ISOHYET MAP

This image is an example of an Isohyet map. This map represents the rainfall distribution of Sabah. An Isohyet map is a contour map that measures rainfall. The definition of the word Isohyet is a line drawn on a weather map connecting points that receive equal amounts of precipitation during a given period of time.

LIDAR MAP

This image is an example of a LIDAR map (also known as Light Detection and Ranging). LIDAR, a type of remote sensing, is a process of scanning the earth with lasers from an aircraft to obtain accurate elevations. LIDAR is similar to sonar in that it measures distance by the time it takes for the laser to reach the ground and bounce back to the aircraft.

ISOBAR MAP

This is an Isobar Map from the Bureau of Meteorology, Australia. Isobar maps are a form of contouring map. A lines connecting points of equal pressure is called an isobar. That means, that at every point along a given isobar, the values of pressure are the same.

Contouring lines:

• are used to represent three dimensional surfaces of the world on a flat map.
• are imagery lines that join equal values of whatever is being mapped.

REMOTE SENSING - ORBITAL SATELLITES IMAGE

This map is a remote sensory image of orbital satellites in .KML format viewed using Google Earth. This view is limited to the North and South Carolina area, but on Google Earth you can zoom in or out on the image to see different orbital satellite views. You can even go so far as to see the orbital satellite image of the entire earth (though the view is not nearly as clear).

For those of you that are unfamiliar with remote sensing imagery, remote sensing is defined as a measurement of an object's characteristics from a distance using reflected or emitted electromagnetic energy. In more simple terms, remote sensing is the collection of data without directly measuring the object.

PLSS MAP

A PLSS (Public Land Survey System) map is a non-coordinate systematic map. This PLSS Map is a map of Franklin County, Alabama that shows townships and ranges. Townships are the north-south zones and Ranges are the east-west zones. Each section is equally divided, and the intersection of a township and range is called a congressional township.

STATISTICAL MAP

This is a statistical map. A statistical map is a type of map that communicate relative scaling of map properties, such as distances that are relative to properties other than physical distance. This map represents Napoleon's Russian Campaign of 1812. The size of Napoleon’s army is shown by the width of the lines of advance (green) and retreat (gold). The retreat information is correlated with a temperature scale shown along the lower portion of the map. This map was published by Charles Minard in 1869.