magnetic variation

简明释义

磁罗经误差

英英释义

例句

1.Understanding magnetic variation is crucial for pilots when flying across different regions.

理解磁偏差对于飞行员在跨越不同地区时至关重要。

2.During the expedition, the team frequently checked for magnetic variation updates.

在探险过程中，团队经常检查磁偏差的更新。

3.The map included a note about magnetic variation in that area.

地图上包含了该地区关于磁偏差的说明。

4.The navigator adjusted the compass for magnetic variation to ensure accurate readings.

导航员调整了指南针以适应磁偏差，以确保读数准确。

5.Sailors must account for magnetic variation to navigate effectively at sea.

水手必须考虑磁偏差才能有效地在海上航行。

作文

Understanding the concept of magnetic variation is essential for navigation and geoscience. Magnetic variation, also known as magnetic declination, refers to the angle between magnetic north and true north at a specific location on the Earth's surface. This phenomenon occurs because the Earth's magnetic field is not perfectly aligned with its rotational axis. As a result, the direction of magnetic north differs from that of geographic north. Navigators, whether they are sailors or pilots, must account for magnetic variation to ensure accurate navigation. Failure to consider this variation can lead to significant navigational errors, potentially resulting in dangerous situations at sea or in the air. The importance of magnetic variation extends beyond navigation. It plays a crucial role in geophysical studies and understanding the Earth's magnetic field. Scientists study magnetic variation to gain insights into the Earth's interior and the processes that shape our planet. Variations in the magnetic field can indicate changes in the Earth’s crust, such as tectonic activity, volcanic eruptions, or even the movement of minerals. By monitoring magnetic variation, researchers can predict geological events and better understand the dynamics of our planet.Moreover, magnetic variation is also relevant in the field of archaeology. Archaeologists use magnetic surveys to locate and map ancient structures and artifacts buried underground. The magnetic properties of different materials can affect the local magnetic field, allowing archaeologists to identify sites of historical significance. This application of magnetic variation demonstrates its interdisciplinary relevance, bridging the gap between natural sciences and humanities.In addition to its scientific applications, magnetic variation has practical implications for everyday technology. Many modern devices, including smartphones and tablets, rely on digital compasses that utilize the Earth's magnetic field for orientation. These devices must be calibrated to account for magnetic variation to provide accurate directional information. Users often overlook this aspect, not realizing that their devices may display incorrect headings if magnetic variation is not taken into account.As we continue to explore the Earth and its magnetic properties, it becomes increasingly important to educate ourselves about magnetic variation. Understanding this concept can enhance our navigation skills, inform our scientific inquiries, and improve our use of technology. In conclusion, magnetic variation is not merely a technical term; it is a critical element that influences various aspects of life on Earth. By recognizing its significance, we can better appreciate the complexities of our planet and navigate it more safely and effectively.

理解磁偏角这一概念对于导航和地球科学至关重要。磁偏角，也称为磁倾角，是指地球表面特定位置的磁北与真北之间的角度。这一现象的出现是因为地球的磁场并未与其自转轴完美对齐。因此，磁北的方向与地理北的方向不同。无论是水手还是飞行员，导航者都必须考虑磁偏角以确保准确导航。不考虑这种变化可能导致重大的导航错误，从而在海上或空中造成危险情况。磁偏角的重要性超越了导航。它在地球物理研究和理解地球磁场方面发挥着关键作用。科学家研究磁偏角以深入了解地球内部及塑造我们星球的过程。磁场的变化可以指示地壳的变化，例如构造活动、火山喷发甚至矿物的移动。通过监测磁偏角，研究人员可以预测地质事件，更好地理解我们星球的动态。此外，磁偏角在考古学领域也具有相关性。考古学家利用磁力勘测来定位和绘制埋藏在地下的古代结构和文物。不同材料的磁性特征会影响当地的磁场，使考古学家能够识别具有历史意义的遗址。这种对磁偏角的应用展示了其跨学科的相关性，架起了自然科学与人文学科之间的桥梁。除了科学应用外，磁偏角还对日常技术具有实际意义。许多现代设备，包括智能手机和平板电脑，依赖于数字指南针，这些指南针利用地球的磁场进行定位。这些设备必须经过校准，以考虑磁偏角，以提供准确的方向信息。用户往往忽视这一点，而没有意识到如果不考虑磁偏角，他们的设备可能会显示不正确的方向。随着我们继续探索地球及其磁性特性，教育自己关于磁偏角的知识变得愈发重要。理解这一概念可以增强我们的导航技能，丰富我们的科学探究，并改善我们对技术的使用。总之，磁偏角不仅仅是一个技术术语；它是影响地球上各个方面的关键要素。通过认识到其重要性，我们可以更好地欣赏我们星球的复杂性，更安全、更有效地导航。