Synthetic Aperture Radar (SAR) is a form of radar used to create two-dimensional images or three-dimensional reconstructions of objects, including landscapes. It operates by sending out radar pulses and measuring the time it takes for the signals to return after reflecting off objects, which allows for high-resolution imaging regardless of weather conditions or daylight. This technology is particularly useful for change detection and time series analysis as it can consistently gather data over time, revealing changes in the Earth's surface or man-made structures.
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