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Re:Ancient Maya city – Lidar technology unearthed tropical m... by czx4f4bd on Friday October 28, 2022 @11:17PM (#33380659)
Good question.

> What makes lidar a better choice for many applications, including archaeology, is that the wavelength is about half a micron – tiny relative to radar wavelengths, which are measured in centimetres or decimetres. For details of a relatively small spot on the ground, lidar provides a precision that radar cannot match.

Source: https://www.theguardian.com/science/2015/jun/20/lidar-radar-...

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