ABSTRACT

The development of satellite-based remote sensing technologies was, for a long time, driven by agricultural information needs (Becker-Reshef et al., 2010a). In the United States, for example, preliminary research and development of civil satellite monitoring is reported having started in the early 1970s (launch of Earth Resources Technology Satellite later renamed Landsat-1) following unanticipated severe wheat shortages in Russia (Figure 4.1) (Pinter et al., 2003).