longitude in arc

简明释义

用弧度表示经度

英英释义

例句

1.In geodesy, measuring longitude in arc is essential for accurate mapping.

在大地测量学中，测量弧度经度对于准确制图至关重要。

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

导航员使用弧度经度计算船只的位置，以确定其确切位置。

3.To convert degrees to longitude in arc, you simply multiply by 60.

要将度数转换为弧度经度，只需乘以60。

4.When plotting a course, sailors need to consider longitude in arc for navigation.

在绘制航线时，水手需要考虑弧度经度以进行导航。

5.The GPS device displays the longitude in arc along with the latitude.

GPS设备显示弧度经度和纬度。

作文

Understanding geographical coordinates is essential for navigation and mapping. One of the key components of these coordinates is longitude, which is measured in degrees east or west of the Prime Meridian. However, when we refer to longitude in arc, we are specifically discussing the measurement of longitude along the Earth's surface, expressed in arc degrees. This is crucial for accurately determining positions on the globe. The Earth is divided into 360 degrees of longitude, with the Prime Meridian at 0 degrees. Each degree of longitude can be further subdivided into minutes and seconds, allowing for precise location identification. When we talk about longitude in arc, we are essentially referring to how far a point is from the Prime Meridian in terms of a circular arc. This is particularly important for navigation, as it affects how distances are calculated on the curved surface of the Earth.For example, if you are traveling from London, which is situated at 0 degrees longitude, to New York City, located at approximately 74 degrees west longitude, you would need to consider the longitude in arc to determine the actual distance traveled. The curvature of the Earth means that the distance represented by degrees of longitude varies depending on where you are on the planet. At the equator, one degree of longitude corresponds to about 69 miles, but this distance decreases as you move toward the poles.In addition to practical navigation, understanding longitude in arc is also vital for fields such as meteorology and astronomy. For instance, when tracking weather patterns or celestial events, scientists must account for the arc length of longitude to predict movements accurately. This understanding helps in creating more accurate weather forecasts and astronomical observations.Moreover, modern technology has made it easier to measure longitude in arc with high precision. Global Positioning Systems (GPS) utilize satellites that provide real-time data on an object's location, including its longitude, which is essential for various applications, from driving directions to geocaching. The accuracy of GPS relies on the ability to measure longitude in arc to fractions of a second, showcasing the importance of this concept in our daily lives.In conclusion, the term longitude in arc encapsulates a fundamental aspect of geographic science that plays a critical role in navigation, meteorology, and technology. By measuring longitude in arc degrees, we can better understand our position on Earth and navigate effectively across its diverse landscapes. Whether we are plotting a course across the ocean or observing distant stars, the concept of longitude in arc remains a cornerstone of our spatial awareness and exploration of the world around us.

理解地理坐标对于导航和制图至关重要。这些坐标的一个关键组成部分是经度，它是相对于本初子午线向东或向西测量的度数。然而，当我们提到弧度经度时，我们特别讨论的是沿地球表面测量的经度，以弧度数表示。这对于准确确定地球上的位置至关重要。地球被划分为360度经度，本初子午线位于0度。每一度经度可以进一步细分为分钟和秒，从而允许精确定位。当我们谈论弧度经度时，我们实际上是在指一个点距离本初子午线的弧长。这对于导航尤其重要，因为它影响在地球曲面上计算的距离。例如，如果您从位于0度经度的伦敦出发，前往位于大约74度西经度的纽约市，您需要考虑弧度经度来确定实际行驶的距离。地球的曲率意味着经度所表示的距离会根据您在地球上的位置而有所不同。在赤道附近，一度经度大约对应69英里，但随着您向极地移动，这个距离会减少。除了实际导航外，理解弧度经度对于气象学和天文学等领域也至关重要。例如，在跟踪天气模式或天文事件时，科学家必须考虑经度的弧长以准确预测运动。这种理解有助于创建更准确的天气预报和天文观测。此外，现代技术使得高精度测量弧度经度变得更加容易。全球定位系统（GPS）利用卫星提供实时数据，显示物体的位置，包括其经度，这对于各种应用至关重要，从驾驶方向到寻宝。GPS的准确性依赖于将弧度经度测量到秒的小数部分，展示了这一概念在我们日常生活中的重要性。总之，术语弧度经度概括了地理科学的一个基本方面，在导航、气象和技术中扮演着关键角色。通过以弧度数测量经度，我们可以更好地理解我们在地球上的位置，并有效地在其多样的景观中导航。无论我们是在海洋上绘制航线，还是观察遥远的星星，弧度经度的概念始终是我们空间意识和探索周围世界的基石。