How to divide the latitude and longitude of the earth
1, division of the longitude of the earth
The division of longitude of the earth is based on the prime meridian. The prime meridian passes through the meridian between Greenwich Observatory and Royal Observatory. East longitude and west longitude extend to both sides along the prime meridian, dividing the earth into two hemispheres. The longitude of the eastern hemisphere is from the prime meridian to 180 degrees east, while the longitude of the western hemisphere is from the prime meridian to 180 degrees west.
2, the division of the earth's latitude
The division of latitude of the earth is based on the equator. The equator is a circle on the earth's surface, which is 0/80 degrees away from the poles/kloc-,and the latitudes are equal. South latitude and north latitude extend to both sides along the equator, dividing the earth into the northern hemisphere and the southern hemisphere. The latitude of the northern hemisphere is from the equator to 90 degrees, and the latitude of the southern hemisphere is from the equator to 90 degrees.
3. Latitude and longitude and map projection
Map projection is the process of transforming the latitude and longitude coordinates of the earth's surface into a plane map. In order to accurately represent the position and shape on the earth on a plane map, map projection must be used. There are many kinds of map projections, including isometric projection, isometric projection and isometric projection. Each projection has its own advantages and disadvantages and is suitable for different application fields.
Three applications of latitude and longitude of the earth
1, geography
The latitude and longitude of the earth is the basic tool to describe the location in geography. By using longitude and latitude, we can accurately determine the location of any position on the earth's surface, including geographical features such as countries, cities, mountains, rivers and lakes. Longitude and latitude can also be used to study the shape, size and structure of the earth and the relationship between different regions.
2. Meteorology
The longitude and latitude of the earth are widely used in meteorology for meteorological observation and weather forecast. The weather station uses latitude and longitude to determine its position, and the weather forecast uses these coordinates to predict the moving track and intensity of the weather system. Latitude and longitude can also be used to study climate change and global climate systems, such as atmospheric circulation and ocean currents.
Step 3 sail
The latitude and longitude of the earth is the basis of Global Positioning System (GPS), which is widely used in navigation and positioning. By using GPS equipment, people can determine their latitude and longitude positions, thus finding the right direction and destination. Latitude and longitude can also be used for map making and map identification, such as drawing maps and identifying locations on maps.