Remote sensing

Uncommon card · No. 154794

Remote sensing is the acquisition of information about an object or area from a distance, without touching it, as opposed to measuring it on-site observation. The term often refers to observing Earth from satellites or aircraft, but also covers studies of other planets and some ship- or ground-based methods, such as sonar. Remote sensing produces the satellite views in online maps and the cloud imagery shown in weather forecasts. 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. In current usage, the term remote sensing generally refers to the use of satellite- or airborne-based sensor technologies to detect and classify objects on Earth. It includes the surface and the atmosphere and oceans, based on propagated...

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