great circle distance

简明释义

大圆距离

英英释义

例句

1.In aviation, pilots are trained to understand great circle distance 大圆距离 for fuel efficiency.

在航空领域，飞行员接受训练以理解大圆距离 great circle distance以提高燃油效率。

2.The flight planning software calculates the great circle distance 大圆距离 between two airports to optimize the route.

航班规划软件计算两个机场之间的大圆距离 great circle distance以优化航线。

3.To find the shortest path over the Earth's surface, you need to understand the concept of great circle distance 大圆距离.

要找到地球表面上的最短路径，您需要了解大圆距离 great circle distance的概念。

4.When sailing across the ocean, navigators often use great circle distance 大圆距离 to chart their course.

在穿越海洋时，航海者通常使用大圆距离 great circle distance来绘制航线。

5.GPS systems calculate your location based on the great circle distance 大圆距离 from satellites.

GPS系统根据与卫星的大圆距离 great circle distance计算您的位置。

作文

In the field of geography and navigation, understanding the concept of great circle distance is crucial for accurate travel planning and route optimization. The great circle distance refers to the shortest path between two points on the surface of a sphere, which is particularly relevant when considering the Earth as an oblate spheroid. This concept is not only fundamental in theoretical mathematics but also has practical applications in aviation, maritime navigation, and even in satellite communications.When we think about traveling from one city to another, many people might instinctively consider a straight line on a flat map. However, due to the curvature of the Earth, this approach can lead to significant inaccuracies. The great circle distance provides a more reliable method to determine the shortest distance between two locations. For example, if one were to fly from New York to Tokyo, the flight path would not be a straight line on a flat map but rather follow a curved trajectory that represents the great circle distance. This path minimizes the distance traveled and, consequently, the time spent in the air.To calculate the great circle distance, various mathematical formulas can be employed, such as the Haversine formula or Vincenty’s formulae. These methods take into account the latitude and longitude of the two points, allowing travelers and navigators to accurately assess distances over the globe. By utilizing these calculations, airlines can create efficient flight paths that save fuel and reduce travel time, ultimately benefiting both the airline and the passengers.Moreover, the significance of the great circle distance extends beyond aviation. In maritime navigation, ships also rely on this principle to chart their courses across oceans. For instance, when a ship sails from Los Angeles to Sydney, it will follow a path that adheres to the principles of great circle distance, ensuring that the journey is as direct as possible. This practice is essential for international shipping companies that need to optimize their routes for cost-effectiveness and timely deliveries.In addition to practical applications, the great circle distance has implications in fields such as geodesy and cartography. Understanding how to measure distances on a spherical surface helps cartographers create more accurate maps and models of the Earth. By incorporating the great circle distance into their work, they can provide users with better representations of geographical relationships, enhancing our understanding of the world.In conclusion, the concept of great circle distance is an essential element in various fields, including aviation, maritime navigation, and geography. By recognizing the importance of this principle, individuals and organizations can make informed decisions regarding travel and navigation. Whether you are planning a long-haul flight or mapping out a sailing route, understanding the great circle distance will undoubtedly lead to more efficient and effective journeys across our planet.

在地理和导航领域，理解“大圆距离”这一概念对于准确的旅行规划和路线优化至关重要。“大圆距离”是指球面上两点之间的最短路径，这在考虑地球为一个扁球体时尤为相关。这个概念不仅在理论数学中是基础，而且在航空、海洋导航甚至卫星通信中也有实际应用。当我们想到从一个城市旅行到另一个城市时，许多人可能会本能地考虑在平面地图上的直线。然而，由于地球的曲率，这种方法可能导致显著的不准确。“大圆距离”提供了一种更可靠的方法来确定两个地点之间的最短距离。例如，如果有人要从纽约飞往东京，航线不会是在平面地图上的直线，而是遵循一条曲线路径，代表着“大圆距离”。这条路径最小化了行程距离，从而减少了空中的时间。为了计算“大圆距离”，可以使用各种数学公式，如哈弗辛公式或文森提公式。这些方法考虑到两个点的纬度和经度，使旅行者和导航员能够准确评估全球范围内的距离。通过利用这些计算，航空公司可以创建节省燃料和减少旅行时间的高效航线，最终使航空公司和乘客都受益。此外，“大圆距离”的重要性超越了航空。在海洋导航中，船只也依赖这一原则来绘制它们穿越海洋的航线。例如，当一艘船从洛杉矶航行到悉尼时，它将沿着遵循“大圆距离”原则的路径航行，以确保旅程尽可能直接。这一做法对于需要优化航线以实现成本效益和及时交付的国际航运公司至关重要。除了实际应用外，“大圆距离”在大地测量学和制图学等领域也具有重要意义。理解如何在球面上测量距离帮助制图师创建更准确的地图和地球模型。通过将“大圆距离”融入他们的工作，他们可以为用户提供更好的地理关系表示，增强我们对世界的理解。总之，“大圆距离”这一概念是航空、海洋导航和地理等多个领域的基本元素。通过认识到这一原则的重要性，个人和组织可以就旅行和导航做出明智的决策。无论您是在规划长途航班还是绘制航行路线，理解“大圆距离”无疑将导致我们在地球上更高效和有效的旅行。