exmeridian latitude

简明释义

近中天纬度

英英释义

例句

1.In astronomy, understanding exmeridian latitude is crucial for accurate star positioning.

在天文学中，理解外经纬度对于准确的星体定位至关重要。

2.The surveyor used exmeridian latitude to ensure the land boundaries were correctly marked.

测量员使用外经纬度确保土地边界被正确标记。

3.When planning the expedition, the team relied on exmeridian latitude for navigation.

在计划探险时，团队依赖于外经纬度进行导航。

4.The pilot adjusted the flight path based on the exmeridian latitude readings from the instruments.

飞行员根据仪器的外经纬度读数调整飞行路径。

5.The navigator calculated the ship's position using the exmeridian latitude to determine its exact location at sea.

导航员使用外经纬度计算船只的位置，以确定其在海上的确切位置。

作文

Understanding the concept of exmeridian latitude is essential for anyone interested in navigation, geography, or astronomy. The term refers to a specific method used to determine latitude based on observations made at sea or from a fixed point on land. This technique has historical significance, especially during the age of exploration when sailors relied heavily on celestial navigation. To grasp the importance of exmeridian latitude, we need to delve into its definition and application.The term 'exmeridian' comes from Latin roots, where 'ex' means 'out of' and 'meridian' refers to the midday or the highest point of the sun in the sky. Essentially, exmeridian latitude involves calculating the latitude of a location by observing the altitude of celestial bodies, particularly the sun, at times other than local noon. This calculation can be crucial when navigators are unable to determine their position using more straightforward methods, such as dead reckoning or using a sextant at noon.To apply exmeridian latitude, one must take precise measurements of the sun’s altitude at various times of the day. By knowing the exact time of the observation and the date, navigators can use tables that provide the sun's declination to calculate their latitude. This process requires careful attention to detail and a good understanding of spherical trigonometry, which is why it was often reserved for skilled navigators and astronomers.The significance of exmeridian latitude cannot be overstated, especially in the context of maritime history. During the 18th and 19th centuries, many explorers ventured into uncharted waters, relying on celestial navigation to guide their journeys. The ability to accurately determine latitude allowed them to chart their courses more effectively, avoiding dangerous reefs and islands. Moreover, this technique was not only limited to oceanic voyages; it also played a crucial role in land exploration, where accurate maps were necessary for the expansion of territories.In modern times, while GPS technology has largely supplanted traditional navigation methods, understanding exmeridian latitude remains relevant. It serves as a reminder of the ingenuity and resourcefulness of early navigators who relied on the stars to guide them. Furthermore, this knowledge is invaluable in situations where electronic navigation aids fail or are unavailable.In conclusion, the concept of exmeridian latitude is a fascinating intersection of science and history. It reflects the evolution of navigation techniques and highlights the importance of celestial observations in determining one’s position on Earth. As we continue to rely on advanced technologies for navigation, it is crucial to appreciate the foundational methods that paved the way for our current capabilities. By studying exmeridian latitude, we gain insight into the challenges faced by early navigators and the remarkable achievements they accomplished through their understanding of the cosmos. This knowledge enriches our appreciation for both historical exploration and the ongoing journey of discovery in the field of navigation.

理解exmeridian latitude这一概念对于任何对导航、地理或天文学感兴趣的人来说都是至关重要的。这个术语指的是一种特定的方法，用于根据在海上或固定地点的观察来确定纬度。这项技术在历史上具有重要意义，特别是在探索时代，当时的水手们在很大程度上依赖于天文导航。要理解exmeridian latitude的重要性，我们需要深入探讨它的定义和应用。“exmeridian”一词源于拉丁语，其中“ex”意为“出自”，“meridian”指的是正午或太阳在天空中的最高点。本质上，exmeridian latitude涉及通过观察天体，特别是太阳，在地方中午以外的时间来计算一个地点的纬度。当导航员无法使用更简单的方法（如死算或在正午使用六分仪）来确定其位置时，这种计算可能至关重要。要应用exmeridian latitude，人们必须在一天中的不同时间精确测量太阳的高度。通过知道观察的确切时间和日期，导航员可以使用提供太阳偏差的表格来计算他们的纬度。这个过程需要仔细关注细节，以及对球面三角学的良好理解，这就是为什么它通常被保留给熟练的导航员和天文学家的原因。exmeridian latitude的重要性不容小觑，尤其是在海洋历史的背景下。在18世纪和19世纪，许多探险者冒险进入未知水域，依靠天文导航来指导他们的旅程。准确确定纬度的能力使他们能够更有效地绘制航线，避免危险的暗礁和岛屿。此外，这项技术不仅限于海洋航行；它在陆地探索中也发挥了至关重要的作用，准确的地图对于扩展领土是必要的。在现代，尽管GPS技术在很大程度上取代了传统的导航方法，但理解exmeridian latitude仍然是相关的。它提醒我们早期导航员的聪明才智和机智，他们依靠星星来指引方向。此外，这些知识在电子导航辅助设备失效或不可用的情况下是无价的。总之，exmeridian latitude的概念是科学与历史的迷人交汇。它反映了导航技术的发展，并突显了天文观察在确定地球上位置的重要性。随着我们继续依赖先进技术进行导航，欣赏奠定我们当前能力基础的方法是至关重要的。通过研究exmeridian latitude，我们深入了解早期导航员所面临的挑战以及他们通过对宇宙的理解取得的非凡成就。这些知识丰富了我们对历史探索的欣赏以及导航领域持续发现之旅的理解。