What is Remote Sensing?

Remote sensing is a technology that gathers information about the Earth’s surface without making direct contact. It involves sensing and recording energy reflections or emissions, and then processing, analyzing, and using that data. Special cameras are used to collect images from objects on Earth, which are then analyzed to provide information about the planet.

In simple terms, remote sensing is about gathering information from objects on Earth using satellites. It involves recording energy reflections or emissions and then analyzing and applying that information.

There are many remote sensing satellites launched by various countries, such as the Indian Remote Sensing Satellite (IRS), Sputnik 1 from Russia, and Explorer 1 from the USA. These satellites help measure the radiation emitted and reflected by different regions, enabling scientists to monitor the Earth’s physical properties from afar.

For instance, sonar equipment on ships can capture images of the seafloor without diving into the ocean. Remote sensing can track changes in agriculture, forests, and urban areas over time, providing valuable insights for various purposes.

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