Earth observation satellites – Introduction
In order to monitor the weather at large scales and high frequency, it is convenient for a satellite to be in a geostationary orbit. In such an orbit a satellite is able to continuously view almost an entire hemisphere. However, as the orbit is very high (approximately 36 000 km above the Earth) a high spatial resolution is difficult to attain. But for such applications as the tracking of clouds over continents, a high spatial resolution is not necessary.
In this section, some principal Earth Observation satellite missions are presented. For each mission, information is given about the satellite orbit, payload and Earth Observation applications for which they were intended.
Last update: 20 January 2011