Technology |

Polar Regions | Remote Sensing Approach

Remote sensing is a tool for data acquisition through two primary techniques-active and passive. Active remote sensing is employed in polar regions during consistent cloud cover and darkness, where the sensor in orbit (eg., LIDAR and RADAR) sends its own signal and records the backscatter signal. During cloud-free conditions, however, the passive remote sensing measures the radiation reflected from the surface, eliminating the need to send its own signals. Researchers working on polar regions use this data to study temporal...

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