Remote sensing acquires and interprets small or large-scale data about the Earth from a distance. Using a wide range of spatial, spectral, temporal, and radiometric scales remote sensing is a large and diverse field for which this Handbook will be the key research reference. Illustrated throughout, an essential resource for the analysis of remotely sensed data, The SAGE Handbook of Remote Sensing provides researchers with a definitive statement of the core concepts and methodologies in the discipline.
Chapter 4: Interactions of Middle Infrared (3–5 μm) Radiation with the Environment
Interactions of Middle Infrared (3–5 μm) Radiation with the Environment
middle infrared radiation, reflectance, emissivity, brightness temperature, Advanced Very High Resolution Radiometer, clouds, fires, hot spots, vegetation.
In passive remote sensing systems, of which infrared systems are an example, the remote sensing instrument detects electromagnetic radiation which falls on it, but which was generated by some other source. At ultraviolet, visible and near infrared wavelength (below about 1 μm wavelength) this radiation is almost universally reflected solar radiation. For far infrared radiation (above about 10 μm wavelength), frequently referred to as thermal infrared radiation, the radiation is emitted from the surface of the target. For middle infrared radiation (MIR; 3-5 μm wavelength), the subject of this chapter, ...