longitude in arc

简明释义

用角度表示经度

英英释义

例句

1.The navigator calculated the ship's position using the longitude in arc to determine its exact location.

导航员通过计算弧度经度来确定船只的确切位置。

2.When studying astronomy, understanding longitude in arc helps in tracking celestial bodies.

在研究天文学时，理解弧度经度有助于追踪天体。

3.For the research project, we needed to convert longitude in arc into decimal degrees.

为了研究项目，我们需要将弧度经度转换为十进制度数。

4.In cartography, longitude in arc is essential for creating accurate maps.

在制图中，弧度经度对于制作准确的地图至关重要。

5.The GPS system provides coordinates in longitude in arc for precise navigation.

GPS系统提供的坐标以弧度经度的形式呈现，以实现精确导航。

作文

Understanding the concept of longitude is fundamental to navigation and geography. Longitude refers to the angular distance of a point on the Earth's surface, measured in degrees east or west from the Prime Meridian. One important aspect of this measurement is the idea of longitude in arc, which represents the actual distance along the Earth's surface that corresponds to a specific degree of longitude. This concept is essential for accurately determining positions on maps and for various applications in cartography and navigation.The Earth is not a perfect sphere but rather an oblate spheroid, meaning it is slightly flattened at the poles and bulging at the equator. Because of this shape, the distance represented by one degree of longitude varies depending on where you are on the planet. At the equator, one degree of longitude is approximately 69 miles (111 kilometers), but as you move towards the poles, this distance decreases. Thus, understanding longitude in arc becomes crucial for navigators and geographers who need precise measurements for their work.For instance, when sailors navigate across oceans, they rely on coordinates that include both latitude and longitude. The longitude in arc helps them determine how far they need to travel east or west to reach their destination. If a ship is traveling from a port at 30 degrees west longitude to a port at 60 degrees west longitude, the navigator must calculate the total distance traveled in terms of longitude in arc to ensure they arrive at the correct location. This calculation is vital for efficient route planning and for avoiding hazards at sea.In addition to maritime navigation, the concept of longitude in arc is equally important in aviation. Pilots use GPS systems that rely on precise longitude and latitude readings to guide their flights. Understanding how to convert these measurements into actual distances on the Earth's surface allows pilots to plot their courses accurately and ensure safe landings. For example, a flight from New York City to London involves crossing several lines of longitude, and the pilots must be aware of the longitude in arc to manage fuel consumption and flight time effectively.Moreover, the significance of longitude in arc extends beyond navigation. It plays a role in global positioning systems (GPS) and mapping technologies. Cartographers must account for the curvature of the Earth when creating maps, and knowing the longitude in arc helps them represent distances accurately. This knowledge is also essential for scientists studying the Earth's climate and geology, as they often analyze data collected from different longitudes to understand global patterns.In conclusion, the term longitude in arc encapsulates a critical aspect of geographic measurement that is vital for navigation, aviation, cartography, and scientific research. By understanding how longitude is measured in terms of arc distance, we can appreciate the complexities involved in accurately determining positions on the Earth’s surface. This knowledge not only enhances our ability to navigate the world but also enriches our understanding of the planet's geography and the intricate systems that govern it.

理解经度的概念对于导航和地理学至关重要。经度是指地球表面上某一点的角距离，从本初子午线向东或向西测量，以度数表示。这个测量的一个重要方面是“弧度经度”的概念，它表示与特定经度度数相对应的地球表面上的实际距离。这个概念对于准确确定地图上的位置以及在制图和导航中的各种应用至关重要。地球并不是一个完美的球体，而是一个扁球体，这意味着它在两极略微扁平，在赤道处凸起。由于这种形状，一个经度度数所代表的距离因你所在的位置而异。在赤道上，一个经度大约是69英里（111公里），但随着你向两极移动，这个距离会减少。因此，理解弧度经度对于需要精确测量的导航员和地理学家来说变得至关重要。例如，当水手在海洋中导航时，他们依赖于包括纬度和经度的坐标。弧度经度帮助他们确定向东或向西航行到达目的地所需的距离。如果一艘船从西经30度的港口航行到西经60度的港口，导航员必须计算以弧度经度表示的总航行距离，以确保他们到达正确的位置。这个计算对于高效的航线规划以及避免海上的危险至关重要。除了海洋导航之外，弧度经度的概念在航空领域同样重要。飞行员使用依赖于精确的经度和纬度读数的GPS系统来引导他们的航班。了解如何将这些测量值转换为地球表面上的实际距离，使飞行员能够准确绘制航线并确保安全着陆。例如，从纽约市飞往伦敦的航班涉及穿越几条经度线，飞行员必须了解弧度经度以有效管理燃料消耗和飞行时间。此外，弧度经度的重要性不仅限于导航。它在全球定位系统（GPS）和制图技术中也发挥着作用。制图师在制作地图时必须考虑地球的曲率，而了解弧度经度有助于他们准确表示距离。这种知识对于研究地球气候和地质的科学家同样至关重要，因为他们通常分析来自不同经度的数据，以理解全球模式。总之，术语弧度经度概括了一个关键的地理测量方面，对于导航、航空、制图和科学研究至关重要。通过理解经度如何以弧度距离进行测量，我们可以欣赏到准确确定地球表面位置所涉及的复杂性。这种知识不仅增强了我们在世界上导航的能力，还丰富了我们对地球地理及其治理的复杂系统的理解。