2.2. Airborne
Spatial evaluation of soil environment gives correct mapping of changeability in agricultural field via Airborne hyperspectral imaging (Stevens, van Wesemael et al. 2008). It is also useful for data collection to divide a place in agreement with soil heterogeneity (Mulder, De Bruin et al. 2011). Airborne set-up sensors exhibit flexibleness for a specific measurement time window giving power to choose optimal flight condition and work under an extraordinary-cloud coverage (Usha and Singh 2013).