parallel of declination

简明释义

赤纬平行圈

英英释义

例句

1.Understanding the parallel of declination is crucial for accurate navigation.

理解偏角平行线对于准确导航至关重要。

2.The compass reading can be adjusted by considering the parallel of declination.

通过考虑偏角平行线，可以调整指南针读数。

3.In some regions, the parallel of declination can shift significantly over time.

在某些地区，偏角平行线可能会随着时间显著变化。

4.The parallel of declination varies depending on your geographic location.

偏角平行线因地理位置而异。

5.Navigators must account for the parallel of declination when plotting their courses.

导航员在绘制航线时必须考虑偏角平行线。

作文

In the study of geography and navigation, understanding the concept of the parallel of declination is essential. The parallel of declination refers to an imaginary line on the Earth's surface that runs parallel to the equator and indicates the angle of declination of the magnetic field relative to true north. This concept is crucial for navigators and geographers alike, as it helps them to accurately determine their position and direction when using a compass. The Earth’s magnetic field is not uniform; it varies in strength and direction depending on where you are located on the planet. The parallel of declination provides a reference point for understanding these variations. For instance, in some regions, the magnetic north can be significantly different from true north due to the Earth's magnetic anomalies. This discrepancy can lead to navigational errors if not properly accounted for. Navigators often rely on maps that include the parallel of declination to adjust their compasses accordingly. By knowing the angle of declination, they can make necessary corrections to their bearings. This is particularly important in areas where the declination is high, as even a small error can result in significant deviations over long distances. Furthermore, the parallel of declination can change over time due to shifts in the Earth's magnetic field. These changes are gradual but can affect navigation and mapping efforts. Therefore, it is vital for those involved in navigation, whether for recreational boating or professional maritime operations, to be aware of the current declination in their area. In summary, the parallel of declination is more than just a geographic term; it is a critical element in ensuring safe and accurate navigation. Understanding how it works allows individuals to traverse our planet with greater confidence and precision. As technology continues to evolve, the importance of traditional navigation methods, including the use of the parallel of declination, remains relevant. In an age where GPS and digital navigation tools dominate, a solid grasp of fundamental concepts like the parallel of declination can enhance one’s ability to navigate effectively, both on land and at sea.

在地理和导航研究中，理解“declination的平行线”这一概念至关重要。“declination的平行线”指的是地球表面的一条虚拟线，它与赤道平行，表示磁场相对于真北的偏角。这个概念对于导航员和地理学家来说都很重要，因为它帮助他们在使用指南针时准确确定自己的位置和方向。地球的磁场并不均匀；它的强度和方向因您所处的位置而异。“declination的平行线”为理解这些变化提供了一个参考点。例如，在某些地区，磁北与真北之间可能存在显著差异，这主要是由于地球的磁异常造成的。如果不加以考虑，这种差异可能会导致导航错误。导航员通常依赖于包含“declination的平行线”的地图来相应地调整他们的指南针。通过了解偏角，他们可以对航向进行必要的修正。这在偏差较大的地区尤其重要，因为即使是小的错误在长距离内也可能导致显著的偏离。此外，由于地球磁场的变化，“declination的平行线”可能会随时间而变化。这些变化是渐进的，但可能影响导航和制图工作。因此，对于那些参与导航的人，无论是休闲航海还是专业海上作业，都必须了解其所在地区的当前偏角。总之，“declination的平行线”不仅仅是一个地理术语；它是确保安全和准确导航的关键要素。理解其工作原理使个人能够更自信、更精确地穿越我们的星球。随着技术的不断发展，传统导航方法的重要性，包括使用“declination的平行线”，仍然相关。在一个GPS和数字导航工具主导的时代，扎实掌握像“declination的平行线”这样的基本概念，可以增强个人在陆地和海洋上有效导航的能力。