zero meridian

简明释义

零经度子午线

英英释义

例句

1.When mapping the world, the zero meridian serves as the starting point for longitude.

在绘制世界地图时，零度经线作为经度的起点。

2.The Prime Meridian, also known as the zero meridian, runs through Greenwich, England.

被称为零度经线的本初子午线穿过英国格林尼治。

3.The zero meridian is often used as a reference point for measuring time zones.

零度经线通常作为测量时区的参考点。

4.Many GPS systems use the zero meridian to calculate precise locations.

许多GPS系统使用零度经线来计算精确位置。

5.Sailing across the zero meridian can be a significant moment for navigators.

航行穿越零度经线对导航员来说可能是一个重要时刻。

作文

The concept of the zero meridian is pivotal in understanding global geography and navigation. The zero meridian, also known as the Prime Meridian, is the line of longitude that is defined to be 0 degrees. It serves as the reference point for all other longitudes, which are measured in degrees east or west of this line. The location of the zero meridian is at the Royal Observatory in Greenwich, London, and it was established in 1884 during the International Meridian Conference. This decision was made to create a standard for timekeeping and navigation worldwide.Understanding the significance of the zero meridian is essential for various reasons. Firstly, it plays a crucial role in time zones. The Earth is divided into 24 time zones, each representing one hour of the 24-hour day. Since the zero meridian is the starting point, the time at this meridian is known as Greenwich Mean Time (GMT). As you move east or west from the zero meridian, the local time changes by one hour for every 15 degrees of longitude. This system allows for synchronized timekeeping across different regions, which is vital for international travel, communication, and trade.Secondly, the zero meridian is important for navigation. Historically, sailors relied on celestial navigation techniques, using the stars and the position of the sun to determine their location at sea. The establishment of the zero meridian provided a fixed point from which mariners could measure their longitudinal position. This greatly improved maritime navigation and safety. Today, modern technology such as GPS continues to use the principles established by the zero meridian to provide accurate location data for travelers and explorers around the world.Moreover, the zero meridian has cultural and historical significance. It represents a unifying point for the global community, emphasizing the interconnectedness of countries and cultures. The idea that there is a single point on Earth from which all measurements of longitude are derived fosters a sense of global identity. Cities along the zero meridian, such as London, have become landmarks for this geographical significance, attracting millions of tourists who wish to stand at the 'center' of the world.In conclusion, the zero meridian is more than just a line on a map; it is a fundamental aspect of how we understand our world. It influences timekeeping, navigation, and even our cultural perceptions of geography. As we continue to explore and expand our understanding of the planet, the zero meridian will remain a crucial point of reference in both practical applications and symbolic representations of unity among nations. Whether you are a traveler, a student of geography, or simply someone curious about the world, recognizing the importance of the zero meridian can enhance your appreciation of global connections and the systems that govern our daily lives.

“零子午线”的概念在理解全球地理和导航方面至关重要。零子午线，也称为本初子午线，是被定义为0度的经线。它作为所有其他经线的参考点，这些经线是以该线为基准向东或向西测量的。零子午线位于伦敦格林威治的皇家天文台，成立于1884年，在国际子午线会议上确定。这一决定旨在为全球时间记录和导航创造标准。理解零子午线的重要性有多方面的原因。首先，它在时区中发挥着关键作用。地球被划分为24个时区，每个时区代表24小时中的一个小时。由于零子午线是起始点，因此该子午线的时间被称为格林威治标准时间（GMT）。当你从零子午线向东或向西移动时，地方时间每15度经度变化一个小时。这一系统使得不同地区之间的时间记录得以同步，这对国际旅行、沟通和贸易至关重要。其次，零子午线对于导航也很重要。历史上，水手依靠天文导航技术，通过星星和太阳的位置来确定他们在海上的位置。零子午线的建立为海员提供了一个固定点，从这个点可以测量他们的经度位置。这大大改善了海上导航和安全。今天，现代技术如GPS继续使用零子午线建立的原则，为世界各地的旅行者和探险者提供准确的位置数据。此外，零子午线具有文化和历史意义。它代表了全球社区的统一点，强调国家和文化之间的相互联系。地球上有一个单一的点，所有经度测量均源于此，促进了全球身份感。位于零子午线附近的城市，如伦敦，因其地理重要性而成为地标，吸引了数百万游客，他们希望站在“世界中心”。总之，零子午线不仅仅是地图上的一条线；它是我们理解世界的基本方面。它影响着时间记录、导航，甚至是我们对地理的文化认知。随着我们继续探索和扩展对地球的理解，零子午线将始终是实践应用和象征国家团结的关键参考点。无论你是旅行者、地理学生，还是只是对世界充满好奇的人，认识到零子午线的重要性都能增强你对全球联系及其对我们日常生活的影响的欣赏。