azimuthal chart

简明释义

方位投影地图;

英英释义

例句

1.Using an azimuthal chart, the pilot could determine the best approach for landing.

使用方位图，飞行员可以确定最佳的降落方式。

2.The azimuthal chart displayed the positions of stars from a specific location on Earth.

这张方位图显示了从地球某个特定位置看到的星星的位置。

3.The navigator used an azimuthal chart to plot the shortest route to the island.

导航员使用了一张方位图来绘制到岛屿的最短路线。

4.An azimuthal chart is essential for radio operators to understand signal propagation.

对于无线电操作员来说，方位图对理解信号传播至关重要。

5.In meteorology, an azimuthal chart helps to visualize wind patterns around a central point.

在气象学中，方位图有助于可视化围绕中心点的风模式。

作文

In the world of cartography, various types of maps serve different purposes, aiding in navigation and providing geographical insights. One such map is the azimuthal chart, which has unique characteristics that make it particularly useful for certain applications. An azimuthal chart (方位图) is a two-dimensional representation of the Earth's surface where distances and directions are accurately depicted from a central point. This type of chart is often used in aviation, meteorology, and even astronomy, as it allows for easy calculation of angles and distances between points on the globe.The primary feature of an azimuthal chart is its projection method. Unlike traditional maps that may distort shapes or sizes of landmasses, the azimuthal chart maintains true direction and distance from the center point. This is achieved by projecting the surface of the Earth onto a flat plane, usually tangent to the globe at a specific location. For example, if an azimuthal chart is centered on New York City, all distances and directions measured from this point will be accurate, making it an invaluable tool for pilots who need to navigate precisely.Furthermore, azimuthal charts are not just limited to terrestrial navigation; they are also widely used in the field of astronomy. Astronomers utilize azimuthal charts to locate celestial bodies in the night sky. By aligning the chart with the observer's position, one can easily determine the direction to look for a particular star or planet. This practical application highlights the versatility of the azimuthal chart beyond conventional mapping.Another important aspect of azimuthal charts is their ability to represent great circles. A great circle is the shortest path between two points on the surface of a sphere, and understanding these routes is crucial for efficient travel. In aviation, for instance, flight paths are often plotted along great circles to minimize fuel consumption and time. The azimuthal chart facilitates this by allowing pilots to visualize these routes clearly, ensuring they can make informed decisions during flight planning.Despite their advantages, azimuthal charts do have limitations. Since they focus on a specific central point, areas farther away from this point may become distorted. This means that while the chart is excellent for local navigation, it may not be suitable for global perspectives. Therefore, cartographers often use a combination of different map types to provide comprehensive geographical information.In conclusion, the azimuthal chart (方位图) is a specialized mapping tool that offers precise direction and distance from a central point. Its applications range from aviation and meteorology to astronomy, showcasing its versatility and importance in various fields. Understanding how to read and utilize an azimuthal chart can greatly enhance one’s navigational skills and geographical knowledge. As technology continues to evolve, the principles behind azimuthal charts remain relevant, proving that traditional methods of mapping still hold significant value in our modern world.