Intensity Data

Intensity Data – when the laser return is recorded, the strength of the return is also recorded. The values represent how well the object reflected the wavelength of light used by the laser system (e.g., 1,064 nanometer for most commercial topography sensors in the U.S.). These data resemble a black and white photo but cannot be interpreted in exactly the same manner.

https://coast.noaa.gov/data/digitalcoast/pdf/lidar-101.pdf

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