Portfolio 5 – Seaweed

20 07 2013

This image is of seaweed washed up at Point Pleasant Park in late May.  Different types of seaweed reflect IR differently — so do different plant parts.  In this image, tree twigs are mixed up with a type of seaweed commonly known as rockweed (Ascophyllum nodosum). Visually, those were of the same colour of green, but in infrared, the twigs came out a blue while the seaweed became very white.

Seaweed and twigs at Point Pleasant Park beach

(Near-infrared photography is also used as a scientific and a mapping tool to identify vegetation and land cover over terrestrial surfaces of the planet as well as algal blooms in lakes.)

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