atmospheric attenuation

简明释义

大气衰减

英英释义

例句

1.The signal strength of the radio waves decreased due to atmospheric attenuation.

由于大气衰减，无线电波的信号强度下降。

2.Weather conditions can greatly influence atmospheric attenuation in optical communications.

天气状况会极大影响光通信中的大气衰减。

3.The atmospheric attenuation of sound waves can be significant in urban areas.

在城市地区，声音波的大气衰减可能是显著的。

4.During our experiment, we measured the effects of atmospheric attenuation on the laser beam.

在我们的实验中，我们测量了激光束上大气衰减的影响。

5.Engineers must consider atmospheric attenuation when designing satellite communication systems.

工程师在设计卫星通信系统时必须考虑大气衰减。

作文

In the realm of physics and environmental science, understanding the concept of atmospheric attenuation is crucial for various applications, including telecommunications, meteorology, and environmental monitoring. Atmospheric attenuation refers to the reduction in intensity of electromagnetic waves as they pass through the Earth's atmosphere. This phenomenon occurs due to several factors, including scattering, absorption, and reflection by atmospheric particles such as gases, water vapor, and aerosols.To grasp the significance of atmospheric attenuation, one must first consider its impact on communication technologies. For instance, when radio waves are transmitted from a satellite to a receiver on Earth, the signals can weaken significantly due to atmospheric attenuation. This weakening can lead to poor signal quality, resulting in interruptions or loss of communication. Engineers and scientists must account for atmospheric attenuation when designing systems that rely on radio frequency transmissions. They often use models that predict how much signal loss will occur based on atmospheric conditions, ensuring that the communication remains effective.Moreover, atmospheric attenuation plays a vital role in meteorology. Weather forecasting relies heavily on data collected from satellites, which observe the Earth's surface and atmosphere. However, the accuracy of this data can be compromised by atmospheric attenuation. For example, when satellites capture images of cloud cover or monitor temperature variations, the signals may be affected by moisture in the air or other atmospheric elements. Meteorologists must understand the extent of atmospheric attenuation to interpret the data correctly and provide reliable forecasts.In addition to telecommunications and meteorology, atmospheric attenuation is also significant in environmental monitoring. Scientists studying air quality and pollution levels must consider how atmospheric attenuation affects their measurements. Pollutants can scatter and absorb light and other electromagnetic waves, leading to discrepancies in data collection. Understanding atmospheric attenuation helps researchers develop more accurate models of pollution dispersion and its effects on health and the environment.Furthermore, atmospheric attenuation varies with frequency. Higher frequency signals, such as those used in microwave communications, tend to experience greater attenuation than lower frequency signals. This characteristic has implications for the design of communication systems, especially in urban areas where buildings and other structures can further contribute to signal degradation. Engineers must carefully select frequencies that minimize the impact of atmospheric attenuation while meeting the requirements of the communication system.In conclusion, the concept of atmospheric attenuation is vital across multiple fields, including telecommunications, meteorology, and environmental science. Its effects on signal strength and data accuracy cannot be overlooked. As technology continues to advance, understanding and mitigating the impacts of atmospheric attenuation will remain a key focus for scientists and engineers alike. By improving our comprehension of this phenomenon, we can enhance communication systems, refine weather predictions, and better monitor environmental changes, ultimately leading to a more informed society.

在物理学和环境科学领域，理解大气衰减的概念对于电信、气象学和环境监测等各种应用至关重要。大气衰减是指电磁波在通过地球大气层时强度的减少。这一现象发生的原因包括散射、吸收和大气颗粒（如气体、水蒸气和气溶胶）的反射。要理解大气衰减的重要性，首先必须考虑它对通信技术的影响。例如，当无线电波从卫星传输到地球上的接收器时，由于大气衰减，信号可能会显著减弱。这种减弱可能导致信号质量差，从而导致通信中断或丢失。工程师和科学家在设计依赖无线电频率传输的系统时，必须考虑大气衰减。他们通常使用预测信号损失程度的模型，以确保通信保持有效。此外，大气衰减在气象学中也起着至关重要的作用。天气预报在很大程度上依赖于从卫星收集的数据，这些数据观察地球表面和大气。然而，这些数据的准确性可能会因大气衰减而受到影响。例如，当卫星捕捉云层覆盖图像或监测温度变化时，信号可能会受到空气中水分或其他大气元素的影响。气象学家必须了解大气衰减的程度，以正确解读数据并提供可靠的天气预报。除了电信和气象学，大气衰减在环境监测中也具有重要意义。研究空气质量和污染水平的科学家必须考虑大气衰减如何影响他们的测量。污染物可以散射和吸收光和其他电磁波，从而导致数据收集中的差异。理解大气衰减有助于研究人员开发更准确的污染扩散模型及其对健康和环境的影响。此外，大气衰减随着频率的变化而变化。高频信号（例如微波通信中使用的信号）往往比低频信号经历更大的衰减。这一特性对通信系统的设计具有重要意义，尤其是在建筑物和其他结构可能进一步导致信号衰减的城市地区。工程师必须仔细选择频率，以最小化大气衰减的影响，同时满足通信系统的要求。总之，大气衰减的概念在电信、气象学和环境科学等多个领域至关重要。它对信号强度和数据准确性的影响不容忽视。随着技术的不断进步，理解和减轻大气衰减的影响将继续成为科学家和工程师的重点。通过提高我们对这一现象的理解，我们可以增强通信系统、完善天气预测，并更好地监测环境变化，最终导致一个更加信息化的社会。