气状况。

2.As the air parcel 气团 rises, it cools and expands.

当这个air parcel 气团上升时，它会冷却并膨胀。

3.The meteorologist tracked the movement of the air parcel 气团 as it moved across the ocean.

气象学家追踪了这个air parcel 气团在海洋上空的运动。

4.The stability of the atmosphere can be determined by examining an air parcel 气团 at different altitudes.

通过检查不同高度的air parcel 气团，可以确定大气的稳定性。

5.The concept of an air parcel 气团 is crucial for understanding convection currents.

理解对流电流的概念时，air parcel 气团的概念至关重要。

作文

In the study of meteorology, the term air parcel refers to a hypothetical volume of air that is used to analyze atmospheric processes. Understanding the behavior of an air parcel is crucial for predicting weather patterns and understanding climate dynamics. An air parcel can be thought of as a small bubble of air that moves through the atmosphere, carrying with it various properties such as temperature, humidity, and pressure. When scientists study an air parcel, they often focus on how these properties change as the air parcel rises or descends in the atmosphere.One of the key principles related to an air parcel is the concept of buoyancy. A rising air parcel is generally warmer than the surrounding air, which allows it to ascend. This phenomenon is due to the fact that warm air is less dense than cold air. As an air parcel rises, it expands due to the decrease in atmospheric pressure at higher altitudes. This expansion causes the air parcel to cool, which can lead to condensation if the air parcel contains enough moisture. When condensation occurs, clouds form, and this process is fundamental to the development of weather systems.Moreover, the movement of an air parcel is influenced by various factors including wind patterns, temperature gradients, and geographical features. For instance, when an air parcel encounters a mountain range, it may be forced to rise, leading to orographic lifting. This process can result in increased precipitation on the windward side of the mountains while creating dry conditions on the leeward side, known as a rain shadow effect.Additionally, the study of air parcels is essential in understanding phenomena such as thunderstorms and hurricanes. In a thunderstorm, warm, moist air parcels rise rapidly, creating strong updrafts. These updrafts can lead to severe weather conditions, including heavy rain, hail, and lightning. Similarly, in tropical regions, warm air parcels over the ocean can contribute to the formation of hurricanes, as these storms are fueled by the heat and moisture from the ocean surface.In conclusion, the concept of an air parcel is a vital component of meteorological studies. By analyzing how air parcels behave in the atmosphere, scientists can gain insights into weather patterns, climate change, and various atmospheric phenomena. Understanding the dynamics of an air parcel not only helps in forecasting weather but also enhances our knowledge of the complex interactions within the Earth's atmosphere. As we continue to study and monitor these air parcels, we can better prepare for the impacts of weather events and climate variability on our daily lives.

在气象学研究中，术语空气团指的是一个假设的空气体积，用于分析大气过程。理解空气团的行为对于预测天气模式和理解气候动态至关重要。空气团可以被视为一个小气泡，它在大气中移动，携带着温度、湿度和压力等各种属性。当科学家研究空气团时，他们通常关注这些属性在空气团上升或下降时如何变化。与空气团相关的一个关键原则是浮力的概念。上升的空气团通常比周围的空气更温暖，这使得它能够上升。这一现象是因为温暖的空气比冷空气密度小。当空气团上升时，由于高空大气压力的降低，它会膨胀。这种膨胀导致空气团冷却，如果空气团中含有足够的水分，就可能导致凝结。当凝结发生时，云层形成，而这一过程对于天气系统的发展至关重要。此外，空气团的运动受到风向、温度梯度和地理特征等多种因素的影响。例如，当空气团遇到山脉时，可能会被迫上升，导致地形抬升。这个过程可以导致山脉迎风面降水增加，而在背风面则形成干燥的条件，这被称为雨影效应。此外，空气团的研究对于理解雷暴和飓风等现象也至关重要。在雷暴中，温暖潮湿的空气团迅速上升，形成强烈的上升气流。这些上升气流可能导致严重的天气状况，包括大雨、冰雹和闪电。同样，在热带地区，海洋上的温暖空气团可以促成飓风的形成，因为这些风暴是由海面散发的热量和湿气提供动力的。总之，空气团的概念是气象研究的重要组成部分。通过分析空气团在大气中的行为，科学家可以获得有关天气模式、气候变化和各种大气现象的见解。理解空气团的动态不仅有助于天气预报，还增强了我们对地球大气中复杂相互作用的认识。随着我们继续研究和监测这些空气团，我们可以更好地为天气事件和气候变化对日常生活的影响做好准备。