Pollution could also be monitored to avoid dissenting effects on fishing ground. . With satellite data we may observe the sea surface phenomena associated with species distribution. This may simply involve projecting the distribution of fishing activities at a certain area. Satellite images could be used to descry different colours of the ocean to determine areas with huge amounts of plankton's. This is true as different ambient factors and objects emit different electromagnetic radiation's.
Satellites can oversee the entire earth's surface on a periodical basis covering large areas.
The orbit of a satellite is generally considered a circle having the earth as its centre. Polar - having an orbit within the plane of the earth's orbit. Near Polar - Having an orbit oblique to the axis of the earth. The polar orbits are preferred for viewing longitudinal zones in full daylight or during night time. The track of the satellite crosses the equator at the nodal points.