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radar, lidar, and SODAR are examples of active remote sensing techniques used in atmospheric physics where the time delay between emission and return is measured, establishing the location, height, speed and direction of an object. [2] Remote sensing makes it possible to collect data on dangerous or inaccessible areas.
Atmospheric correction. Atmospheric correction is the process of removing the scattering and absorption effects of the atmosphere on the reflectance values of images taken by satellite or airborne sensors. [1][2] Atmospheric effects in optical remote sensing are significant and complex, dramatically altering the spectral nature of the radiation ...
Atmospheric lidar. For broader coverage of this topic, see Lidar. Atmospheric lidar is a class of instruments that uses laser light to study atmospheric properties from the ground up to the top of the atmosphere. Such instruments have been used to study, among other, atmospheric gases, aerosols, clouds, and temperature.
Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object, in contrast to in situ or on-site observation. The term is applied especially to acquiring information about Earth and other planets .
Atmospheric Sciences Laboratory. The Atmospheric Sciences Laboratory (ASL) was a research institution under the U.S. Army Materiel Command that specialized in artillery meteorology, electro-optical climatology, atmospheric optics data, and atmospheric characterization from 1965 to 1992. [1] ASL was one of the seven Army laboratories that merged ...
Radio occultation. Radio occultation analysis of signal delay by the tandem FORMOSAT-3/COSMIC used as atmospheric sounding. Radio occultation (RO) is a remote sensing technique used for measuring the physical properties of a planetary atmosphere or ring system. Satellites carrying onboard GNSS-Radio occultation instruments include CHAMP ...
Hence the remote sensing data has to be classified first, followed by processing by various data enhancement techniques so as to help the user to understand the features that are present in the image. Such classification is a complex task which involves rigorous validation of the training samples depending on the classification algorithm used.
Atmospheric windows are useful for astronomy, remote sensing, telecommunications and other science and technology applications. In the study of the greenhouse effect, the term atmospheric window may be limited to mean the infrared window, which is the primary escape route for a fraction of the thermal radiation emitted near the surface.