chapter  8
Remote sensing for mapping, monitoring vegetation dynamics and providing biomass production estimates JANSLE VIE IRA ROCHA AND RUBENS A .C. LAMPARELLI
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Remote sensing is the science (Fussel et al., 1986; Jensen, 2006) that allows the gathering of information about a target without being in direct contact with it by analysing its interaction with electromagnetic radiation. In this case ‘target’ means any component of Earth’s surface or sub-surface. There are different definitions for ‘remote sensing’ in the literature, with Showengerdt (2007), defining remote sensing as the measurement of object properties on the Earth’s surface using data acquired from aircraft and satellites. Definitions may vary according to the context, so we assume that the basic principle of remote sensing is the analysis of electromagnetic radiation across different wavelengths and its interaction with targets on Earth’s surface.