barometric law

简明释义

气压定律;

英英释义

例句

1.The scientist explained that the barometric law 气压法则 helps predict weather changes based on atmospheric pressure.

科学家解释说，气压法则 barometric law 有助于根据大气压力预测天气变化。

2.Understanding the barometric law 气压法则 is crucial for meteorologists when forecasting storms.

理解气压法则 barometric law 对气象学家在预测风暴时至关重要。

3.During our hike, we used the barometric law 气压法则 to estimate how high we had climbed.

在我们的徒步旅行中，我们使用气压法则 barometric law 来估算我们爬升的高度。

4.The barometric law 气压法则 indicates that as altitude increases, atmospheric pressure decreases.

根据气压法则 barometric law，随着海拔的增加，大气压力会降低。

5.In aviation, pilots rely on the barometric law 气压法则 to gauge altitude during flight.

在航空领域，飞行员依赖气压法则 barometric law 来测量飞行中的高度。

作文

The concept of the barometric law is fundamental in understanding how atmospheric pressure changes with altitude. This principle states that the pressure of a gas decreases as the altitude increases, which can be observed when climbing a mountain or flying in an airplane. As we ascend, the weight of the air above us diminishes, leading to a drop in pressure. This phenomenon is not only crucial for meteorology but also has practical applications in various fields such as aviation and engineering.To comprehend the barometric law, one must first grasp the nature of gases and the atmosphere. The atmosphere is a mixture of gases that surrounds the Earth, and it is held in place by gravity. At sea level, the pressure exerted by the atmosphere is approximately 1013.25 hPa (hectopascals), which is considered standard atmospheric pressure. As we move higher into the atmosphere, the density of air decreases, resulting in lower pressure. This relationship is mathematically described by the barometric law, which can be expressed through the equation: P = P0 * exp(-Mgh/RT), where P is the pressure at height h, P0 is the pressure at sea level, M is the molar mass of the air, g is the acceleration due to gravity, R is the universal gas constant, and T is the temperature in Kelvin.In practical terms, the barometric law explains why weather patterns change with altitude. For instance, in mountainous regions, the air pressure is significantly lower than in valleys, which can lead to different weather conditions. Meteorologists utilize this knowledge to predict weather changes, as areas of low pressure are often associated with storms and precipitation, while high-pressure areas typically indicate clear skies.Moreover, understanding the barometric law is essential for pilots. Aircraft are designed to operate efficiently at various altitudes, and knowing how pressure changes with height helps pilots make informed decisions during flights. For example, as an aircraft climbs, the cockpit instruments measure the decreasing pressure, allowing pilots to adjust their altitude and speed accordingly. This understanding is vital for maintaining safety and efficiency in aviation.Additionally, the barometric law plays a role in scientific research and environmental studies. Researchers studying climate change often analyze how atmospheric pressure changes affect weather patterns and ecosystems. By applying the principles of the barometric law, scientists can model and predict how the atmosphere will respond to various factors, including greenhouse gas emissions and deforestation.In conclusion, the barometric law is a critical concept that underpins our understanding of atmospheric pressure and its implications for weather, aviation, and scientific research. Its significance extends beyond theoretical knowledge; it has real-world applications that affect our daily lives. By grasping the principles of the barometric law, we can better appreciate the complexities of our atmosphere and the factors that influence it. This understanding not only enhances our ability to predict weather but also informs our approaches to environmental conservation and climate action, making it a vital area of study in today's world.

“气压法则”这一概念在理解大气压力随高度变化的原理时至关重要。该原理指出，随着高度的增加，气体的压力会降低，这一点在爬山或乘飞机时可以观察到。当我们上升时，头顶上方空气的重量减少，导致压力下降。这一现象不仅对气象学至关重要，而且在航空和工程等多个领域具有实际应用。要理解“气压法则”，首先必须掌握气体和大气的性质。大气是环绕地球的气体混合物，由重力保持在适当的位置。在海平面上，大气施加的压力约为1013.25 hPa（百帕），被视为标准大气压力。随着我们向高处移动，空气的密度降低，导致压力降低。这种关系通过“气压法则”进行数学描述，可以用公式表示为：P = P0 * exp(-Mgh/RT)，其中P是高度h处的压力，P0是海平面上的压力，M是空气的摩尔质量，g是重力加速度，R是通用气体常数，T是开尔文温度。在实际中，“气压法则”解释了为什么天气模式会随着高度而变化。例如，在山区，空气压力显著低于山谷，这可能导致不同的天气条件。气象学家利用这一知识来预测天气变化，因为低压区域通常与风暴和降水相关，而高压区域通常表示晴朗的天空。此外，理解“气压法则”对于飞行员来说至关重要。飞机设计成能够在不同高度下高效运行，了解压力如何随高度变化有助于飞行员在飞行过程中做出明智的决策。例如，随着飞机的上升，驾驶舱仪器测量到压力的下降，使飞行员能够相应调整高度和速度。这种理解对于维护航空安全和效率至关重要。另外，“气压法则”在科学研究和环境研究中也发挥着作用。研究气候变化的研究人员经常分析大气压力变化如何影响天气模式和生态系统。通过应用“气压法则”的原理，科学家可以建模并预测大气如何响应各种因素，包括温室气体排放和森林砍伐。总之，“气压法则”是一个关键概念，它支撑着我们对大气压力及其对天气、航空和科学研究影响的理解。它的重要性超越了理论知识；它在影响我们日常生活的实际应用中发挥着作用。通过掌握“气压法则”的原理，我们可以更好地欣赏我们大气的复杂性及其影响因素。这种理解不仅增强了我们预测天气的能力，还为我们在环境保护和气候行动中的方法提供了信息，使其成为当今世界重要的研究领域。