Geography

Cartography (continued)


Remote sensing

The other cartographic technique, remote sensing, is the transmission from a satellite of information about the planet's surface or atmosphere.

Almost all physical data collection for experts is done through remote sensing, with specialized satellites that take pictures of the earth at fixed intervals.

For the generation of images by satellites, the light spectrum to be seen is chosen, and some can send signals to capture them in their reflection with the Earth, generating thousands of possibilities of information about minerals, concentrations and types of light. vegetation, among others.

There are satellites that can even see an object up to eight inches on the Earth's surface, when resolutions are usually twenty meters.