Platform Merits Demerits
Satellites Short revisit time, produced auxiliary records, gave free of cost information besides data of unreachable places Low signal to noise proportion, demand for geometric as well as atmospheric amendments, atmospheric absorption affecting with spectral quantities
Airborne Extraordinary spatial resolution, gave data of unreachable places, tools available in the range of (1000–2500 nm) Extraordinary working complication, expensive, demand for meteorological environment for remote sensing usage, official limitations for flight
Unmanned Aerial Systems (UASs) Extraordinary spatial resolution, designing of flight strategy by taking weather situations into consideration Restricted payloads, restricted flight period, demand for geometric as well as atmospheric amendments