Latitude and longitude are geographic coordinate systems used to locate places on the Earth's surface. They provide a way to specify a location's position in terms of its distance from the equator and the prime meridian.
Latitude lines run east-west around the Earth and measure the distance north or south of the equator. The equator is designated as 0 degrees latitude, and lines of latitude are measured in degrees from 0° at the equator to 90° at the poles. The Northern Hemisphere is designated with N for north, while the Southern Hemisphere is designated with S for south.
Longitude lines run north-south from pole to pole and measure the distance east or west of the prime meridian. The prime meridian, located in Greenwich, England, is designated as 0 degrees longitude. Lines of longitude are measured in degrees from 0° at the prime meridian to 180° east or west. The Eastern Hemisphere is designated with E for east, while the Western Hemisphere is designated with W for west.
Locations on Earth are expressed using both latitude and longitude coordinates. For example, the coordinates for the city of Paris, France are approximately 48.8566° N latitude, 2.3522° E longitude.
Understanding latitude and longitude is essential for navigating and locating places on Earth. It also helps in understanding the Earth's geography and climate patterns.