terrestrial refraction

简明释义

地面蒙气差

英英释义

例句

1.Astronomers often correct their observations for terrestrial refraction to ensure accuracy.

天文学家经常修正他们的观察以考虑地面折射，以确保准确性。

2.The phenomenon of light bending due to the atmosphere is known as terrestrial refraction.

由于大气造成的光线弯曲现象被称为地面折射。

3.In surveying, terrestrial refraction can affect the measurements taken over long distances.

在测量中，地面折射可能会影响长距离测量的结果。

4.The apparent position of stars can change due to terrestrial refraction when viewed from Earth.

从地球上看，星星的表观位置可能会因地面折射而改变。

5.Navigators must account for terrestrial refraction when plotting their courses.

导航员在规划航线时必须考虑地面折射。

作文

The phenomenon of terrestrial refraction is a fascinating aspect of atmospheric science that affects how we perceive objects in the distance. When light travels through different layers of air, it bends due to variations in temperature and density. This bending of light can cause objects that are far away to appear higher or lower than their actual positions. For instance, when observing a distant ship on the horizon, one might notice that it seems to float above the water rather than being partially submerged. This optical illusion is primarily caused by terrestrial refraction (地面折射), which plays a crucial role in our everyday visual experiences.Understanding terrestrial refraction (地面折射) begins with the concept of light waves. Light travels in straight lines but can be bent when it passes through mediums of varying densities. In the atmosphere, warm air is often found above cooler air, creating a gradient of density. When light from an object, such as a lighthouse or a mountain, passes through these layers, it bends towards the denser, cooler air. As a result, the object appears to be in a different position than it actually is.This phenomenon is not only limited to maritime observations. It also affects astronomical observations. For example, when observing stars near the horizon, their positions may seem altered due to terrestrial refraction (地面折射). Astronomers must take this into account when making precise measurements, as the apparent position of celestial bodies can lead to significant errors if not corrected.Moreover, terrestrial refraction (地面折射) has practical implications for navigation and aviation. Pilots and navigators need to understand how this bending of light can affect their readings and the visibility of landmarks. In some cases, failure to account for terrestrial refraction (地面折射) can lead to miscalculations that impact safety and accuracy.In conclusion, terrestrial refraction (地面折射) is a critical concept that illustrates the interaction between light and the Earth's atmosphere. It alters our perception of distance and position, impacting various fields such as navigation, astronomy, and even everyday life. By recognizing and understanding this phenomenon, we can develop a deeper appreciation for the complexities of our environment and the science that governs it.