> because their floating surface canopies have strong reflectance in the near-infrared, similar to terrestrial vegetation`, so you wouldn't be able to see the d

> because their floating surface canopies have strong reflectance in the near-infrared, similar to terrestrial vegetation`, so you wouldn't be able to see the difference anyways. This is not true. You can certainly look at the near infrared channel of an image (it is just a regular gray-scale image anyway) and see right away the vegetation.