Remote sensing sensors has its roots in the 19th century in the development of photography. Photography was an invention that made it possible to acquire a permanent image. The first photographic image was taken in 1826 by Joseph Nicephore Nieppce. While the first aerial photograph was taken in 1858 by Felix Tournachon, known as Nadar, from a tethered baloon over Biévre Valley in France. In 1907 Julius Neubronner developed a light miniature camera that could be fitted to a pigeon's breast. It can be said that the construction camera + pigeon was the precursor of today's unmanned aerial vehicle (UAV) or drone. Further developments focused on developing new sensors (analog vs. digital frame cameras) and how to save and store images (e.g. photographic emulsions, films). The origin of other types of remote sensing can be traced to World War II, with the development of radar, sonar, and thermal infrared detection systems. Since the 1960s, sensors were designed to operate in virtually all of the electromagnetic spectrum. Both civil and military aerial photography have long been widely used in cartography to create maps. Specialized large format cameras (looking vertically down, assuming the plane is flying horizontally) were developed. Such cameras have been specially designed to perform almost vertical sequences of bird-eye exposures during aircraft flight. Hence for a long time remote sensing consisted of aerial photography and photogrammetry using analogue mechanical or optical equipment. Everything has changed with satellites and the space race. The first real success of remote sensing satellites in serious scientific work was in meteorology, weather satellite TIROS-1, launched by NASA on April 1, 1960. Today a wide variety of remote sensing instruments are available as data source for use in different applications for land, water and atmosphere monitoring.
Discuss the development of remote sensing sensors
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