Map Notes Part 2

• a map is a tool that provided how to get from point A and point B and what will be in you path(geographically)
• scientific method of transferring locations on earth's surface to a flat map is called projection
• four types of distortion
• shape of an area can be distorted
• distance between points may become increased or decreased
• relative size of different areas can be altered
• direction between points can be distorted
• geographic grid is a system of imaginary arcs drawn in a grid pattern on earth's surface
• meridians are arcs drawn between north and south poles, each is a number known as longitude
• parallel are arcs drawn parallel to the equator and are right angels to meridians, each number is known as latitude
• points on earth's surface can be communicated by referencing points of latitude and longitude intersection
• further accuracy can be achieved by dividing each degree into 60 minutes and minutes in 60 seconds
• earth as a sphere is divided into 360 of longitude
• GMT(Greenwich mean time) is located at the prime meridian