remote sensing
Sign in to saveacquisition of information about an object or phenomenon without making physical contact with the object, especially the Earth
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Remote sensing is a way of gathering information about something—like the Earth's surface—without actually touching it or being physically present there. It matters because it lets scientists and organizations study large areas quickly and safely, monitoring things like weather patterns, land use, environmental changes, and natural disasters from a distance.
AI-generated from the Wikipedia summary — may contain errors.
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Synthetic aperture radar image of Death Valley colored using polarimetry
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. Remote sensing is used in numerous fields, including geophysics, geography, land surveying and most Earth science disciplines (e.g. exploration geophysics, hydrology, ecology, meteorology, oceanography, glaciology, geology). It also has military, intelligence, commercial, economic, planning, and humanitarian applications, among others.