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 8: Fine Spatial Resolution Optical Sensors
Fine Spatial Resolution Optical Sensors
spacecraft, orbits, camera, CCD.
For a long time spaceborne remote sensing, especially sensors with fine spatial resolution, remained in the military domain (Aplin et al. 1997). In 1986, a breakthrough was realized with the launch of first French satellite Satellite Pour l' Observation de la Terre (SPOT) carrying sensors with spatial resolution as fine as 10 m. Later on to re-enforce the presumed United States (US) leadership in civil satellites, the US Land Remote Sensing Policy Act of 1992 allowed the commercialization of satellites carrying up to 1 m resolution sensors, and subsequently IKONOS, the first commercial satellite (0.81 m resolution), was successfully launched in September 1999. Because more than a dozen commercial satellites have now been ...